Professional IC Distribution & Technical Solutions

The MAX691CPE+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:

Specifications:

• Manufacturer: Maxim Integrated
• Part Number: MAX691CPE+
• Package: 16-PDIP (Plastic Dual In-Line Package)
• Operating Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: Adjustable or fixed (factory-set)
• Reset Timeout Period: 200ms (typical)
• Operating Temperature Range: 0°C to +70°C (Commercial)
• Battery Backup Switchover: Supports automatic switchover to backup battery
• Watchdog Timer: Includes a watchdog timer with a 1.6s timeout (typical)
• Manual Reset Input: Supports external manual reset control
• Low Quiescent Current: Typically 5μA in backup mode

Descriptions:

The MAX691CPE+ is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It also includes a watchdog timer to detect software lockups and a battery backup switchover feature to maintain power during primary supply failure.

Features:

• Power Supply Monitoring: Monitors VCC for undervoltage conditions.
• Battery Backup: Automatically switches to backup battery when VCC fails.
• Watchdog Timer: Prevents system lockup by requiring periodic toggling.
• Manual Reset Input: Allows external reset triggering.
• Low Power Consumption: Minimal current draw in backup mode.
• Wide Operating Voltage Range: Supports systems from 1.2V to 5.5V.
• Fixed or Adjustable Reset Threshold: Configurable for different applications.

This information is based on the manufacturer's datasheet and technical documentation.