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S29AS008J 8 Megabit (1M x 8-Bit / 512K x 16-Bit) CMOS 1.8 Volt-only Boot Sector Flash Memory Data Sheet S29AS008J Cover Sheet Notice to Readers: This document states the current technical specifications regarding the Spansion product(s) described herein. Each product described herein may be designated as Advance Information, Preliminary, or Full Production. See Notice On Data Sheet Designations for definitions. Publication Number S29AS008J_00 Revision 08 Issue Date July 16, 2009 Data Sheet Notice On Data Sheet Designations Spansion Inc. issues data sheets with Advance Information or Preliminary designations to advise readers of product information or intended specifications throughout the product life cycle, including development, qualification, initial production, and full production. In all cases, however, readers are encouraged to verify that they have the latest information before finalizing their design. The following descriptions of Spansion data sheet designations are presented here to highlight their presence and definitions. Advance Information The Advance Information designation indicates that Spansion Inc. is developing one or more specific products, but has not committed any design to production. Information presented in a document with this designation is likely to change, and in some cases, development on the product may discontinue. Spansion Inc. therefore places the following conditions upon Advance Information content: "This document contains information on one or more products under development at Spansion Inc. The information is intended to help you evaluate this product. Do not design in this product without contacting the factory. Spansion Inc. reserves the right to change or discontinue work on this proposed product without notice." Preliminary The Preliminary designation indicates that the product development has progressed such that a commitment to production has taken place. This designation covers several aspects of the product life cycle, including product qualification, initial production, and the subsequent phases in the manufacturing process that occur before full production is achieved. Changes to the technical specifications presented in a Preliminary document should be expected while keeping these aspects of production under consideration. Spansion places the following conditions upon Preliminary content: "This document states the current technical specifications regarding the Spansion product(s) described herein. The Preliminary status of this document indicates that product qualification has been completed, and that initial production has begun. Due to the phases of the manufacturing process that require maintaining efficiency and quality, this document may be revised by subsequent versions or modifications due to changes in technical specifications." Combination Some data sheets contain a combination of products with different designations (Advance Information, Preliminary, or Full Production). This type of document distinguishes these products and their designations wherever necessary, typically on the first page, the ordering information page, and pages with the DC Characteristics table and the AC Erase and Program table (in the table notes). The disclaimer on the first page refers the reader to the notice on this page. Full Production (No Designation on Document) When a product has been in production for a period of time such that no changes or only nominal changes are expected, the Preliminary designation is removed from the data sheet. Nominal changes may include those affecting the number of ordering part numbers available, such as the addition or deletion of a speed option, temperature range, package type, or VIO range. Changes may also include those needed to clarify a description or to correct a typographical error or incorrect specification. Spansion Inc. applies the following conditions to documents in this category: "This document states the current technical specifications regarding the Spansion product(s) described herein. Spansion Inc. deems the products to have been in sufficient production volume such that subsequent versions of this document are not expected to change. However, typographical or specification corrections, or modifications to the valid combinations offered may occur." Questions regarding these document designations may be directed to your local sales office. 2 S29AS008J S29AS008J_00_08 July 16, 2009 S29AS008J 8 Megabit (1M x 8-Bit / 512K x 16-Bit) CMOS 1.8 Volt-only Boot Sector Flash Memory Data Sheet Distinctive Characteristics Architectural Advantages Single Power Supply Operation - Full voltage range: 1.65 to 1.95 volt read and write operations for battery-powered applications Ultra Low Power Consumption (typical values at 5 MHz) - - - - 15 A Automatic Sleep mode current 8 A standby mode current 8 mA read current 20 mA program/erase current Manufactured on 110 nm Process Technology Secured Silicon Sector region - 128-word/256-byte sector for permanent, secure identification through an 8-word/16-byte random Electronic Serial Number, accessible through a command sequence - May be programmed and locked at the factory or by the customer Cycling Endurance: 1,000,000 cycles per sector typical Data Retention: 20 years typical Package Options 48-ball BGA 48-pin TSOP Flexible Sector Architecture - Eight 8 Kbyte and fifteen 64 Kbyte sectors (byte mode) - Eight 4 Kword, and fifteen 32 Kword sectors (word mode) Software Features CFI (Common Flash Interface) Compliant - Provides device-specific information to the system, allowing host software to easily reconfigure for different Flash devices Sector Group Protection Features - A hardware method of locking a sector to prevent any program or erase operations within that sector - Sectors can be locked in-system or via programming equipment - Temporary Sector Group Unprotect feature allows code changes in previously locked sectors Erase Suspend/Erase Resume - Suspends an erase operation to read data from, or program data to, a sector that is not being erased, then resumes the erase operation Unlock Bypass Program Command - Reduces overall programming time when issuing multiple program command sequences Data# Polling and Toggle Bits - Provides a software method of detecting program or erase operation completion Top or Bottom Boot Block Configurations Available Compatibility with JEDEC standards - Pinout and software compatible with single-power supply Flash - Superior inadvertent write protection Hardware Features Ready/Busy# Pin (RY/BY#) - Provides a hardware method of detecting program or erase cycle completion Performance Characteristics High Performance - Access times as fast as 70 ns - Industrial temperature range (-40C to +85C) - Word programming time as fast as 6 s (typical) Hardware Reset Pin (RESET#) - Hardware method to reset the device to reading array data WP# input pin - Write protect (WP#) function allows protection of two outermost boot sectors (boot sector models only), regardless of sector group protect status Publication Number S29AS008J_00 Revision 08 Issue Date July 16, 2009 This document states the current technical specifications regarding the Spansion product(s) described herein. Spansion Inc. deems the products to have been in sufficient production volume such that subsequent versions of this document are not expected to change. However, typographical or specification corrections, or modifications to the valid combinations offered may occur. Data Sheet General Description The S29AS008J is a 8 Mbit, 1.8 Volt-only Flash memory organized as 1,048,576 bytes or 524,288 words with a x8/x16 bus and either top or bottom boot sector architecture. The device is offered in 48-pin TSOP and 48ball FBGA packages. The word-wide data (x16) appears on DQ15-DQ0; the byte-wide (x8) data appears on DQ7-DQ0. This device is designed to be programmed and erased in-system with the standard system 1.8 volt VCC supply. A 12.0 V VPP or 5.0 VCC are not required for program or erase operations. The device can also be programmed in standard EPROM programmers. The device offers access time of 70 ns allowing high speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CE#), write enable (WE#) and output enable (OE#) controls. The device requires only a single 1.8 volt power supply for both read and write functions. Internally generated and regulated voltages are provided for the program and erase operations. The S29AS008J is entirely command set compatible with the JEDEC single-power-supply Flash standard. Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine that controls the erase and programming circuitry. Write cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is similar to reading from other Flash or EPROM devices. Device programming occurs by executing the program command sequence. This initiates the Embedded Program algorithm--an internal algorithm that automatically times the program pulse widths and verifies proper cell margin. The Unlock Bypass mode facilitates faster programming times by requiring only two write cycles to program data instead of four. Device erasure occurs by executing the erase command sequence. This initiates the Embedded Erase algorithm--an internal algorithm that automatically preprograms the array (if it is not already programmed) before executing the erase operation. During erase, the device automatically times the erase pulse widths and verifies proper cell margin. The host system can detect whether a program or erase operation is complete by observing the RY/BY# pin, or by reading the DQ7 (Data# Polling) and DQ6 (toggle) status bits. After a program or erase cycle has been completed, the device is ready to read array data or accept another command. The sector erase architecture allows memory sectors to be erased and reprogrammed without affecting the data contents of other sectors. The device is fully erased when shipped from the factory. Hardware data protection measures include a low VCC detector that automatically inhibits write operations during power transitions. The hardware sector group protection feature disables both program and erase operations in any combination of the sectors of memory. This can be achieved in-system or via programming equipment. The Erase Suspend/Erase Resume feature enables the user to put erase on hold for any period of time to read data from, or program data to, any sector that is not selected for erasure. True background erase can thus be achieved. The hardware RESET# pin terminates any operation in progress and resets the internal state machine to reading array data. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the device, enabling the system microprocessor to read the boot-up firmware from the Flash memory. The device offers two power-saving features. When addresses have been stable for a specified amount of time, the device enters the automatic sleep mode. The system can also place the device into the standby mode. Power consumption is greatly reduced in both these modes. Spansion's Flash technology combines years of Flash memory manufacturing experience to produce the highest levels of quality, reliability and cost effectiveness. The device electrically erases all bits within a sector simultaneously via Fowler-Nordheim tunneling. The data is programmed using hot electron injection. 4 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Table of Contents Distinctive Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 2. 3. Product Selector Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Standard TSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 FBGA Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Special Handling Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 10 11 11 4. 5. 6. 7. Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.1 S29AS008J Standard Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 Word/Byte Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Requirements for Reading Array Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 Writing Commands/Command Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4 Program and Erase Operation Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6 Automatic Sleep Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.7 RESET#: Hardware Reset Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8 Output Disable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9 Autoselect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.10 Sector Address Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.11 Sector Group Protection/Unprotection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.12 Temporary Sector Group Unprotect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.13 Write Protect (WP#) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.14 Hardware Data Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 14 14 15 15 15 15 16 16 16 17 19 21 21 22 8. Secured Silicon Sector Flash Memory Region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.1 Factory Locked: Secured Silicon Sector Programmed and Protected at the Factory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8.2 Customer Lockable: Secured Silicon Sector NOT Programmed or Protected at the Factory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Common Flash Memory Interface (CFI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Command Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 Reading Array Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 Reset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3 Autoselect Command Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4 Enter Secured Silicon Sector/Exit Secured Silicon Sector Command Sequence . . . . . . . . . 