Threshold voltage: 2.19V; micropower uP watch dog timer Threshold voltage: 2.32V; micropower uP watch dog timer Threshold voltage: 2.63V; micropower uP watch dog timer Threshold voltage: 2.93V; micropower uP watch dog timer Threshold voltage: 4.63V; micropower uP watch dog timer Threshold voltage: 4.38V; micropower uP watch dog timer Threshold voltage: 3.08V; micropower uP watch dog timer