General Description

The MAX1232 microprocessor (μP) supervisory circuit provides μP housekeeping and power-supply supervision functions while consuming only 1/10th the power of the DS1232. The MAX1232 enhances circuit reliability in μP systems by monitoring the power supply, monitoring the software execution, and providing a debounced manual reset input. The MAX1232 is a plug-in upgrade of the Dallas DS1232.

Features

● Consumes 1/10th the Power of the DS1232

● Precision Voltage Monitor—Adjustable +4.5V or +4.75V

● Power-OK/Reset Pulse Width—250ms Min

● No External Components

● Adjustable Watchdog Timer—150ms, 600ms, or 1.2s

● Debounced Manual Reset Input for External Override

● Available in 8-Pin PDIP/SO and 16-Pin Wide SO Packages

Applications

● Computers

● Controllers

● Intelligent Instruments

● Critical μP Power Monitoring