10.5 Word/Byte Program Command Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.6 Unlock Bypass Command Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.7 Chip Erase Command Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 Sector Erase Command Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.9 Erase Suspend/Erase Resume Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 28 28 28 29 29 29 30 31 31 9. 10. 11. 12. Command Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Write Operation Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 DQ7: Data# Polling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.2 RY/BY#: Ready/Busy#. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 DQ6: Toggle Bit I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4 DQ2: Toggle Bit II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 Reading Toggle Bits DQ6/DQ2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.6 DQ5: Exceeded Timing Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.7 DQ3: Sector Erase Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 35 36 37 37 38 39 39 July 16, 2009 S29AS008J_00_08 S29AS008J 5 Data Sheet 13. 14. 15. 16. 17. 18. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 15.1 CMOS Compatible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Key to Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1 Read Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2 Hardware Reset (RESET#) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3 Word/Byte Configuration (BYTE#) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4 Erase/Program Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.5 Temporary Sector Group Unprotect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.6 Alternate CE# Controlled Erase/Program Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 43 44 45 46 49 50 19. 20. 21. Erase and Programming Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Package Pin Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 21.1 TS 048 - 48-Pin Standard TSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 21.2 VBK048--48-Ball Fine-Pitch Ball Grid Array (FBGA) 8.15 mm x 6.15 mm . . . . . . . . . . . . . . 53 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 22. 6 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Figures Figure 7.1 Figure 7.2 Figure 8.1 Figure 10.1 Figure 10.2 Figure 12.1 Figure 12.2 Figure 14.1 Figure 14.2 Figure 16.1 Figure 17.1 Figure 18.1 Figure 18.2 Figure 18.3 Figure 18.4 Figure 18.5 Figure 18.6 Figure 18.7 Figure 18.8 Figure 18.9 Figure 18.10 Figure 18.11 Figure 18.12 In-System Sector Group Protect/Unprotect Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Temporary Sector Group Unprotect Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Secured Silicon Sector Protect Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Program Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Erase Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Data# Polling Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Toggle Bit Algorithm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Maximum Negative Overshoot Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Maximum Positive Overshoot Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Input Waveforms and Measurement Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Read Operations Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 RESET# Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 BYTE# Timings for Read Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 BYTE# Timings for Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Program Operation Timings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Chip/Sector Erase Operation Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Data# Polling Timings (During Embedded Algorithms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Toggle Bit Timings (During Embedded Algorithms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 DQ2 vs. DQ6 for Erase and Erase Suspend Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Temporary Sector Group Unprotect/Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Sector Group Protect/Unprotect Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Alternate CE# Controlled Write Operation Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 July 16, 2009 S29AS008J_00_08 S29AS008J 7 Data Sheet Tables Table 7.1 Table 7.2 Table 7.3 Table 7.4 Table 7.5 Table 7.6 Table 9.1 Table 9.2 Table 9.3 Table 9.4 Table 11.1 Table 11.2 Table 12.1 Table 16.1 S29AS008J Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 S29AS008J Autoselect Codes (High Voltage Method) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Sector Address Tables (Top Boot Device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Sector Address Tables (Bottom Boot Device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 AS008J Top Boot Device Sector/Sector Group Protection . . . . . . . . . . . . . . . . . . . . . . . . . . .19 AS008J Bottom Boot Device Sector/Sector Group Protection . . . . . . . . . . . . . . . . . . . . . . . .19 CFI Query Identification String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 System Interface String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Device Geometry Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Primary Vendor-Specific Extended Query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 S29AS008J Command Definitions (Word Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 S29AS008J Command Definitions (Byte Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Write Operation Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Test Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 8 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 1. Product Selector Guide Family Part Number Speed Option Max access time, ns (tACC) Max CE# access time, ns (tCE) Max OE# access time, ns (tOE) Note See AC Characteristics on page 43 for full specifications. Voltage Range: VCC = 1.65-1.95 V S29AS008J 70 70 70 25 2. Block Diagram RY/BY# VCC VSS RESET# Sector Switches Erase Voltage Generator DQ0-DQ15 (A-1) Input/Output Buffers WE# BYTE# WP# State Control Command Register PGM Voltage Generator Chip Enable Output Enable Logic Data Latch CE# OE# Y-Decoder Y-Gating VCC Detector Timer Address Latch X-Decoder Cell Matrix A0-A18 July 16, 2009 S29AS008J_00_08 S29AS008J 9 Data Sheet 3. 3.1 Connection Diagrams Standard TSOP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 A16 BYTE# VSS DQ15/A-1 DQ7 DQ14 DQ6 DQ13 DQ5 DQ12 DQ4 VCC DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE# VSS CE# A0 A15 A14 A13 A12 A11 A10 A9 A8 NC NC WE# RESET# NC WP# RY/BY# A18 A17 A7 A6 A5 A4 A3 A2 A1 Standard TSOP 10 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 3.2 FBGA Connection Diagram Fine-pitch Ball Grid Array Top View, Balls Facing Down A6 A13 A5 A9 A4 WE# A3 RY/BY# A2 A7 A1 A3 B6 A12 B5 A8 B4 RESET# B3 WP# B2 A17 B1 A4 C6 A14 C5 A10 C4 NC C3 A18 C2 A6 C1 A2 D6 A15 D5 A11 D4 NC D3 NC D2 A5 D1 A1 E6 A16 E5 DQ7 E4 DQ5 E3 DQ2 E2 DQ0 E1 A0 F6 G6 H6 VSS H5 DQ6 H4 DQ4 H3 DQ3 H2 DQ1 H1 VSS BYTE# DQ15/A-1 F5 DQ14 F4 DQ12 F3 DQ10 F2 DQ8 F1 CE# G5 DQ13 G4 VCC G3 DQ11 G2 DQ9 G1 OE# 3.3 Special Handling Instructions Special handling is required for Flash Memory products in BGA packages. Flash memory devices in BGA packages may be damaged if exposed to ultrasonic cleaning methods. The package and/or data integrity may be compromised if the package body is exposed to temperatures above 150C for prolonged periods of time. July 16, 2009 S29AS008J_00_08 S29AS008J 11 Data Sheet 4. Pin Configuration A0-A18 DQ0-DQ14 DQ15/A-1 BYTE# CE# OE# WE# WP# RESET# RY/BY# VCC VSS NC 19 addresses 15 data inputs/outputs DQ15 (data input/output, word mode), A-1 (LSB address input, byte mode) Selects 8-bit or 16-bit mode Chip enable Output enable Write enable Write protect: The WP# contains an internal pull-up; when unconnected, WP is at VIH. Hardware reset pin Ready/Busy output 1.8 volt-only single power supply (see Product Selector Guide on page 9 for speed options and voltage supply tolerances) Device ground Pin not connected internally 5. Logic Symbol 19 A0-A18 DQ0-DQ15 (A-1) CE# OE# WE# RESET# BYTE# WP# RY/BY# 16 or 8 12 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 6. 6.1 Ordering Information S29AS008J Standard Products Spansion standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the elements below. S29AS008J 70 T F I 03 0 Packing Type 0 = Tray 2 = 7" Tape and Reel 3 = 13" Tape and Reel Model Number 03 = VCC = 1.65-1.95 V, top boot sector device 04 = VCC = 1.65-1.95 V, bottom boot sector device Temperature Range I = Industrial (-40C to +85C) Package Material Set F = Pb-Free Package Type T = Thin Small Outline Package (TSOP) Standard Pinout B = Fine-pitch Ball-Grid Array Package Speed Option 70 = 70 ns Access Speed Device Number/Description S29AS008J 8 Megabit Flash Memory manufactured using 110 nm process technology 1.8 Volt-only Read, Program, and Erase Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device. Consult your local sales office to confirm availability of specific valid combinations and to check on newly released combinations. S29AS008J Valid Combinations Device Number Speed Option Package Type, Material, and Temperature Range TFI S29AS008J 70 BFI Notes 1. Type 0 is standard. Specify other options as required. 2. TSOP package markings omit packing type designator from ordering part number. 03, 04 Model Number Packing Type 0, 3 (Note 1) 0, 2, 3 Package Description TS048 (Note 2) VBK048 TSOP Fine-Pitch BGA July 16, 2009 S29AS008J_00_08 S29AS008J 13 Data Sheet 7. Device Bus Operations This section describes the requirements and use of the device bus operations, which are initiated through the internal command register. The command register itself does not occupy any addressable memory location. The register is composed of latches that store the commands, along with the address and data information needed to execute the command. The contents of the register serve as inputs to the internal state machine. The state machine outputs dictate the function of the device. Table 7.1 lists the device bus operations, the inputs and control levels they require, and the resulting output. The following subsections describe each of these operations in further detail. Table 7.1 S29AS008J Device Bus Operations DQ8-DQ15 Operation Read Write (Program/Erase) Standby Output Disable Reset Sector Group Protect (Note 2) Sector Group Unprotect (Note 2) Temporary Sector Group Unprotect CE# L L VCC 0.2 V L X L OE# L H X H X H WE# H L X H X L RESET# H H VCC 0.2 V H L VID WP# X (Note 3) H X X X Addresses (Note 1) AIN AIN X X X Sector Address, A6 = L, A3 = A2 = L, A1 = H, A0 = L Sector Address, A6 = H, A3 = A2 = L, A1 = H, A0 = L AIN DQ0- DQ7 DOUT DIN High-Z High-Z High-Z DIN BYTE# = VIH DOUT DIN High-Z High-Z High-Z X BYTE# = VIL DQ8-DQ14 = High-Z, DQ15 = A-1 High-Z High-Z High-Z X L H L VID H DIN X X X X X VID H DIN DIN High-Z Legend L = Logic Low = VIL, H = Logic High = VIH, VID = 9.0-11.0 V, X = Don't Care, AIN = Address In, DIN = Data In, DOUT = Data Out Notes 1. Addresses are A18:A0 in word mode (BYTE# = VIH), A18:A-1 in byte mode (BYTE# = VIL). 2. The sector group protect and sector group unprotect functions may also be implemented via programming equipment. See Sector Group Protection/Unprotection on page 19. 3. If WP# = VIL, the two outermost boot sectors remain protected. If WP# = VIH, the two outermost boot sector group protection depends on whether they were last protected or unprotected. If WP# = VHH, all sectors are unprotected. 7.1 Word/Byte Configuration The BYTE# pin controls whether the device data I/O pins DQ15-DQ0 operate in the byte or word configuration. If the BYTE# pin is set at logic 1, the device is in word configuration, DQ15-DQ0 are active and controlled by CE# and OE#. If the BYTE# pin is set at logic 0, the device is in byte configuration, and only data I/O pins DQ0-DQ7 are active and controlled by CE# and OE#. The data I/O pins DQ8-DQ14 are tri-stated, and the DQ15 pin is used as an input for the LSB (A-1) address function. 