Maxim Integrated MAX708RESA Microprocessor Supervisory Circuit

The MAX708RESA from Maxim Integrated is a highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low-cost solutions for system initialization when power is first turned on and maintains it throughout operation.

This supervisory circuit ensures that the microprocessor is reset to a known state during power-up, power-down, and brownout conditions. The MAX708RESA features a combination of functions that make it ideal for a variety of applications such as computers, controllers, intelligent instruments, and critical µP power monitoring.

Key Features:

• Reset Output: The device provides a reset signal for the µP during power-up, power-down, and brownout conditions. The reset output remains operational with VCC as low as 1.2V.
• Watchdog Timer: A watchdog timer is built-in to ensure that the µP does not hang in an indefinite loop. This feature helps in maintaining regular system checks and reliable operation.
• Manual Reset: A manual reset input allows for an external trigger to initiate a system reset, providing an additional layer of system control.
• Low Power Consumption: The device is designed for low power consumption, making it suitable for power-sensitive applications.
• Voltage Monitor: The MAX708RESA includes a precision voltage monitor that tracks the system voltage and ensures proper operation of the microprocessor by issuing a reset when necessary.

Package and Temperature:

The MAX708RESA is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained applications. It operates over the extended temperature range of -40°C to +85°C, making it reliable in various environmental conditions.

With its robust feature set and Maxim Integrated's reputation for high-quality products, the MAX708RESA is an excellent choice for designers looking to enhance system reliability and performance through precise monitoring and control of their power supply and microprocessor systems.