View max6746-max6753 datasheet:

19-2530; Rev 0; 7/02 µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay General Description Features The MAX6746–MAX6753 low-power microprocessor Factory-Set Reset Threshold Options from 1.575V (µP) supervisory circuits monitor single/dual system to 5V in ~100mV Increments supply voltages from 1.575V to 5V and provide maxi- Adjustable Reset Threshold Options mum adjustability for reset and watchdog functions. These devices assert a reset signal whenever the VCC Single/Dual Voltage Monitoring supply voltage or RESET IN falls below its reset thresh- Capacitor-Adjustable Reset Timeout old or when manual reset is pulled low. The reset output remains asserted for the reset timeout period after VCC Capacitor-Adjustable Watchdog Timeout and RESET IN r