7.2 Requirements for Reading Array Data To read array data from the outputs, the system must drive the CE# and OE# pins to VIL. CE# is the power control and selects the device. OE# is the output control and gates array data to the output pins. WE# should remain at VIH. The BYTE# pin determines whether the device outputs array data in words or bytes. The internal state machine is set for reading array data upon device power-up, or after a hardware reset. This ensures that no spurious alteration of the memory content occurs during the power transition. No command is necessary in this mode to obtain array data. Standard microprocessor read cycles that assert valid addresses on the device address inputs produce valid data on the device data outputs. The device remains enabled for read access until the command register contents are altered. See Reading Array Data on page 28 for more information. Refer to the AC Read Operations on page 43 for timing specifications and to Figure 18.1 on page 43 for the timing diagram. ICC1 in DC Characteristics on page 41 represents the active current specification for reading array data. 14 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 7.3 Writing Commands/Command Sequences To write a command or command sequence (which includes programming data to the device and erasing sectors of memory), the system must drive WE# and CE# to VIL, and OE# to VIH. For program operations, the BYTE# pin determines whether the device accepts program data in bytes or words. See Word/Byte Configuration on page 14 for more information. The device features an Unlock Bypass mode to facilitate faster programming. Once the device enters the Unlock Bypass mode, only two write cycles are required to program a word or byte, instead of four. Word/ Byte Program Command Sequence on page 29 has details on programming data to the device using both standard and Unlock Bypass command sequences. An erase operation can erase one sector, multiple sectors, or the entire device. Table 7.3 on page 17 and Table 7.4 on page 18 indicate the address space that each sector occupies. A "sector address" consists of the address bits required to uniquely select a sector. The Command Definitions on page 28 has details on erasing a sector or the entire chip, or suspending/resuming the erase operation. After the system writes the autoselect command sequence, the device enters the autoselect mode. The system can then read autoselect codes from the internal register (which is separate from the memory array) on DQ7-DQ0. Standard read cycle timings apply in this mode. Refer to Autoselect Mode on page 16 and Autoselect Command Sequence on page 28 for more information. ICC2 in DC Characteristics on page 41 represents the active current specification for the write mode. AC Characteristics on page 43 contains timing specification tables and timing diagrams for write operations. 7.4 Program and Erase Operation Status During an erase or program operation, the system may check the status of the operation by reading the status bits on DQ7-DQ0. Standard read cycle timings and ICC read specifications apply. Refer to Write Operation Status on page 35 for more information, and to AC Characteristics on page 43 for timing diagrams. 7.5 Standby Mode When the system is not reading or writing to the device, it can place the device in the standby mode. In this mode, current consumption is greatly reduced, and the outputs are placed in the high impedance state, independent of the OE# input. The device enters the CMOS standby mode when the CE# and RESET# pins are both held at VCC 0.2 V. (Note that this is a more restricted voltage range than VIH.) If CE# and RESET# are held at VIH, but not within VCC 0.2 V, the device will be in the standby mode, but the standby current will be greater. The device requires standard access time (tCE) for read access when the device is in either of these standby modes, before it is ready to read data. If the device is deselected during erasure or programming, the device draws active current until the operation is completed. ICC3 and ICC4 represents the standby current specification shown in the table in DC Characteristics on page 41. 7.6 Automatic Sleep Mode The automatic sleep mode minimizes Flash device energy consumption. The device automatically enables this mode when addresses remain stable for tACC + 30 ns. The automatic sleep mode is independent of the CE#, WE#, and OE# control signals. Standard address access timings provide new data when addresses are changed. While in sleep mode, output data is latched and always available to the system. ICC5 in the DC Characteristics on page 41 represents the automatic sleep mode current specification. July 16, 2009 S29AS008J_00_08 S29AS008J 15 Data Sheet 7.7 RESET#: Hardware Reset Pin The RESET# pin provides a hardware method of resetting the device to reading array data. When the system drives the RESET# pin to VIL for at least a period of tRP, the device immediately terminates any operation in progress, tristates all data output pins, and ignores all read/write attempts for the duration of the RESET# pulse. The device also resets the internal state machine to reading array data. The operation that was interrupted should be reinitiated once the device is ready to accept another command sequence, to ensure data integrity. Current is reduced for the duration of the RESET# pulse. When RESET# is held at VSS0.2 V, the device draws CMOS standby current (ICC4). If RESET# is held at VIL but not within VSS0.2 V, the standby current will be greater. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the Flash memory, enabling the system to read the boot-up firmware from the Flash memory. If RESET# is asserted during a program or erase operation, the RY/BY# pin remains a 0 (busy) until the internal reset operation is complete, which requires a time of tREADY (during Embedded Algorithms). The system can thus monitor RY/BY# to determine whether the reset operation is complete. If RESET# is asserted when a program or erase operation is not executing (RY/BY# pin is 1), the reset operation is completed within a time of tREADY (not during Embedded Algorithms). The system can read data tRH after the RESET# pin returns to VIH. Refer to the tables in AC Characteristics on page 43 for RESET# parameters and to Figure 18.2 on page 44 for the timing diagram. If VID (9.0 V - 11.0 V) is applied to the RESET# pin, the device will enter the Temporary Sector Group Unprotect mode. See Temporary Sector Group Unprotect on page 21 for more details on this feature. 7.8 Output Disable Mode When the OE# input is at VIH, output from the device is disabled. The output pins are placed in the high impedance state. 7.9 Autoselect Mode The autoselect mode provides manufacturer and device identification, sector group protection verification, and Secured Silicon Sector status through identifier codes output on DQ7-DQ0. This mode is primarily intended for programming equipment to automatically match a device to be programmed with its corresponding programming algorithm. However, the autoselect codes can also be accessed in-system through the command register. When using programming equipment, the autoselect mode requires VID (9.0 V to 11.0 V) on address pin A9. Address pins A6, A3, A2, A1, and A0 must be as shown in Table 7.2. In addition, when verifying sector group protection, the sector address must appear on the appropriate highest order address bits (see Table 7.3 on page 17 and Table 7.4 on page 18). Table 7.2 shows the remaining address bits that are don't care. When all necessary bits have been set as required, the programming equipment may then read the corresponding identifier code on DQ7-DQ0. To access the autoselect codes in-system, the host system can issue the autoselect command via the command register, as shown in Table 11.1 on page 33. This method does not require VID. See Command Definitions on page 28 for details on using the autoselect mode. 16 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Table 7.2 S29AS008J Autoselect Codes (High Voltage Method) A18 to A12 X X X X SA A11 to A10 X X X X X A8 to A7 X X X X X A5 to A4 X X X X X A3 to A2 L L H H L DQ8 to DQ15 A1 L L H H H A0 L H L H L BYTE = VIH 00h 22h 22h 22h X BYTE = VIL X X X X X DQ7 to DQ0 01h 7Eh 04h 04h (Top Boot), 03h (Bottom Boot) 01h (protected), 00h (unprotected) 89h (factory locked), 09h (not factory locked) Description Manufacturer ID: Spansion Cycle 1 Device ID Cycle 2 Cycle 3 Sector Group Protection Verification Secured Silicon Sector Indicator Bit (DQ7), WP# protects highest address sector Secured Silicon Sector Indicator Bit (DQ7), WP# protects lowest address sector CE# L L L L L OE# L L L L L WE# H H H H H A9 VID VID VID VID VID A6 L L L L L L L H X X VID X L X L H H X X L L H X X VID X L X L H H X X 91h (factory locked), 11h (not factory locked) Legend L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don't care Note The autoselect codes may also be accessed in-system via command sequences. See Table 11.1 on page 33. 7.10 Sector Address Tables Table 7.3 Sector Address Tables (Top Boot Device) Sector Size (Kbytes/ Kwords) 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 8/4 8/4 8/4 8/4 8/4 8/4 8/4 8/4 Address Range (in hexadecimal) Byte Mode (x8) 00000-0FFFF 10000-1FFFF 20000-2FFFF 30000-3FFFF 40000-4FFFF 50000-5FFFF 60000-6FFFF 70000-7FFFF 80000-8FFFF 90000-9FFFF A0000-AFFFF B0000-BFFFF C0000-CFFFF D0000-DFFFF E0000-EFFFF F0000-F1FFF F2000 - F3FFF F4000 - F5FFF F6000 - F7FFF F8000 - F9FFF FA000 - FBFFF FC000 - FDFFF FE000 - FFFFF Word Mode (x16) 00000-07FFF 08000-0FFFF 10000-17FFF 18000-1FFFF 20000-27FFF 28000-2FFFF 30000-37FFF 38000-3FFFF 40000-47FFF 48000-4FFFF 50000-57FFF 58000-5FFFF 60000-67FFF 68000-6FFFF 70000-77FFF 78000-78FFF 79000-79FFF 7A000-7AFFF 7B000-7BFFF 7C000-7CFFF 7D000-7DFFF 7E000-7EFFF 7F000-7FFFF Sector SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9 SA10 SA11 SA12 SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20 SA21 SA22 A18 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 A17 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 A16 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1 1 1 1 1 1 1 A15 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 A14 X X X X X X X X X X X X X X X 0 0 0 0 1 1 1 1 A13 X X X X X X X X X X X X X X X 0 0 1 1 0 0 1 1 A12 X X X X X X X X X X X X X X X 0 1 0 1 0 1 0 1 Note Address range is A18:A-1 in byte mode and A18:A0 in word mode. See Word/Byte Configuration on page 14. July 16, 2009 S29AS008J_00_08 S29AS008J 17 Data Sheet Table 7.4 Sector Address Tables (Bottom Boot Device) Sector Size (Kbytes/ Kwords) 8/4 8/4 8/4 8/4 8/4 8/4 8/4 8/4 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 Address Range (in hexadecimal) Byte Mode (x8) 00000-01FFF 02000-03FFF 04000-05FFF 06000-07FFF 08000-09FFF 0A000-0BFFF 0C000-0DFFF 0E000-0FFFF 10000-1FFFF 20000-2FFFF 30000-3FFFF 40000-4FFFF 50000-5FFFF 60000-6FFFF 70000-7FFFF 80000-8FFFF 90000-9FFFF A0000-AFFFF B0000-BFFFF C0000-CFFFF D0000-DFFFF E0000-EFFFF F0000-FFFFF Word Mode (x16) 00000-00FFF 01000-01FFF 02000-02FFF 03000-03FFF 04000-04FFF 05000-05FFF 06000-06FFF 07000-07FFF 08000-0FFFF 10000-17FFF 18000-1FFFF 20000-27FFF 28000-2FFFF 30000-37FFF 38000-3FFFF 40000-47FFF 48000-4FFFF 50000-57FFF 58000-5FFFF 60000-67FFF 68000-6FFFF 70000-77FFF 78000-7FFFF Sector SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9 SA10 SA11 SA12 SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20 SA21 SA22 A18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 A17 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 A16 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 A15 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 A14 0 0 0 0 1 1 1 1 X X X X X X X X X X X X X X X A13 0 0 1 1 0 0 1 1 X X X X X X X X X X X X X X X A12 0 1 0 1 0 1 0 1 X X X X X X X X X X X X X X X Note Address range is A18:A-1 in byte mode and A18:A0 in word mode. See the Word/Byte Configuration on page 14. 18 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 7.11 Sector Group Protection/Unprotection The hardware sector group protection feature disables both program and erase operations in any sector group (see Table 7.3 on page 17 to Table 7.6 on page 19). The hardware sector group unprotection feature re-enables both program and erase operations in previously protected sector groups. Sector group protection/unprotection can be implemented via two methods. Sector group protection/unprotection requires VID on the RESET# pin only, and can be implemented either in-system or via programming equipment. Figure 7.1 on page 20 shows the algorithms and Figure 18.11 on page 49 shows the timing diagram. This method uses standard microprocessor bus cycle timing. For sector group unprotect, all unprotected sector groups must first be protected prior to the first sector group unprotect write cycle. The device is shipped with all sector groups unprotected. Spansion offers the option of programming and protecting sector groups at its factory prior to shipping the device through Spansion Programming Service. Contact a Spansion representative for details. It is possible to determine whether a sector group is protected or unprotected. See Autoselect Mode on page 16 for details. Table 7.5 AS008J Top Boot Device Sector/Sector Group Protection Sector / Sector Block SA0-SA3 SA4-SA7 SA8-SA11 SA12-SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20 SA21 SA22 A18 0 0 1 1 1 1 1 1 1 1 1 1 1 A17 0 1 0 1 1 1 1 1 1 1 1 1 1 A16 X X X 0 1 1 1 1 1 1 1 1 1 A15 X X X X 0 1 1 1 1 1 1 1 1 A14 X X X X X 0 0 0 0 1 1 1 1 A13 X X X X X 0 0 1 1 0 0 1 1 A12 X X X X X 0 1 0 1 0 1 0 1 Sector / Sector Block Size 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 128 (2x64) Kbytes 64 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes Table 7.6 AS008J Bottom Boot Device Sector/Sector Group Protection Sector / Sector Block SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9-SA10 SA11-SA14 SA15-SA18 SA19-SA22 A18 0 0 0 0 0 0 0 0 0 0 0 1 1 A17 0 0 0 0 0 0 0 0 0 0 1 0 1 A16 0 0 0 0 0 0 0 0 0 1 X X X A15 0 0 0 0 0 0 0 0 1 X X X X A14 0 0 0 0 1 1 1 1 X X X X X A13 0 0 1 1 0 0 1 1 X X X X X A12 0 1 0 1 0 1 0 1 X X X X X Sector / Sector Block Size 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 64 Kbytes 128 (2x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes July 16, 2009 S29AS008J_00_08 S29AS008J 19 Data Sheet Figure 7.1 In-System Sector Group Protect/Unprotect Algorithms START PLSCNT = 1 RESET# = VID Wait 1 s Protect all sectors: The indicated portion of the sector group protect algorithm must be performed for all unprotected sector group prior to issuing the first sector group unprotect address START PLSCNT = 1 RESET# = VID Wait 1 s Temporary Sector Group Unprotect Mode No First Write Cycle = 60h? Yes Set up sector address