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NCP1232 - Microprocessor Monitor

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.

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.

📥 Download Datasheet

Datasheet preview – NCP1232

Datasheet Details

Part number NCP1232
Manufacturer ON
File Size 94.94 KB
Description Microprocessor Monitor
Datasheet download datasheet NCP1232 Datasheet
Additional preview pages of the NCP1232 datasheet.

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Full PDF Text Transcription

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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 processor is indicated and the NCP1232 issues a processor reset as a result.
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