NCP1232 Microprocessor Monitor The NCP1232 is a fully-integrated processor supervisor.
It provides three important functions to safeguard processor functionality: precision power on/off reset control, watchdog timer and external reset override.
On power-up, the NCP1232 holds the processor in the reset state for a minimum of 250 msec after VCC is within tolerance to ensure a stable system start-up.
Microprocessor functionality is monitored by the on- board watchdog circuit.
The microprocessor must provide a periodic low-going signal on the ST input.
Should the processor fail to supply this signal within the selected time-out period (150 msec, 600 msec or 1200 msec), an out- of- control proce...

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