The ADM705ADM708 are low cost P supervisory circuits. They are suitable for monitoring the 5 V power supply/battery and can also monitor microprocessor activity. The ADM705/ADM706 provide the following functions: 1. Power-On Reset output during power-up, power-down and brownout conditions. The RESET output remains operational with VCC as low as 1 V. 2. Independent watchdog timeout, WDO, that goes low if the watchdog input has not been toggled within 1.6 seconds. 3. A 1.25 V threshold detector for power-fail warning, low battery detection or to monitor a power supply other than 5 V.