The MAX706SCPA is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated 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 in conjunction with +5V-powered circuits.

This device is ideal for use in a wide range of applications including computers, controllers, intelligent instruments, and critical µP power monitoring. It ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX706SCPA also features a watchdog timer that supervises the µP or microcontroller activity and signals a reset if the system becomes unresponsive within a preset time frame.

Key Features:

• Power Supply Monitoring: Precision monitoring of +5V power supplies with a 4.65V threshold.
• Reset Output: The reset output is guaranteed to remain in the active state for a minimum of 200ms after VCC has risen above the reset threshold level, ensuring the system has sufficient time to stabilize.
• Watchdog Timer: A 1.6s timeout watchdog timer provides system reliability by initiating a system reset if the µP does not provide a periodic signal within this timeframe.
• Manual Reset: An active-low manual reset input allows for an external trigger to initiate a system reset.
• Low Power Consumption: Designed for low power consumption, this supervisory circuit is suitable for battery-operated applications.
• Small Package: The MAX706SCPA is available in an 8-pin DIP or SO package, making it convenient for space-constrained applications.

Applications:

• Computers and Servers
• Embedded Systems
• Intelligent Instruments
• Portable/Battery-Powered Equipment
• Critical µP and µC Power Monitoring

Maxim Integrated's MAX706SCPA supervisory circuit is a robust solution for system designers looking to enhance the reliability and performance of their digital systems. With its precision voltage monitoring and reset capabilities, it is an essential component for maintaining system integrity across a broad range of applications.