The MAX909CPA is a highly precise microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and accuracy required in critical applications. This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions.

Key Features

• Power Supply Monitoring: The MAX909CPA constantly monitors the power supply voltage and maintains the system integrity by providing reset signals to the µP during out-of-tolerance conditions.
• Manual Reset: A manual reset feature allows for a reset to be triggered with an external button or signal, providing additional system control.
• Low Power Consumption: Designed for low-power operation, the MAX909CPA is ideal for battery-operated systems, consuming minimal power and extending the battery life of the application.
• High Accuracy: With its precision voltage monitoring, the device ensures reliable operation by accurately detecting under-voltage conditions.
• Compact Package: The MAX909CPA is available in an 8-pin PDIP package, making it suitable for space-constrained applications.

Applications

The MAX909CPA is versatile and can be used in a wide range of applications, including:

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

Technical Specifications

With the MAX909CPA, Maxim Integrated continues to reinforce its commitment to providing robust and reliable integrated circuits that enhance the performance and dependability of electronic systems.