No First Write Cycle = 60h? Yes No All sectors protected? Yes Set up first sector group address Sector Group Unprotect: Write 60h to sector address with A6 = 1, A1 = 1, A0 = 0 Temporary Sector Group Unprotect Mode Sector Group Protect: Write 60h to sector address with A6 = 0, A3 = A2 = 0, A1 = 1, A0 = 0 Wait 100 s Verify Sector Group Protect: Write 40h to sector address with A6 = 0, A3 = A2 = 0, A1 = 1, A0 = 0 Increment PLSCNT Reset PLSCNT = 1 Wait 10 ms Verify Sector Group Unprotect: Write 40h to sector address with A6 = 1, A1 = 1, A0 = 0 Read from sector address with A6 = 1, A3 = A2 = 0, A1 = 1, A0 = 0 No Set up next sector address Read from sector address with A6 = 0, A3 = A2 = 0, A1 = 1, A0 = 0 No No PLSCNT = 25? Yes Data = 01h? Increment PLSCNT Yes PLSCNT = 1000? Yes No Data = 00h? Yes Yes Device failed Protect another sector? No Remove VID from RESET# Device failed Last sector group verified? Yes No Sector Group Protect Algorithm Write reset command Sector Group Protect complete Sector Group Unprotect Algorithm Remove VID from RESET# Write reset command Sector Group Unprotect complete Note 1. If WP# = VIL, the top or bottom two address sectors remains protected for boot sector devices 20 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 7.12 Temporary Sector Group Unprotect This feature allows temporary unprotection of previously protected sectors to change data in-system. The Sector Group Unprotect mode is activated by setting the RESET# pin to VID. During this mode, formerly protected sectors can be programmed or erased by selecting the sector addresses. Once VID is removed from the RESET# pin, all the previously protected sectors are protected again. Figure 7.2 shows the algorithm, and Figure 18.10 on page 49 shows the timing diagrams, for this feature. If the WP# pin is at VIL, the sectors protected by the WP# input will remain protected during the Temporary Sector Group Unprotect mode. Figure 7.2 Temporary Sector Group Unprotect Operation START RESET# = VID (Note 1) Perform Erase or Program Operations RESET# = VIH Temporary Sector Group Unprotect Completed (Note 2) Notes 1. All protected sector groups unprotected. 2. All previously protected sector groups are protected once again. 7.13 Write Protect (WP#) The Write Protect function provides a hardware method of protecting certain boot sectors without using VID. This function is one of two provided by the WP# pin. If the system asserts VIL on the WP# pin, the device disables program and erase functions in the two outermost 8-Kbyte boot sectors independently of whether those sectors were protected or unprotected using the method described in Section 7.11, Sector Group Protection/Unprotection on page 19. The two outermost 8-Kbyte boot sectors are the two sectors containing the lowest addresses in a bottom-boot-configured device, or the two sectors containing the highest addresses in a top-boot-configured device. If the system asserts VIH on the WP# pin, the device reverts to whether the two outermost 8-KByte boot sectors were last set to be protected or unprotected. That is, sector group protection or unprotection for these two sectors depends on whether they were last protected or unprotected using the method described in Section 7.11. The WP# contains an internal pull-up; when unconnected, WP is at VIH. July 16, 2009 S29AS008J_00_08 S29AS008J 21 Data Sheet 7.14 Hardware Data Protection The command sequence requirement of unlock cycles for programming or erasing provides data protection against inadvertent writes (refer to Table 11.1 on page 33 for command definitions). In addition, the following hardware data protection measures prevent accidental erasure or programming, which might otherwise be caused by spurious system level signals during VCC power-up and power-down transitions, or from system noise. 7.14.1 Low VCC Write Inhibit When VCC is less than VLKO, the device does not accept any write cycles. This protects data during VCC power-up and power-down. The command register and all internal program/erase circuits are disabled, and the device resets. Subsequent writes are ignored until VCC is greater than VLKO. The system must provide the proper signals to the control pins to prevent unintentional writes when VCC is greater than VLKO. 7.14.2 Write Pulse Glitch Protection Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write cycle. 7.14.3 Logical Inhibit Write cycles are inhibited by holding any one of OE# = VIL, CE# = VIH or WE# = VIH. To initiate a write cycle, CE# and WE# must be a logical zero (VIL) while OE# is a logical one (VIH). 7.14.4 Power-Up Write Inhibit If WE# = CE# = VIL and OE# = VIH during power up, the device does not accept commands on the rising edge of WE#. The internal state machine is automatically reset to reading array data on power-up. 22 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 8. Secured Silicon Sector Flash Memory Region The Secured Silicon Sector feature provides a 256-byte Flash memory region that enables permanent part identification through an Electronic Serial Number (ESN). The Secured Silicon Sector uses a Secured Silicon Sector Indicator Bit (DQ7) to indicate whether or not the Secured Silicon Sector is locked when shipped from the factory. This bit is permanently set at the factory and cannot be changed, which prevents cloning of a factory-locked part. This ensures the security of the ESN once the product is shipped to the field. Spansion offers the device with the Secured Silicon Sector either factory-locked or customer-lockable. The factory-locked version is always protected when shipped from the factory, and has the Secured Silicon Sector Indicator Bit permanently set to a 1. The customer-lockable version is shipped with the Secured Silicon Sector group unprotected, allowing customers to utilize the that sector in any manner they choose. The customer-lockable version has the Secured Silicon Sector Indicator Bit permanently set to a 0. Thus, the Secured Silicon Sector Indicator Bit prevents customer-lockable devices from being used to replace devices that are factory locked. The system accesses the Secured Silicon Sector through a command sequence (see Enter Secured Silicon Sector/Exit Secured Silicon Sector Command Sequence on page 29). After the system writes the Enter Secured Silicon Sector command sequence, it may read the Secured Silicon Sector by using the addresses normally occupied by the boot sectors. This mode of operation continues until the system issues the Exit Secured Silicon Sector command sequence, or until power is removed from the device. On power-up, or following a hardware reset, the device reverts to sending commands to the boot sectors. 8.1 Factory Locked: Secured Silicon Sector Programmed and Protected at the Factory In a factory locked device, the Secured Silicon Sector is protected when the device is shipped from the factory. The Secured Silicon Sector cannot be modified in any way. The device is available pre-programmed with one of the following: A random, secure ESN only. Customer code through the ExpressFlash service. Both a random, secure ESN and customer code through the ExpressFlash service. In devices that have an ESN, a Bottom Boot device has the 16-byte (8-word) ESN in sector 0 at addresses 00000h-0000Fh in byte mode (or 00000h-00007h in word mode). In the Top Boot device, the ESN is in sector 22 at addresses FFFF0h-FFFFFh in byte mode (or 7FFF8h-7FFFFh in word mode). Customers may opt to have their code programmed by Spansion through the Spansion ExpressFlash service. Spansion programs the customer's code, with or without the random ESN. The devices are then shipped from the Spansion factory with the Secured Silicon Sector permanently locked. Contact a Spansion representative for details on using the Spansion ExpressFlash service. 8.2 Customer Lockable: Secured Silicon Sector NOT Programmed or Protected at the Factory The customer lockable version allows the Secured Silicon Sector to be programmed once, and then permanently locked after it ships from Spansion. Note that unlock bypass functions are not available when programming the Secured Silicon Sector. The Secured Silicon Sector area can be protected using the following procedures: Write the three-cycle Enter Secured Silicon Region command sequence, and then follow the in-system sector group protect algorithm as shown in Figure 7.1 on page 20, substituting the sector group address with the Secured Silicon Sector group address (A0=0, A1=1, A2=0, A3=1, A4=1, A5=0, A6=0, A7=0). This allows in-system protection of the Secured Silicon Sector without raising any device pin to a high voltage. Note that this method is only applicable to the Secured Silicon Sector. To verify the protect/unprotect status of the Secured Silicon Sector, follow the algorithm shown in Figure 8.1 on page 24. Once the Secured Silicon Sector is locked and verified, the system must write the Exit Secured Silicon Sector Region command sequence to return to reading and writing the remainder of the array. July 16, 2009 S29AS008J_00_08 S29AS008J 23 Data Sheet The Secured Silicon Sector protection must be used with caution since, once protected, there is no procedure available for unprotecting the Secured Silicon Sector area, and none of the bits in the Secured Silicon Sector memory space can be modified in any way. Figure 8.1 Secured Silicon Sector Protect Verify START If data = 00h, Secured Silicon Sector is unprotected. If data = 01h, Secured Silicon Sector is protected. Remove VID from RESET# RESET# = VID Wait 1 ms Write 60h to any address Write 40h to Secured Silicon Sector address with A0=0, A1=1, A2=0, A3=1, A4=1, A5=0, A6=0, A7=0 Read from Secured Silicon Sector address with A0=0, A1=1 A2=0, A3=1, A4=1 A5=0, A6=0, A7=0 Write reset command Secured Silicon Sector Protect Verify complete 24 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 9. Common Flash Memory Interface (CFI) The Common Flash Interface (CFI) specification outlines device and host system software interrogation handshake, which allows specific vendor-specified software algorithms to be used for entire families of devices. Software support can then be device-independent, JEDEC ID-independent, and forward- and backward-compatible for the specified flash device families. Flash vendors can standardize their existing interfaces for long-term compatibility. This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address 55h in word mode (or address AAh in byte mode), any time the device is ready to read array data. The system can read CFI information at the addresses given in Table 9.1 to Table 9.4 on page 27. In word mode, the upper address bits (A7-MSB) must be all zeros. To terminate reading CFI data, the system must write the reset command. The system can also write the CFI query command when the device is in the autoselect mode. The device enters the CFI query mode, and the system can read CFI data at the addresses given in Table 9.1 to Table 9.4 on page 27. The system must write the reset command to return the device to the autoselect mode. For further information, please refer to the CFI Specification and CFI Publication 100, available via the World Wide Web at http://www.amd.com/products/nvd/overview/cfi.html. Alternatively, contact a Spansion representative for copies of these documents. Table 9.1 CFI Query Identification String Addresses (Word Mode) 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah Addresses (Byte Mode) 20h 22h 24h 26h 28h 2Ah 2Ch 2Eh 30h 32h 34h Data 0051h 0052h 0059h 0002h 0000h 0040h 0000h 0000h 0000h 0000h 0000h Description Query Unique ASCII string "QRY" Primary OEM Command Set Address for Primary Extended Table Alternate OEM Command Set (00h = none exists) Address for Alternate OEM Extended Table (00h = none exists) Table 9.2 System Interface String Addresses (Word Mode) 1Bh 1Ch 1Dh 1Eh 1Fh 20h 21h 22h 23h 24h 25h 26h Addresses (Byte Mode) 36h 38h 3Ah 3Ch 3Eh 40h 42h 44h 46h 48h 4Ah 4Ch Data 0017h 0019h 0000h 0000h 0003h 0000h 0009h 0000h 0005h 0000h 0004h 0000h Description VCC Min. (write/erase) D7-D4: volt, D3-D0: 100 millivolt VCC Max. (write/erase) D7-D4: volt, D3-D0: 100 millivolt VPP Min. voltage (00h = no VPP pin present) VPP Max. voltage (00h = no VPP pin present) Typical timeout per single byte/word write 2N s Typical timeout for Min. size buffer write 2N s (00h = not supported) Typical timeout per individual block erase 2N ms Typical timeout for full chip erase 2N ms (00h = not supported) Max. timeout for byte/word write 2N times typical Max. timeout for buffer write 2N times typical Max. timeout per individual block erase 2N times typical Max. timeout for full chip erase 2N times typical (00h = not supported) July 16, 2009 S29AS008J_00_08 S29AS008J 25 Data Sheet Table 9.3 Device Geometry Definition Addresses (Word Mode) 27h 28h 29h 2Ah 2Bh 2Ch 2Dh 2Eh 2Fh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch Addresses (Byte Mode) 4Eh 50h 52h 54h 56h 58h 5Ah 5Ch 5Eh 60h 62h 64h 66h 68h 6Ah 6Ch 6Eh 70h 72h 74h 76h 78h Data 0014h 0002h 0000h 0000h 0000h 0002h 0007h 0000h 0020h 0000h 000Eh 0000h 0000h 0001h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h Device Size = 2N byte Flash Device Interface description (refer to CFI publication 100) Max. number of byte in multi-byte write = 2N (00h = not supported) Number of Erase Block Regions within device Erase Block Region 1 Information (refer to the CFI specification or CFI publication 100) Description Erase Block Region 2 Information Erase Block Region 3 Information Erase Block Region 4 Information 26 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Table 9.4 Primary Vendor-Specific Extended Query Addresses (Word Mode) 40h 41h 42h 43h 44h 45h Addresses (Byte Mode) 80h 82h 84h 86h 88h 8Ah Data 0050h 0052h 0049h 0031h 0033h 000Ch Query-unique ASCII string "PRI" Major version number, ASCII Minor version number, ASCII Address Sensitive Unlock 0 = Required 1 = Not Required Erase Suspend 0 = Not Supported 1 = To Read Only 2 = To Read & Write 47h 8Eh 0001h Sector Group Protect 0 = Not Supported X = Number of sectors in smallest sector group 48h 90h 0001h Sector Group Temporary Unprotect 00 = Not Supported 01 = Supported Sector Group Protect/Unprotect scheme 01 = 29F040 mode 49h 92h 0004h 02 = 29F016 mode 03 = 29F400 mode 04 = 29LV800A mode 4Ah 94h 0000h Simultaneous Operation 00 = Not Supported 01 = Supported 4Bh 96h 0000h Burst Mode Type 00 = Not Supported 01 = Supported Page Mode Type 00 = Not Supported 01 = 4 Word Page 02 = 8 Word Page ACC (Acceleration) Supply Minimum 00 = Not Supported D7-D4: Volt D3-D0: 100 mV ACC (Acceleration) Supply Maximum 00 = Not Supported D7-D4: Volt D3-D0: 100 mV 4Fh 9Eh 00XXh WP# Protection 02 = Bottom Boot Device with WP Protect 03 = Top Boot Device with WP Protect Program Suspend 50h A0h 0000h 00 = Not Supported 01 = Supported Description 46h 8Ch 0002h 4Ch 98h 0000h 4Dh 9Ah 0000h 4Eh 9Ch 0000h July 16, 2009 S29AS008J_00_08 S29AS008J 27 Data Sheet 10. Command Definitions Writing specific address and data commands or sequences into the command register initiates device operations. Table 11.1 on page 33 defines the valid register command sequences. Writing incorrect address and data values or writing them in the improper sequence resets the device to reading array data. All addresses are latched on the falling edge of WE# or CE#, whichever happens later. All data is latched on the rising edge of WE# or CE#, whichever happens first. Refer to the appropriate timing diagrams in AC Characteristics on page 43. 