Maxim Integrated MAX708TCSA-T Microprocessor Supervisory Circuit

The MAX708TCSA-T from Maxim Integrated is a precision microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V-powered circuits.

This supervisory circuit significantly improves system reliability and accuracy compared to separate ICs or discrete components. The MAX708TCSA-T offers several key features that make it an ideal choice for a variety of applications, including computers, controllers, intelligent instruments, and critical µP power monitoring.

Key Features:

• Reset Output: The device asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. This ensures that the µP starts up in a known state.
• Watchdog Timer: A built-in watchdog timer prevents system failures due to software lock-up, requiring periodic toggling by the connected system to avoid triggering a system reset.
• Manual Reset: A manual reset feature allows for a reset to be asserted by an external pushbutton or logic signal, providing an additional level of system control.
• Low Power Consumption: Designed for energy-sensitive applications, the MAX708TCSA-T consumes low power, making it suitable for portable and battery-operated devices.
• Compact Package: The device is available in an 8-pin SOIC package, allowing for efficient use of board space.

Applications:

• Computers and Servers
• Embedded Systems
• Data Storage Equipment
• Telecommunications Systems
• Industrial Control Systems

The MAX708TCSA-T supervisory circuit is designed to maintain system integrity and prevent data corruption during power failures or unexpected system shutdowns. Its combination of reset logic with watchdog and manual reset features makes it a versatile component for ensuring the proper operation of microprocessor-based systems.

With Maxim Integrated's reputation for quality and reliability, the MAX708TCSA-T is a smart choice for designers looking to enhance system reliability and performance without incurring high costs or design complexities.