NCP1232 - Microprocessor Monitor
Symbol PB RST TD TOL GND RST RST ST VCC Description Push-button Reset Input.
A debounced active-low input that ignores pulses less than 1 msec in duration and is guaranteed to recognize inputs of 20 msec or greater.
Time Delay Set.
The watchdog time-out select input (tTD = 150 msec for TD = 0 V, t
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 mu
NCP1232 Features
* Precision Voltage Monitor (Adjustable +4.5 V or +4.75 V)
* Reset Pulse Width (250 msec Min)
* No External Components
* Adjustable Watchdog Timer (150 msec, 600 msec or 1.2 sec)
* Debounced Manual Reset Input for External Override Applications
* Compu