10.1 Reading Array Data The device is automatically set to reading array data after device power-up. No commands are required to retrieve data. The device is also ready to read array data after completing an Embedded Program or Embedded Erase algorithm. After the device accepts an Erase Suspend command, the device enters the Erase Suspend mode. The system can read array data using the standard read timings, except that if it reads at an address within erasesuspended sectors, the device outputs status data. After completing a programming operation in the Erase Suspend mode, the system may once again read array data with the same exception. See Erase Suspend/ Erase Resume Commands on page 31 for more information on this mode. The system must issue the reset command to re-enable the device for reading array data if DQ5 goes high, or while in the autoselect mode. See Reset Command on page 28. See also Requirements for Reading Array Data on page 14 for more information. The Read Operations on page 43 provides the read parameters, and Figure 18.1 on page 43 shows the timing diagram. 10.2 Reset Command Writing the reset command to the device resets the device to reading array data. Address bits are don't care for this command. The reset command may be written between the sequence cycles in an erase command sequence before erasing begins. This resets the device to reading array data. Once erasure begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in a program command sequence before programming begins. This resets the device to reading array data (also applies to programming in Erase Suspend mode). Once programming begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in an autoselect command sequence. Once in the autoselect mode, the reset command must be written to return to reading array data (also applies to autoselect during Erase Suspend). If DQ5 goes high during a program or erase operation, writing the reset command returns the device to reading array data (also applies during Erase Suspend). 10.3 Autoselect Command Sequence The autoselect command sequence allows the host system to access the manufacturer and devices codes, and determine whether or not a sector is protected. Table 11.1 on page 33 shows the address and data requirements. This method is an alternative to that shown in Table 7.2 on page 17, which is intended for PROM programmers and requires VID on address bit A9. The autoselect command sequence is initiated by writing two unlock cycles, followed by the autoselect command. The device then enters the autoselect mode, and the system may read at any address any number of times, without initiating another command sequence. A read cycle at address XX00h retrieves the manufacturer code. A read cycle at address XX01h returns the device code. A read cycle containing a sector address (SA) and the address 02h in word mode (or 04h in byte mode) returns 01h if that sector is protected, or 00h if it is unprotected. Refer to Table 7.3 on page 17 and Table 7.4 on page 18 for valid sector addresses. The system must write the reset command to exit the autoselect mode and return to reading array data. 28 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 10.4 Enter Secured Silicon Sector/Exit Secured Silicon Sector Command Sequence The Secured Silicon Sector region provides a secured data area containing a random, sixteen-byte electronic serial number (ESN). The system can access the Secured Silicon Sector region by issuing the three-cycle Enter Secured Silicon Sector command sequence. The device continues to access the Secured Silicon Sector region until the system issues the four-cycle Exit Secured Silicon Sector command sequence. The Exit Secured Silicon Sector command sequence returns the device to normal operation. Table 11.1 shows the addresses and data requirements for both command sequences. Note that the unlock bypass mode is not available when the device enters the Secured Silicon Sector. For further information, see Secured Silicon Sector Flash Memory Region on page 23. 10.5 Word/Byte Program Command Sequence The system may program the device by word or byte, depending on the state of the BYTE# pin. Programming is a four-bus-cycle operation. The program command sequence is initiated by writing two unlock write cycles, followed by the program set-up command. The program address and data are written next, which in turn initiate the Embedded Program algorithm. The system is not required to provide further controls or timings. The device automatically generates the program pulses and verifies the programmed cell margin. Table 11.1 on page 33 shows the address and data requirements for the byte program command sequence. When the Embedded Program algorithm is complete, the device then returns to reading array data and addresses are no longer latched. The system can determine the status of the program operation by using DQ7, DQ6, or RY/BY#. See Write Operation Status on page 35 for information on these status bits. Any commands written to the device during the Embedded Program Algorithm are ignored. Note that a hardware reset immediately terminates the programming operation. The Byte Program command sequence should be reinitiated once the device has reset to reading array data, to ensure data integrity. Programming is allowed in any sequence and across sector boundaries. A bit cannot be programmed from a 0 back to a 1. Attempting to do so may halt the operation and set DQ5 to 1, or cause the Data# Polling algorithm to indicate the operation was successful. However, a succeeding read will show that the data is still 0. Only erase operations can convert a 0 to a 1. 10.6 Unlock Bypass Command Sequence The unlock bypass feature allows the system to program bytes or words to the device faster than using the standard program command sequence. The unlock bypass command sequence is initiated by first writing two unlock cycles. This is followed by a third write cycle containing the unlock bypass command, 20h. The device then enters the unlock bypass mode. A two-cycle unlock bypass program command sequence is all that is required to program in this mode. The first cycle in this sequence contains the unlock bypass program command, A0h; the second cycle contains the program address and data. Additional data is programmed in the same manner. This mode dispenses with the initial two unlock cycles required in the standard program command sequence, resulting in faster total programming time. Table 11.1 on page 33 shows the requirements for the command sequence. During the unlock bypass mode, only the Unlock Bypass Program and Unlock Bypass Reset commands are valid. To exit the unlock bypass mode, the system must issue the two-cycle unlock bypass reset command sequence. The first cycle must contain the data 90h; the second cycle the data F0h. Addresses are don't care for both cycles. The device then returns to reading array data. Figure 10.1 on page 30 illustrates the algorithm for the program operation. See Erase/Program Operations on page 46 for parameters, and to Figure 18.5 on page 46 for timing diagrams. July 16, 2009 S29AS008J_00_08 S29AS008J 29 Data Sheet Figure 10.1 Program Operation START Write Program Command Sequence Embedded Program algorithm in progress Data Poll from System Verify Data? No Yes No Increment Address Last Address? Yes Programming Completed Note See Table 11.1 on page 33 for program command sequence. 10.7 Chip Erase Command Sequence Chip erase is a six bus cycle operation. The chip erase command sequence is initiated by writing two unlock cycles, followed by a set-up command. Two additional unlock write cycles are then followed by the chip erase command, which in turn invokes the Embedded Erase algorithm. The device does not require the system to preprogram prior to erase. The Embedded Erase algorithm automatically preprograms and verifies the entire memory for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. Table 11.1 on page 33 shows the address and data requirements for the chip erase command sequence. Any commands written to the chip during the Embedded Erase algorithm are ignored. Note that a hardware reset during the chip erase operation immediately terminates the operation. The Chip Erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. The system can determine the status of the erase operation by using DQ7, DQ6, DQ2, or RY/BY#. See Write Operation Status on page 35 for information on these status bits. When the Embedded Erase algorithm is complete, the device returns to reading array data and addresses are no longer latched. Figure 10.2 on page 32 illustrates the algorithm for the erase operation. See Erase/Program Operations on page 46 for parameters, and Figure 18.6 on page 47 for timing diagrams. 30 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 10.8 Sector Erase Command Sequence Sector erase is a six bus cycle operation. The sector erase command sequence is initiated by writing two unlock cycles, followed by a set-up command. Two additional unlock write cycles are then followed by the address of the sector to be erased, and the sector erase command. Table 11.1 on page 33 shows the address and data requirements for the sector erase command sequence. The device does not require the system to preprogram the memory prior to erase. The Embedded Erase algorithm automatically programs and verifies the sector for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. After the command sequence is written, a sector erase time-out of 50 s begins. During the time-out period, additional sector addresses and sector erase commands may be written. Loading the sector erase buffer may be done in any sequence, and the number of sectors may be from one sector to all sectors. The time between these additional cycles must be less than 50 s, otherwise the last address and command might not be accepted, and erasure may begin. It is recommended that processor interrupts be disabled during this time to ensure all commands are accepted. The interrupts can be re-enabled after the last Sector Erase command is written. If the time between additional sector erase commands can be assumed to be less than 50 s, the system need not monitor DQ3. Any command other than Sector Erase or Erase Suspend during the time-out period resets the device to reading array data. The system must rewrite the command sequence and any additional sector addresses and commands. The system can monitor DQ3 to determine if the sector erase timer has timed out. (See DQ3: Sector Erase Timer on page 39.) The time-out begins from the rising edge of the final WE# pulse in the command sequence. Once the sector erase operation has begun, only the Erase Suspend command is valid. All other commands are ignored. Note that a hardware reset during the sector erase operation immediately terminates the operation. The Sector Erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. When the Embedded Erase algorithm is complete, the device returns to reading array data and addresses are no longer latched. The system can determine the status of the erase operation by using DQ7, DQ6, DQ2, or RY/BY#. (Refer to Write Operation Status on page 35 for information on these status bits.) Figure 10.2 on page 32 illustrates the algorithm for the erase operation. Refer to Erase/Program Operations on page 46 for parameters, and to Figure 18.6 on page 47 for timing diagrams. 