General Description

The ASM1232LP/LPS is a fully integrated microprocessor supervisor. It can halt and restart a “hung-up” microprocessor, restart a microprocessor after a power failure. It has a watchdog timer and external reset override.

Key Features

• 5V supply monitor

• Selectable watchdog period

• Debounce manual push-button reset input

• Precision temperature-compensated voltage reference and comparator.

• Power-up, power-down and brown out detection

• 250ms minimum reset time

• Active LOW open drain reset output and active HIGH push-pull output

• Selectable trip point tolerance: 5 or 10

• Low-cost surface mount packages: 8-pin/16-pin SO, 8-pin DIP and 8-pin Micro SO packages

• Wide operating temperature -40°C to +85°C (N suffixed devices)

Applications

• Microprocessor Systems

• Computers

• Controllers

• Portable Equipment

• Intelligent Instuments

• Automotive Systems