Maxim Integrated MAX691CWE+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX691CWE+T is a highly integrated microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in battery-powered systems, computers, controllers, and intelligent instruments.

Key Features:

• Power Supply Monitoring: The MAX691CWE+T monitors the power supply voltage and ensures that the system is reset to a known state during power-up, power-down, and brownout conditions. It keeps the microprocessor in the reset state until the supply voltage reaches a stable and safe level for the processor to operate.
• Battery Backup Switching: It includes a battery backup switching function that automatically switches to a backup battery when the main power supply fails, ensuring uninterrupted operation of memory and critical functions.
• Watchdog Timer: The integrated watchdog timer helps to detect and recover from microprocessor malfunctions. If the microprocessor does not provide a periodic signal to the MAX691CWE+T, the device will issue a reset signal to the microprocessor to restore normal operation.
• Manual Reset Input: A manual reset input allows for an external pushbutton or signal to initiate a system reset, providing an additional level of control for system maintenance or troubleshooting.
• Low Power Consumption: With its low power consumption, the MAX691CWE+T is particularly suitable for portable and battery-operated applications.

Applications:

The MAX691CWE+T is versatile and can be used in a variety of applications, including:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Industrial Controllers

Package and Quality:

The device is offered in a 16-pin SOIC package, making it compact and easy to integrate into a wide range of system designs. Maxim Integrated's commitment to quality ensures that the MAX691CWE+T meets stringent industry standards for performance and reliability.

With the MAX691CWE+T, designers can trust that their systems are protected against power irregularities and processor malfunctions, leading to increased system stability and reliability.