10.9 Erase Suspend/Erase Resume Commands The Erase Suspend command allows the system to interrupt a sector erase operation and then read data from, or program data to, any sector not selected for erasure. This command is valid only during the sector erase operation, including the 50 s time-out period during the sector erase command sequence. The Erase Suspend command is ignored if written during the chip erase operation or Embedded Program algorithm. Writing the Erase Suspend command during the Sector Erase time-out immediately terminates the time-out period and suspends the erase operation. Addresses are don't-cares when writing the Erase Suspend command. When the Erase Suspend command is written during a sector erase operation, the device requires a maximum of 35 s to suspend the erase operation. However, when the Erase Suspend command is written during the sector erase time-out, the device immediately terminates the time-out period and suspends the erase operation. After the erase operation has been suspended, the system can read array data from or program data to any sector not selected for erasure. (The device "erase suspends" all sectors selected for erasure.) Normal read and write timings and command definitions apply. Reading at any address within erase-suspended sectors produces status data on DQ7-DQ0. The system can use DQ7, or DQ6 and DQ2 together, to determine if a sector is actively erasing or is erase-suspended. See Write Operation Status on page 35 for information on these status bits. After an erase-suspended program operation is complete, the system can once again read array data within non-suspended sectors. The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just as in the standard program operation. See Write Operation Status on page 35 for more information. July 16, 2009 S29AS008J_00_08 S29AS008J 31 Data Sheet The system may also write the autoselect command sequence when the device is in the Erase Suspend mode. The device allows reading autoselect codes even at addresses within erasing sectors, since the codes are not stored in the memory array. When the device exits the autoselect mode, the device reverts to the Erase Suspend mode, and is ready for another valid operation. See Autoselect Command Sequence on page 28 for more information. The system must write the Erase Resume command (address bits are don't care) to exit the erase suspend mode and continue the sector erase operation. Further writes of the Resume command are ignored. Another Erase Suspend command can be written after the device has resumed erasing. Figure 10.2 Erase Operation START Write Erase Command Sequence Data Poll from System Embedded Erase algorithm in progress No Data = FFh? Yes Erasure Completed Notes 1. See Table 11.1 on page 33 for erase command sequence. 2. See DQ3: Sector Erase Timer on page 39 for more information. 32 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 11. Command Definitions Table 11.1 S29AS008J Command Definitions (Word Mode) Command Sequence (Note 1) Read (Note 6) Reset (Note 7) Manufacturer ID Device ID, Top Boot Block Device ID, Bottom Boot Block Secured Silicon Sector Factory Protect, Top Boot (Note 9) Secured Silicon Sector Factory Protect, Bottom Boot (Note 9) Sector Group Protect Verify (Note 10) Enter Secured Silicon Sector Exit Secured Silicon Sector CFI Query (Note 11) Program Unlock Bypass Unlock Bypass Program (Note 12) Unlock Bypass Reset (Note 13) Chip Erase Sector Erase Erase Suspend (Note 14) Erase Resume (Note 15) Legend X = Don't care RA = Address of the memory location to be read. RD = Data read from location RA during read operation. PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. Notes 1. See Table 7.1 on page 14 for description of bus operations. 2. All values are in hexadecimal. 3. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. 4. Data bits DQ15-DQ8 are don't cares for unlock and command cycles. 5. Address bits A18-A11 are don't cares for unlock and command cycles, unless SA or PA required. 6. No unlock or command cycles required when reading array data. 7. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high (while the device is providing status data). 8. The fourth cycle of the autoselect command sequence is a read cycle. 9. For top boot, 89h = factory locked, 09h = not factory locked. For bottom boot, 91h = factory locked, 11h = not factory locked. 10. The data is 00h for an unprotected sector and 01h for a protected sector. See Autoselect Command Sequence on page 28 for more information. 11. Command is valid when device is ready to read array data or when device is in autoselect mode. 12. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 13. The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass mode. F0 is also acceptable. 14. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 15. The Erase Resume command is valid only during the Erase Suspend mode. PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A18-A12 uniquely select any sector. Cycles Bus Cycles (Notes 2-5) First Addr RA XXX 555 555 555 555 555 555 555 555 55 555 555 XXX XXX 555 555 XXX XXX Data RD F0 AA AA AA AA AA AA AA AA 98 AA AA A0 90 AA AA B0 30 2AA 2AA PA XXX 2AA 2AA 55 55 PD F0 55 55 555 555 80 80 555 555 AA AA 2AA 2AA 55 55 555 SA 10 30 555 555 A0 20 PA PD 2AA 2AA 2AA 2AA 2AA 2AA 2AA 2AA 55 55 55 55 55 55 55 55 555 555 555 555 555 555 555 555 90 90 90 90 90 90 88 90 XXX 00 X00 X01 X01 X03 X03 (SA)X02 01 227E 227E 0089/0009 0091/0011 XX00/XX01 X0E X0E 2204 2204 X0F X0F 2204 2203 Second Addr Data Third Addr Data Addr Fourth Data Fifth Addr Data Sixth Addr Data 1 1 4 6 6 4 4 4 3 4 1 4 3 2 2 6 6 1 1 July 16, 2009 S29AS008J_00_08 Autoselect (Note 8) S29AS008J 33 Data Sheet Table 11.2 S29AS008J Command Definitions (Byte Mode) Command Sequence (Note 1) Read (Note 6) Reset (Note 7) Manufacturer ID Device ID, Top Boot Block Autoselect (Note 8) Device ID, Bottom Boot Block Secured Silicon Sector Factory Protect, Top Boot (Note 9) Secured Silicon Sector Factory Protect, Bottom Boot (Note 9) Sector Group Protect Verify (Note 10) Enter Secured Silicon Sector Exit Secured Silicon Sector CFI Query (Note 11) Program Unlock Bypass Unlock Bypass Program (Note 12) Unlock Bypass Reset (Note 13) Chip Erase Sector Erase Erase Suspend (Note 14) Erase Resume (Note 15) Legend X = Don't care RA = Address of the memory location to be read. RD = Data read from location RA during read operation. PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. Notes 1. See Table 7.1 on page 14 for description of bus operations. 2. All values are in hexadecimal. 3. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. 4. Data bits DQ15-DQ8 are don't cares for unlock and command cycles. 5. Address bits A18-A11 are don't cares for unlock and command cycles, unless SA or PA required. 6. No unlock or command cycles required when reading array data. 7. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high (while the device is providing status data). 8. The fourth cycle of the autoselect command sequence is a read cycle. 9. For top boot, 89h = factory locked, 09h = not factory locked. For bottom boot, 91h = factory locked, 11h = not factory locked. 10. The data is 00h for an unprotected sector and 01h for a protected sector. See Autoselect Command Sequence on page 28 for more information. 11. Command is valid when device is ready to read array data or when device is in autoselect mode. 12. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 13. The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass mode. F0 is also acceptable. 14. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 15. The Erase Resume command is valid only during the Erase Suspend mode. PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A18-A12 uniquely select any sector. Cycles Bus Cycles (Notes 2-5) First Addr RA XXX AAA AAA Data RD F0 AA AA 555 555 55 55 AAA AAA 90 90 X00 X02 01 7E X1C 04 X1E 04 Second Addr Data Third Addr Data Addr Fourth Data Fifth Addr Data Sixth Addr Data 1 1 4 6 6 4 4 4 3 4 1 4 3 2 2 6 6 1 1 AAA AAA AAA AAA AAA AAA AA AAA AAA XXX XXX AAA AAA XXX XXX AA AA AA AA AA AA 98 AA AA A0 90 AA AA B0 30 555 555 555 555 555 555 55 55 55 55 55 55 AAA AAA AAA AAA AAA AAA 90 90 90 90 88 90 X02 X06 X06 (SA)X04 7E 89/09 91/11 00/01 X1C 04 X1E 03 XXX 00 555 555 PA XXX 555 555 55 55 PD F0 55 55 AAA AAA A0 20 PA PD AAA AAA 80 80 AAA AAA AA AA 555 555 55 55 AAA SA 10 30 34 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 12. Write Operation Status The device provides several bits to determine the status of a write operation: DQ2, DQ3, DQ5, DQ6, DQ7, and RY/BY#. Table 12.1 on page 39 and the following subsections describe the functions of these bits. DQ7, RY/BY#, and DQ6 each offer a method for determining whether a program or erase operation is complete or in progress. These three bits are discussed first. 12.1 DQ7: Data# Polling The Data# Polling bit, DQ7, indicates to the host system whether an Embedded Algorithm is in progress or completed, or whether the device is in Erase Suspend. Data# Polling is valid after the rising edge of the final WE# pulse in the program or erase command sequence. During the Embedded Program algorithm, the device outputs on DQ7 the complement of the datum programmed to DQ7. This DQ7 status also applies to programming during Erase Suspend. When the Embedded Program algorithm is complete, the device outputs the datum programmed to DQ7. The system must provide the program address to read valid status information on DQ7. If a program address falls within a protected sector, Data# Polling on DQ7 is active for approximately 1 s, then the device returns to reading array data. During the Embedded Erase algorithm, Data# Polling produces a 0 on DQ7. When the Embedded Erase algorithm is complete, or if the device enters the Erase Suspend mode, Data# Polling produces a 1 on DQ7. This is analogous to the complement/true datum output described for the Embedded Program algorithm: the erase function changes all the bits in a sector to 1; prior to this, the device outputs the complement, or 0. The system must provide an address within any of the sectors selected for erasure to read valid status information on DQ7. After an erase command sequence is written, if all sectors selected for erasing are protected, Data# Polling on DQ7 is active for approximately 100 s, then the device returns to reading array data. If not all selected sectors are protected, the Embedded Erase algorithm erases the unprotected sectors, and ignores the selected sectors that are protected. When the system detects DQ7 has changed from the complement to true data, it can read valid data (at DQ7-DQ0 in byte mode or DQ15-DQ0 in word mode) on the following read cycles. This is because DQ7 may change asynchronously with DQ0-DQ6 while Output Enable (OE#) is asserted low. Figure 18.7 on page 47, illustrates this. Table 12.1 on page 39 shows the outputs for Data# Polling on DQ7. Figure 12.2 on page 38 shows the Data# Polling algorithm. July 16, 2009 S29AS008J_00_08 S29AS008J 35 Data Sheet Figure 12.1 Data# Polling Algorithm START Read DQ7-DQ0 Addr = VA DQ7 = Data? Yes No No DQ5 = 1? Yes Read DQ7-DQ0 Addr = VA DQ7 = Data? Yes No FAIL PASS Notes 1. VA = Valid address for programming. During a sector erase operation, a valid address is an address within any sector selected for erasure. During chip erase, a valid address is any non-protected sector address. 2. DQ7 should be rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5. 12.2 RY/BY#: Ready/Busy# The RY/BY# is a dedicated, open-drain output pin that indicates whether an Embedded Algorithm is in progress or complete. The RY/BY# status is valid after the rising edge of the final WE# pulse in the command sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a pull-up resistor to VCC. If the output is low (Busy), the device is actively erasing or programming. (This includes programming in the Erase Suspend mode.) If the output is high (Ready), the device is ready to read array data (including during the Erase Suspend mode), or is in the standby mode. Table 12.1 on page 39 shows the outputs for RY/BY#. Figures Figure 18.1 on page 43, Figure 18.2 on page 44, Figure 18.5 on page 46 and Figure 18.6 on page 47 shows RY/BY# for read, reset, program, and erase operations, respectively. 36 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 12.3 DQ6: Toggle Bit I Toggle Bit I on DQ6 indicates whether an Embedded Program or Erase algorithm is in progress or complete, or whether the device has entered the Erase Suspend mode. Toggle Bit I may be read at any address, and is valid after the rising edge of the final WE# pulse in the command sequence (prior to the program or erase operation), and during the sector erase time-out. During an Embedded Program or Erase algorithm operation, successive read cycles to any address cause DQ6 to toggle. (The system may use either OE# or CE# to control the read cycles.) When the operation is complete, DQ6 stops toggling. After an erase command sequence is written, if all sectors selected for erasing are protected, DQ6 toggles for approximately 100 s, then returns to reading array data. If not all selected sectors are protected, the Embedded Erase algorithm erases the unprotected sectors, and ignores the selected sectors that are protected. The system can use DQ6 and DQ2 together to determine whether a sector is actively erasing or is erasesuspended. When the device is actively erasing (that is, the Embedded Erase algorithm is in progress), DQ6 toggles. When the device enters the Erase Suspend mode, DQ6 stops toggling. However, the system must also use DQ2 to determine which sectors are erasing or erase-suspended. Alternatively, the system can use DQ7 (see DQ7: Data# Polling on page 35). If a program address falls within a protected sector, DQ6 toggles for approximately 1 s after the program command sequence is written, then returns to reading array data. DQ6 also toggles during the erase-suspend-program mode, and stops toggling once the Embedded Program algorithm is complete. Table 12.1 on page 39 shows the outputs for Toggle Bit I on DQ6. Figure 12.2 on page 38 shows the toggle bit algorithm in flowchart form, and Reading Toggle Bits DQ6/DQ2 on page 38 explains the algorithm. Figure 18.8 on page 48 shows the toggle bit timing diagrams. Figure 18.9 on page 48 shows the differences between DQ2 and DQ6 in graphical form. See also DQ2: Toggle Bit II on page 37. 