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SGS Thomson Microelectronics
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| Part No. |
ST7554TQF7
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| OCR Text |
modem controller january 1999 summary data tqfp48 (7 x 7 x 1.40mm) (full plastic quad flat pack) order code : st7554tqf7 general . usb hot plug & play interface . direct interface to st mafe+daa chip-set st75951/st952 for world- wide daa... |
| Description |
V.90 USB word modem controller
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| File Size |
147.84K /
11 Page |
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NXP Semiconductors N.V.
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| Part No. |
SC16C2552BIA44 SC16C2552B SC16C2552BIA44518
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| OCR Text |
...T functions with 16-byte FIFOs, modem control interface, DMA mode data transfer and concurrent writes to control registers of both channels. The DMA mode data transfer is controlled by the FIFO trigger levels and the RXRDY and TXRDY signals... |
| Description |
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs; Package: SOT187-2 (PLCC44); Container: Reel Dry Pack, SMD, 13" 2 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQCC44
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| File Size |
168.56K /
38 Page |
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it Online |
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XECOM
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| Part No. |
XE014JS-ITR
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| OCR Text |
... and oh control lines. 12 oh(-) modem switch-hook control: oh(-), an active low input, for controls the switch hook in the xe014js. when the host activates pin 12, the switch-hook closes and the xe014js seizes the local telephone line. pi... |
| Description |
DAA for shared-line applications.
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| File Size |
47.51K /
11 Page |
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it Online |
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XECOM
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| Part No. |
XE0052S2 XE0052T1 XE0052T2
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| OCR Text |
...052s a low on /ri indicates the modem is receiving a ring signal. the xe0052t provides a pulse string at twice the ring frequency when a ring is detected. pin name i/o description xe0052 absolute maximum ratings storage temperature -25 o c... |
| Description |
Slim V.34 telephone line interface with 2/4 wire hybrid. Continuous low level. Horizontal mount. 33,600 bps.
Slim V.34 telephone line interface with 2/4 wire hybrid. Ring signal pulses. Vertical mount. 33,600 bps.
Slim V.34 telephone line interface with 2/4 wire hybrid. Ring signal pulses. Horizontal mount. 33,600 bps.
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| File Size |
33.18K /
7 Page |
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it Online |
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XECOM
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| Part No. |
XE0020C
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| OCR Text |
... an active high output from the modem. hint goes high for one second if an extension telephone is picked-up while the daa has control of the line. when the host sees hint go high, it should immediately lower oh to disconnect the xe0020 or... |
| Description |
Telephone line interface with active line monitoring.
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| File Size |
26.87K /
6 Page |
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it Online |
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