Outline
This IC has a built-in watchdog timer, with 2 channels for a clock monitoring function that monitors the microcomputer and outputs an intermittent reset signal if the microcomputer runs wild. Also, it has a power supply voltage monitoring function (system reset function) which generates a reset signal if power supply voltage is momentarily interrupted or drops, and performs power ON reset during normal power supply recovery and when power is turned on.

FEATUREs
1. Built-in edge trigger input watchdog timer
2. 2 clock pulse monitoring
3. Power ON reset time (TPR) and watchdog timer monitoring time (TWD) can be set individually with external elements (R, C)
4. Excellent watchdog timer monitoring time (TWD) precision A type : ±20%
                                                                                                  B type : ±30%
5. Watchdog function stop pin allows use as system reset IC
6. Accurate power supply voltage drop detection 4.2V±3.5%
7. Detection voltage has hysteresis 100mV typ. ±0.14%/°C
8. Low reset minimum voltage
9. Low current consumption 150µA typ.

APPLICATIONs
    Voltage detection for CPUs, microcomputers, etc. and clock pulse monitoring