12.4 DQ2: Toggle Bit II The "Toggle Bit II" on DQ2, when used with DQ6, indicates whether a particular sector is actively erasing (that is, the Embedded Erase algorithm is in progress), or whether that sector is erase-suspended. Toggle Bit II is valid after the rising edge of the final WE# pulse in the command sequence. DQ2 toggles when the system reads at addresses within those sectors that have been selected for erasure. (The system may use either OE# or CE# to control the read cycles.) But DQ2 cannot distinguish whether the sector is actively erasing or is erase-suspended. DQ6, by comparison, indicates whether the device is actively erasing, or is in Erase Suspend, but cannot distinguish which sectors are selected for erasure. Thus, both status bits are required for sector and mode information. Refer to Table 12.1 on page 39 to compare outputs for DQ2 and DQ6. Figure 12.2 on page 38 shows the toggle bit algorithm in flowchart form, and the section Reading Toggle Bits DQ6/DQ2 on page 38 explains the algorithm. See also DQ6: Toggle Bit I on page 37. Figure 18.8 on page 48 shows the toggle bit timing diagram. Figure 18.9 on page 48 shows the differences between DQ2 and DQ6 in graphical form. July 16, 2009 S29AS008J_00_08 S29AS008J 37 Data Sheet 12.5 Reading Toggle Bits DQ6/DQ2 Refer to Figure 12.2 on page 38 for the following discussion. Whenever the system initially begins reading toggle bit status, it must read DQ7-DQ0 at least twice in a row to determine whether a toggle bit is toggling. Typically, the system would note and store the value of the toggle bit after the first read. After the second read, the system would compare the new value of the toggle bit with the first. If the toggle bit is not toggling, the device has completed the program or erase operation. The system can read array data (at DQ7-DQ0 in byte mode or DQ15-DQ0 in word mode) on the following read cycle. However, if after the initial two read cycles, the system determines that the toggle bit is still toggling, the system also should note whether the value of DQ5 is high (see DQ5: Exceeded Timing Limits on page 39). If it is, the system should then determine again whether the toggle bit is toggling, since the toggle bit may have stopped toggling just as DQ5 went high. If the toggle bit is no longer toggling, the device has successfully completed the program or erase operation. If it is still toggling, the device did not complete the operation successfully, and the system must write the reset command to return to reading array data. The remaining scenario is that the system initially determines that the toggle bit is toggling and DQ5 has not gone high. The system may continue to monitor the toggle bit and DQ5 through successive read cycles, determining the status as described in the previous paragraph. Alternatively, it may choose to perform other system tasks. In this case, the system must start at the beginning of the algorithm when it returns to determine the status of the operation (top of Figure 12.2 on page 38). Figure 12.2 Toggle Bit Algorithm START (Note 1) Read DQ7-DQ0 Read DQ7-DQ0 Toggle Bit = Toggle? Yes No No DQ5 = 1? Yes (Notes 1, 2) Read DQ7-DQ0 Twice Toggle Bit = Toggle? No Yes Program/Erase Operation Not Complete, Write Reset Command Notes 1. Read toggle bit twice to determine whether or not it is toggling. See text. 2. Recheck toggle bit because it may stop toggling as DQ5 changes to 1. See text. Program/Erase Operation Complete 38 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 12.6 DQ5: Exceeded Timing Limits DQ5 indicates whether the program or erase time has exceeded a specified internal pulse count limit. Under these conditions DQ5 produces a 1. This is a failure condition that indicates the program or erase cycle was not successfully completed. The DQ5 failure condition may appear if the system tries to program a 1 to a location that is previously programmed to 0. Only an erase operation can change a 0 back to a 1. Under this condition, the device halts the operation, and when the operation has exceeded the timing limits, DQ5 produces a 1. Under both these conditions, the system must issue the reset command to return the device to reading array data. 12.7 DQ3: Sector Erase Timer After writing a sector erase command sequence, the system may read DQ3 to determine whether or not an erase operation has begun. (The sector erase timer does not apply to the chip erase command.) If additional sectors are selected for erasure, the entire time-out also applies after each additional sector erase command. When the time-out is complete, DQ3 switches from 0 to 1. The system may ignore DQ3 if the system can guarantee that the time between additional sector erase commands will always be less than 50 s. See also Sector Erase Command Sequence on page 31. After the sector erase command sequence is written, the system should read the status on DQ7 (Data# Polling) or DQ6 (Toggle Bit I) to ensure the device has accepted the command sequence, and then read DQ3. If DQ3 is 1, the internally controlled erase cycle has begun; all further commands (other than Erase Suspend) are ignored until the erase operation is complete. If DQ3 is 0, the device will accept additional sector erase commands. To ensure the command has been accepted, the system software should check the status of DQ3 prior to and following each subsequent sector erase command. If DQ3 is high on the second status check, the last command might not have been accepted. Table 12.1 shows the outputs for DQ3. Table 12.1 Write Operation Status Operation Standard Mode Embedded Program Algorithm Embedded Erase Algorithm Reading within Erase Suspended Sector Reading within Non-Erase Suspended Sector Erase-Suspend-Program DQ7 (Note 2) DQ7# 0 1 Data DQ7# DQ6 Toggle Toggle No toggle Data Toggle DQ5 (Note 1) 0 0 0 Data 0 DQ3 N/A 1 N/A Data N/A DQ2 (Note 2) No toggle Toggle Toggle Data N/A RY/BY# 0 0 1 1 0 Erase Suspend Mode Notes 1. DQ5 switches to 1 when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits. See DQ5: Exceeded Timing Limits on page 39 for more information. 2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details. July 16, 2009 S29AS008J_00_08 S29AS008J 39 Data Sheet 13. Absolute Maximum Ratings Storage Temperature Plastic Packages Ambient Temperature with Power Applied Voltage with Respect to Ground VCC (Note 1) A9, RESET# (Note 2) All other pins (Note 1) Output Short Circuit Current (Note 3) -0.5 V to +2.0 V -0.5 V to +11.0 V -0.5 V to VCC+0.5 V 200 mA -65C to +150C -65C to +125C Notes 1. Minimum DC voltage on input or I/O pins is -0.5 V. During voltage transitions, input or I/O pins may overshoot VSS to -2.0 V for periods of up to 20 ns. See Figure 14.1 on page 40. Maximum DC voltage on input or I/O pins is VCC +0.5 V. During voltage transitions, input or I/O pins may overshoot to VCC +2.0 V for periods up to 20 ns. See Figure 14.2 on page 40. 2. Minimum DC input voltage on pins A9, OE#, and RESET# is -0.5 V. During voltage transitions, A9 and RESET# may overshoot VSS to -2.0 V for periods of up to 20 ns. See Figure 14.1 on page 40. Maximum DC input voltage on pin A9 is +11.0 V which may overshoot to 12.5 V for periods up to 20 ns. 3. No more than one output may be shorted to ground at a time. Duration of the short circuit should not be greater than one second. 4. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this data sheet is not implied. Exposure of the device to absolute maximum rating conditions for extended periods may affect device reliability. 14. Operating Ranges Description Ambient Temperature (TA) VCC Supply Voltages Industrial (I) Devices Standard Voltage Range Range -40C to +85C 1.65 V to 1.95 V Note Operating ranges define those limits between which the functionality of the device is guaranteed. Figure 14.1 Maximum Negative Overshoot Waveform 20 ns +0.8 V -0.5 V -2.0 V 20 ns 20 ns Figure 14.2 Maximum Positive Overshoot Waveform 20 ns VCC +2.0 V VCC +0.5 V 2.0 V 20 ns 40 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 15. DC Characteristics 15.1 CMOS Compatible Parameter ILI Description Input Load Current WP# Input Load Current ILI A9, RESET# Input Load Current Output Leakage Current Test Conditions VIN = VSS to VCC, VCC = VCC max VCC = VCC max; WP# = VSS0.2 V VCC = VCC max; A9, RESET# = 11.0 V VOUT = VSS to VCC, VCC = VCC max CE# = VIL, OE# = VIH, Byte Mode ICC1 VCC Active Read Current (Note 1) CE# = VIL, OE# = VIH, Word Mode ICC2 ICC3 ICC4 ICC5 VIL VIH VID VOL VOH1 VOH2 VLKO Low VCC Lock-Out Voltage (Note 3) VCC Active Write Current (Notes 2, 3) VCC Standby Current VCC Standby Current During Reset Automatic Sleep Mode (Note 4) Input Low Voltage Input High Voltage Voltage for Autoselect and Temporary Sector Group Unprotect Output Low Voltage Output High Voltage VCC = 1.65 to 1.95 V IOL = 2.0 mA, VCC = VCC min IOH = -2.0 mA, VCC = VCC min IOH = -100 A, VCC = VCC min 0.85 x VCC VCC-0.1 1.2 1.4 CE# = VIL, OE# = VIH CE#, RESET# = VCC0.2 V RESET# = VSS 0.2 V VIH = VCC 0.2 V; VIL = VSS 0.2 V -0.5 0.7 x VCC 9.0 5 MHz 1 MHz 5 MHz 1 MHz 8 2 8 2 20 8 8 15 Min Typ Max 1.0 -15 A 35 1.0 12 4 mA 12 4 30 30 30 70 0.3 x VCC VCC + 0.3 11.0 0.25 V mA A A A Unit ILO Notes 1. The ICC current listed is typically less than 1 mA/MHz, with OE# at VIH. 2. ICC active while Embedded Erase or Embedded Program is in progress. 3. Not 100% tested. 4. Automatic sleep mode enables the low power mode when addresses remain stable for tACC + 30 ns. Typical sleep mode current is 15 A. July 16, 2009 S29AS008J_00_08 S29AS008J 41 Data Sheet 16. Test Conditions Figure 16.1 Test Setup Device Under Test CL Table 16.1 Test Specifications Test Condition Output Load Capacitance, CL (including jig capacitance) Input Rise and Fall Times Input Pulse Levels Input timing measurement reference levels Output timing measurement reference levels 70 100 3 0.0 - 2.0 1.0 1.0 V Unit pF ns 17. Key to Switching Waveforms Waveform Inputs Steady Outputs Changing from H to L Changing from L to H Don't Care, Any Change Permitted Changing, State Unknown Does Not Apply Center Line is High Impedance State (High Z) Figure 17.1 Input Waveforms and Measurement Levels Vcc 0.0 V Input Vcc/2 Measurement Level Vcc/2 Output 42 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 18. AC Characteristics 18.1 Read Operations Parameter JEDEC tAVAV tAVQV tELQV tGLQV tEHQZ tGHQZ Std tRC tACC tCE tOE tDF tDF tOEH tAXQX tOH Description Read Cycle Time (Note 1) Address to Output Delay Chip Enable to Output Delay Output Enable to Output Delay Chip Enable to Output High Z (Note 1) Output Enable to Output High Z (Note 1) Output Enable Hold Time (Note 1) Read Toggle and Data# Polling CE# = VIL OE# = VIL OE# = VIL Test Setup Min Max Max Max Max Max Min Min Min Speed Options 70 70 70 70 25 25 25 0 10 0 ns Unit Output Hold Time From Addresses, CE# or OE#, Whichever Occurs First (Note 1) Notes 1. Not 100% tested. 2. See Figure 16.1 on page 42 and Table 16.1 on page 42 for test specifications. Figure 18.1 Read Operations Timings tRC Addresses Addresses Stable tACC CE# OE# tSR/W tOEH tOE tDF WE# HIGH Z tCE tOH Outputs RESET# RY/BY# Output Valid HIGH Z 0V July 16, 2009 S29AS008J_00_08 S29AS008J 43 Data Sheet 18.2 Hardware Reset (RESET#) Parameter JEDEC Std tREADY tREADY tRP tRH tRPD tRB Note Not 100% tested. Description RESET# Pin Low (During Embedded Algorithms) to Read or Write (See Note) RESET# Pin Low (NOT During Embedded Algorithms) to Read or Write (See Note) RESET# Pulse Width RESET# High Time Before Read (See Note) Min RESET# Low to Standby Mode RY/BY# Recovery Time 20 0 s ns Test Setup Max Max All Speed Options 35 500 500 50 ns Unit s Figure 18.2 RESET# Timings RY/BY# CE#, OE# tRH RESET# tRP tReady Reset Timings NOT during Embedded Algorithms Reset Timings during Embedded Algorithms tReady RY/BY# tRB CE#, OE# RESET# tRP 44 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 18.3 Word/Byte Configuration (BYTE#) Parameter JEDEC Std tELFL/tELFH tFLQZ tFHQV Description CE# to BYTE# Switching Low or High BYTE# Switching Low to Output HIGH Z BYTE# Switching High to Output Active Max Max Min Speed Options 70 5 25 70 ns Unit Figure 18.3 BYTE# Timings for Read Operations CE# OE# BYTE# tELFL BYTE# Switching from word to byte mode DQ0-DQ14 Data Output (DQ0-DQ14) Data Output (DQ0-DQ7) DQ15/A-1 DQ15 Output tFLQZ tELFH Address Input BYTE# BYTE# Switching from byte to word mode DQ0-DQ14 Data Output (DQ0-DQ7) Address Input tFHQV Data Output (DQ0-DQ14) DQ15 Output DQ15/A-1 Figure 18.4 BYTE# Timings for Write Operations CE# The falling edge of the last WE# signal WE# BYTE# tSET (tAS) tHOLD (tAH) Note Refer to Erase/Program Operations on page 46 for tAS and tAH specifications. July 16, 2009 S29AS008J_00_08 S29AS008J 45 Data Sheet 18.4 Erase/Program Operations Parameter JEDEC tAVAV tAVWL tWLAX tDVWH tWHDX Std tWC tAS tAH tDS tDH tOES tGHWL tELWL tWHEH tWLWH tWHWL tGHWL tCS tCH tWP tWPH tSR/W tWHWH1 tWHWH2 tWHWH1 tWHWH2 tVCS tRB tBUSY Notes 1. Not 100% tested. 