Maxim Integrated MAX708SCSA+T Microprocessor Supervisory Circuit

The MAX708SCSA+T from Maxim Integrated is a precision microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low power consumption, making it a suitable choice for a wide range of applications including computers, controllers, intelligent instruments, and critical µP power monitoring.

This supervisory circuit helps to ensure that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX708SCSA+T features a combination of functions such as reset output during power-up, power-down, and brown-out conditions, a 1.25V threshold detector for power-fail warning, low-battery detection, or to monitor a power supply other than +5V, and a manual reset capability.

Key features of the MAX708SCSA+T include:

• Reset Timeout: It offers a 200ms min power-on reset pulse width which ensures that the system has sufficient time to stabilize before the processor starts.
• Voltage Monitoring: The device monitors the +5V power supply voltage and asserts a reset if the supply voltage drops below the factory-set reset threshold, helping to prevent system errors and data corruption.
• Low Power Consumption: With its low supply current of 17µA (typ), this supervisory circuit is ideal for power-sensitive applications.
• Manual Reset Input: The manual reset input allows for a reset to be triggered with an external push-button or logic signal for system testing and other user-initiated events.
• Compact Packaging: The MAX708SCSA+T comes in a compact 8-pin SO package, making it easy to incorporate into space-constrained designs.

Designed for use in systems with a +5V power supply, the MAX708SCSA+T operates over the extended temperature range of -40°C to +85°C, ensuring reliable performance in diverse operating environments. Whether you're designing a new system or upgrading an existing one, the MAX708SCSA+T provides the critical protection your microprocessor requires to operate safely and effectively.

Maxim Integrated's commitment to quality and reliability is evident in this supervisory circuit, making it a smart choice for managing your critical system functions.