Maxim Integrated MAX808NCPA Microprocessor Supervisory Circuit

The Maxim Integrated MAX808NCPA is a highly reliable and efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered circuits. This compact component is essential for managing system integrity and is commonly utilized in a variety of applications including computers, controllers, and intelligent instruments.

The MAX808NCPA supervisory circuit offers several key features that make it an optimal choice for system management. It includes a precision voltage monitor that keeps a close watch on the power supply, a manual reset feature allowing for a system reset at any time, and a reset timeout that ensures the system has sufficient time to stabilize before resuming operation. Its ability to assert a reset signal when the VCC supply voltage declines below a preset threshold ensures that the microprocessor will restart in a known state during power-up, power-down, or brown-out conditions.

This device comes in an 8-pin DIP package, making it easy to integrate into a wide range of electronic systems. The MAX808NCPA operates over a wide temperature range, making it suitable for various environmental conditions. Its low supply current of 15µA (typical) is especially beneficial for portable battery-operated equipment, contributing to extended battery life and reduced power consumption.

Key specifications of the MAX808NCPA include:

• Voltage monitoring to ensure system stability
• Manual reset input for system control
• 200ms reset timeout for proper system recovery
• Operating temperature range from 0°C to +70°C
• Low supply current for energy efficiency
• Immunity to short VCC transients

Overall, the Maxim Integrated MAX808NCPA is an indispensable component for any digital system requiring robust power supply monitoring and management. With its precision voltage monitoring and reset capabilities, it ensures that electronic systems operate reliably and effectively, even under adverse conditions.