2. See Erase and Programming Performance on page 51 for more information. Description Write Cycle Time (Note 1) Address Setup Time Address Hold Time Data Setup Time Data Hold Time Output Enable Setup Time Read Recovery Time Before Write (OE# High to WE# Low) CE# Setup Time CE# Hold Time Write Pulse Width Write Pulse Width High Latency Between Read and Write Operations Byte Programming Operation (Note 2) Word Sector Erase Operation (Note 2) VCC Setup Time (Note 1) Recovery Time from RY/BY# Program/Erase Valid to RY/BY# Delay Max Min 0 ns 90 Typ 6 0.5 50 sec s Min Min Speed Options 70 70 0 45 35 0 0 0 0 0 35 20 20 6 s ns ns Unit Figure 18.5 Program Operation Timings Program Command Sequence (last two cycles) tAS tWC Addresses 555h PA tAH CE# OE# tWP WE# tCS tDS Data tDH PD tBUSY RY/BY# tVCS VCC Notes 1. PA = program address, PD = program data, DOUT is the true data at the program address. 2. Illustration shows device in word mode. Read Status Data (last two cycles) PA PA tCH tWHWH1 tWPH A0h Status DOUT tRB 46 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Figure 18.6 Chip/Sector Erase Operation Timings Erase Command Sequence (last two cycles) tWC Addresses 2AAh tAS SA 555h for chip erase Read Status Data VA tAH VA CE# OE# tWP WE# tCS tDS tCH tWPH tWHWH2 tDH Data 55h 30h 10 for Chip Erase In Progress Complete tBUSY RY/BY# tVCS VCC tRB Notes 1. SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see Write Operation Status on page 35). 2. Illustration shows device in word mode. Figure 18.7 Data# Polling Timings (During Embedded Algorithms) tRC Addresses VA tACC tCE CE# tCH OE# tOEH WE# tOH DQ7 High Z VA VA tOE tDF Complement Complement True Valid Data High Z DQ0-DQ6 tBUSY RY/BY# Status Data Status Data True Valid Data Note VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle. July 16, 2009 S29AS008J_00_08 S29AS008J 47 Data Sheet Figure 18.8 Toggle Bit Timings (During Embedded Algorithms) tRC Addresses VA tACC tCE CE# tCH OE# tOEH WE# tOH DQ6/DQ2 tBUSY RY/BY# High Z VA VA VA tOE tDF Valid Status (first read) Valid Status (second read) Valid Status (stops toggling) Valid Data Note VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status read cycle, and array data read cycle. Figure 18.9 DQ2 vs. DQ6 for Erase and Erase Suspend Operations Enter Embedded Erasing WE# Erase Suspend Erase Enter Erase Suspend Program Erase Suspend Program Erase Resume Erase Suspend Read Erase Erase Complete Erase Suspend Read DQ6 DQ2 Note The system may use CE# or OE# to toggle DQ2 and DQ6. DQ2 toggles only when read at an address within an erase-suspended sector. 48 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 18.5 Temporary Sector Group Unprotect Parameter JEDEC Std tVIDR tRSP Note Not 100% tested. Description VID Rise and Fall Time (See Note) RESET# Setup Time for Temporary Sector Group Unprotect Min Min All Speed Options 500 4 Unit ns s Figure 18.10 Temporary Sector Group Unprotect/Timing Diagram 11 V RESET# 0 or 1.95 V tVIDR Program or Erase Command Sequence CE# tVIDR WE# tRSP RY/BY# Figure 18.11 Sector Group Protect/Unprotect Timing Diagram VID VIH RESET# SA, A6, A1, A0 Valid* Sector Group Protect/Unprotect Valid* Verify 40h Sector Group Protect: 150 s Sector Group Unprotect: 15 ms Valid* Data 1 s CE# 60h 60h Status WE# OE# Note For sector group protect, A6 = 0, A1 = 1, A0 = 0. For sector group unprotect, A6 = 1, A1 = 1, A0 = 0. July 16, 2009 S29AS008J_00_08 S29AS008J 49 Data Sheet 18.6 Alternate CE# Controlled Erase/Program Operations Parameter JEDEC tAVAV tAVEL tELAX tDVEH tEHDX Std tWC tAS tAH tDS tDH tOES tGHEL tWLEL tEHWH tELEH tEHEL tGHEL tWS tWH tCP tCPH tSR/W tWHWH1 tWHWH2 Notes 1. Not 100% tested. 2. See Erase and Programming Performance on page 51 for more information. tWHWH1 tWHWH2 Description Write Cycle Time (Note 1) Address Setup Time Address Hold Time Data Setup Time Data Hold Time Output Enable Setup Time Read Recovery Time Before Write (OE# High to WE# Low) WE# Setup Time WE# Hold Time CE# Pulse Width CE# Pulse Width High Latency Between Read and Write Operations Byte Programming Operation (Note 2) Word Sector Erase Operation (Note 2) Typ Typ 6 0.5 sec Min Min Min Min Min Min Min Min Min Min Min Min Typ Speed Options 70 70 0 45 35 0 0 0 0 0 35 20 20 6 s Unit ns ns ns ns ns ns ns ns ns ns ns ns Figure 18.12 Alternate CE# Controlled Write Operation Timings 555 for program 2AA for erase PA for program SA for sector erase 555 for chip erase Data# Polling PA Addresses tWC tWH WE# tGHEL OE# tCP CE# tWS tCPH tDS tDH Data tRH A0 for program 55 for erase PD for program 30 for sector erase 10 for chip erase tAS tAH tWHWH1 or 2 tBUSY DQ7# DOUT RESET# RY/BY# Notes 1. PA = program address, PD = program data, DQ7# = complement of the data written to the device, DOUT = data written to the device. 2. Figure indicates the last two bus cycles of the command sequence. 3. Word mode address used as an example. 50 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 19. Erase and Programming Performance Parameter Sector Erase Time Chip Erase Time Byte Programming Time Word Programming Time Chip Programming Time (Note 3) Byte Mode Word Mode Typ (Note 1) 0.5 11.5 6 6 20 14 150 160 120 Max (Note 2) 10 Unit s s s s s s Excludes system level overhead (Note 5) Comments Excludes 00h programming prior to erasure (Note 4) Notes 1. Typical program and erase times assume the following conditions: 25C, VCC = 1.8 V, 100,000 cycles, checkerboard data pattern. 2. Under worst case conditions of 90C, VCC = 1.65 V, 1,000,000 cycles. 3. The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes program faster than the maximum program times listed. 4. In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure. 5. System-level overhead is the time required to execute the two- or four-bus-cycle sequence for the program command. See Table 11.1 on page 33 for further information on command definitions. 6. The device has a minimum erase and program cycle endurance of 100,000 cycles per sector. 20. Package Pin Capacitance Parameter Symbol CIN Parameter Description Input Capacitance Test Setup VIN = 0 Package TSOP BGA TSOP COUT Output Capacitance VOUT = 0 BGA TSOP CIN2 Control Pin Capacitance VIN = 0 BGA TSOP CIN3 Notes 1. Sampled, not 100% tested. 2. Test conditions TA = 25C, f = 1.0 MHz. WP# Pin Capacitance VIN = 0 BGA Typ 4 4.2 4.5 5.4 5 3.9 8.5 8.5 Max 6 5.0 5.5 6.5 pF 6.5 4.7 10.0 10.0 Unit July 16, 2009 S29AS008J_00_08 S29AS008J 51 Data Sheet 21. Physical Dimensions 21.1 TS 048 - 48-Pin Standard TSOP 2X STANDARD PIN OUT (TOP VIEW) 2 1 N 0.10 2X (N/2 TIPS) 2X 0.10 A2 0.10 REVERSE PIN OUT (TOP VIEW) 3 1 N A SEE DETAIL B B E5 N 2 N +1 2 e 9 A1 C SEATING PLANE 0.08MM (0.0031") M C A-B S N 2 N +1 2 D1 D 0.25 2X (N/2 TIPS) 5 4 B A B SEE DETAIL A b 6 7 WITH PLATING 7 (c) c1 b1 SECTION B-B R (c) GAUGE PLANE BASE METAL e/2 PARALLEL TO SEATING PLANE C 0.25MM (0.0098") BSC X X = A OR B L DETAIL A DETAIL B NOTES: Jedec Symbol A A1 A2 b1 b c1 c D D1 E e L 0 R N MO-142 (D) DD MAX 1.20 0.15 0.05 1.05 1.00 0.95 0.20 0.23 0.17 0.27 0.22 0.17 0.16 0.10 0.21 0.10 19.80 20.00 20.20 18.30 18.40 18.50 11.90 12.00 12.10 0.50 BASIC 0.70 0.50 0.60 8 0 0.20 0.08 48 MIN NOM 1 2 3 4 CONTROLLING DIMENSIONS ARE IN MILLIMETERS (mm). (DIMENSIONING AND TOLERANCING CONFORMS TO ANSI Y14.5M-1982) PIN 1 IDENTIFIER FOR REVERSE PIN OUT (DIE UP). PIN 1 IDENTIFIER FOR REVERSE PIN OUT (DIE DOWN), INK OR LASER MARK. TO BE DETERMINED AT THE SEATING PLANE -C- . THE SEATING PLANE IS DEFINED AS THE PLANE OF CONTACT THAT IS MADE WHEN THE PACKAGE LEADS ARE ALLOWED TO REST FREELY ON A FLAT HORIZONTAL SURFACE. DIMENSIONS D1 AND E DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE MOLD PROTUSION IS 0.15mm (.0059") PER SIDE. DIMENSION b DOES NOT INCLUDE DAMBAR PROTUSION. ALLOWABLE DAMBAR PROTUSION SHALL BE 0.08 (0.0031") TOTAL IN EXCESS OF b DIMENSION AT MAX. MATERIAL CONDITION. MINIMUM SPACE BETWEEN PROTRUSION AND AN ADJACENT LEAD TO BE 0.07 (0.0028"). THESE DIMENSIONS APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.10MM (.0039") AND 0.25MM (0.0098") FROM THE LEAD TIP. LEAD COPLANARITY SHALL BE WITHIN 0.10mm (0.004") AS MEASURED FROM THE SEATING PLANE. DIMENSION "e" IS MEASURED AT THE CENTERLINE OF THE LEADS. 3355 \ 16-038.10c 5 6 7 8 9 Note For reference only. BSC is an ANSI standard for Basic Space Centering. 52 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet 21.2 VBK048--48-Ball Fine-Pitch Ball Grid Array (FBGA) 8.15 mm x 6.15 mm 0.10 (4X) D A D1 6 5 e 7 4 3 2 1 H G F E D C B A E SE E1 PIN A1 CORNER INDEX MARK B 6 b 0.08 M C 0.15 M C A B SD 7 A1 CORNER 10 TOP VIEW BOTTOM VIEW A A1 SEATING PLANE A2 0.10 C C 0.08 C SIDE VIEW NOTES: PACKAGE JEDEC VBK 048 N/A 8.15 mm x 6.15 mm NOM PACKAGE SYMBOL A A1 A2 D E D1 E1 MD ME N b e SD / SE 0.35 MIN --0.18 0.62 NOM ------8.15 BSC. 6.15 BSC. 5.60 BSC. 4.00 BSC. 8 6 48 --0.80 BSC. 0.40 BSC. --0.43 MAX 1.00 --0.76 NOTE OVERALL THICKNESS BALL HEIGHT BODY THICKNESS BODY SIZE BODY SIZE BALL FOOTPRINT BALL FOOTPRINT ROW MATRIX SIZE D DIRECTION ROW MATRIX SIZE E DIRECTION TOTAL BALL COUNT BALL DIAMETER BALL PITCH SOLDER BALL PLACEMENT DEPOPULATED SOLDER BALLS 6 7 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994. 2. ALL DIMENSIONS ARE IN MILLIMETERS. 3. BALL POSITION DESIGNATION PER JESD 95-1, SPP-010 (EXCEPT AS NOTED). 4. e REPRESENTS THE SOLDER BALL GRID PITCH. 5. SYMBOL "MD" IS THE BALL ROW MATRIX SIZE IN THE "D" DIRECTION. SYMBOL "ME" IS THE BALL COLUMN MATRIX SIZE IN THE "E" DIRECTION. N IS THE TOTAL NUMBER OF SOLDER BALLS. DIMENSION "b" IS MEASURED AT THE MAXIMUM BALL DIAMETER IN A PLANE PARALLEL TO DATUM C. SD AND SE ARE MEASURED WITH RESPECT TO DATUMS A AND B AND DEFINE THE POSITION OF THE CENTER SOLDER BALL IN THE OUTER ROW. WHEN THERE IS AN ODD NUMBER OF SOLDER BALLS IN THE OUTER ROW PARALLEL TO THE D OR E DIMENSION, RESPECTIVELY, SD OR SE = 0.000. WHEN THERE IS AN EVEN NUMBER OF SOLDER BALLS IN THE OUTER ROW, SD OR SE = e/2 8. NOT USED. 9. "+" INDICATES THE THEORETICAL CENTER OF DEPOPULATED BALLS. 10 A1 CORNER TO BE IDENTIFIED BY CHAMFER, LASER OR INK MARK, METALLIZED MARK INDENTATION OR OTHER MEANS. 3338 \ 16-038.25b July 16, 2009 S29AS008J_00_08 S29AS008J 53 Data Sheet 22. Revision History Section Revision 01 (July 27, 2007) Initial release. Revision 02 (October 30, 2007) Ordering Information Table Primary Vendor-Specific Extended Query Revision 03 (June 6, 2008) Ordering Information CMOS Compatible TSOP and BGA Pin Capacitance Connection Diagram Physical Dimention Common Flash Memory Interface Revision 04 (August 19, 2008) Sector Protection/Unprotection Global In-System Group Protect/Unprotect Algorithms Read Operations Revision 05 (October 27, 2008) Customer Lockable: Secured Silicon Sector Programmed and Protected at the Factory TSOP and Pin Capacitance Revision 06 (March 6, 2009) Ordering Information Connection Diagrams Special Handling Instructions Package Pin Capacitance Physical Dimensions Table: Erase and Programming Performance Revision 07 (April 27, 2009) Ordering Information Revision 08 (July 16, 2009) Global Sector Address Tables Read Operations Removed all references to WLCSP from data sheet. Corrected notes to Tables 7.3 and 7.4. Removed note 3 from section 18.1. Updated the Valid combination Updated the Valid Communication table Added VBK048 Added section Updated table Added VBK048 Updated table Modified first bullet Updated figure Secured Silicon Sector Protect Verify Updated Table Replaced entire section. Modified all references to sector protection, sector unprotection, temporary sector unprotect, and temporary sector unprotect to sector group protection, sector groupunprotection, temporary sector group unprotect, and temporary sector group unprotect. Added Note Added note 3 Removed all 50 ns speed option and FBGA package offerings Updated the Valid Combination table Updated Note 4 Changed Title to Package Pin Capacitance Added WLCSP Information Removed VBK048 Added WLCSP Removed VBK048 Added WLCSP Updated Table Primary Vendor-Specific Extended Query Deleted all Leaded package offerings Corrected the data of CFI address 44 Hex Description 54 S29AS008J S29AS008J_00_08 July 16, 2009 Data Sheet Colophon The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite). Please note that Spansion will not be liable to you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the US Export Administration Regulations or the applicable laws of any other country, the prior authorization by the respective government entity will be required for export of those products. Trademarks and Notice The contents of this document are subject to change without notice. This document may contain information on a Spansion product under development by Spansion. Spansion reserves the right to change or discontinue work on any product without notice. The information in this document is provided as is without warranty or guarantee of any kind as to its accuracy, completeness, operability, fitness for particular purpose, merchantability, non-infringement of third-party rights, or any other warranty, express, implied, or statutory. Spansion assumes no liability for any damages of any kind arising out of the use of the information in this document. Copyright (c) 2007-2009 Spansion Inc. All rights reserved. Spansion(R), the Spansion logo, MirrorBit(R), MirrorBit(R) EclipseTM, ORNANDTM, EcoRAMTM and combinations thereof, are trademarks and registered trademarks of Spansion LLC in the United States and other countries. Other names used are for informational purposes only and may be trademarks of their respective owners. July 16, 2009 S29AS008J_00_08 S29AS008J 55 |
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