MM1099 Overview
Pin name TC N.C CK GND VCC RCT VS RESET Clock input terminal Inputs the clock from the logic system. Ground terminal Voltage detection MM1099A 3.2V MM1099B 4.2V OPEN, Stop connect to GND Watchdog timer stop pin Operation modes: Operation Detect voltage variable terminal Reset output pin (low output) Variable terminals TWD, TWR and TPR The time for TWD, TWR and TPR to be determined by the external capacitor.