ADM705AN

The ADM705 microprocessor supervisory circuits are suitable for monitoring 5 V power supplies/batteries and microprocessor activity.The ADM705 microprocessor supervisory circuits are suitable for monitoring 5 V power supplies/batteries and microprocessor activity. The ADM705/ADM706 provide power-supply monitoring circuitry that generate a reset output during power-up, powerdown, and brownout conditions. The reset output remains operational with VCC as low as 1 V. Independent watchdog monitoring circuitry is also provided. This is activated if the watchdog input has not been toggled within 1.60 sec. In addition, there is a 1.25 V threshold detector to warn of power failures, to detect low battery conditions, or to monitor an additional power supply. An active low, debounced manual reset input (MR) is also included.