Maxim Integrated MAX708SCSA-T Microprocessor Supervisory Circuit

The MAX708SCSA-T is a compact, highly-reliable supervisory circuit designed by Maxim Integrated to monitor power supplies and microprocessor activity in digital systems. It provides a crucial safeguard against system failures by ensuring that the microprocessor is reset to a known state during power-up, power-down, and brown-out conditions. This product is an essential component for any system requiring stable operation and robust protection against unpredictable power supply variations.

Featuring a combination of functions such as reset output during power-up, power-down, and brown-out conditions, a manual reset capability, and a watchdog timer to monitor processor activity, the MAX708SCSA-T is versatile enough to suit a wide range of applications including computers, controllers, intelligent instruments, and critical microprocessor-based systems.

Key specifications of the MAX708SCSA-T include:

• Voltage Monitoring: Accurate monitoring of the system voltage with a precision of ±1.5% over temperature ensures reliable operation.
• Reset Timeout: It features a minimum power-on reset timeout of 200ms, which provides ample time for the system to stabilize before the microprocessor starts operating.
• Watchdog Timer: A 1.6-second (typical) watchdog timeout keeps systems running smoothly by ensuring that the microprocessor is operating as expected.
• Manual Reset: The manual reset input allows for an external trigger to initiate a system reset, offering additional control to the user.
• Low Power Consumption: With its low supply current of 17µA (typical), the MAX708SCSA-T is ideal for power-sensitive applications.
• Operating Temperature: The device is designed to operate within a temperature range of -40°C to +85°C, making it suitable for a variety of environments.
• Package: The supervisory circuit is available in an 8-pin SO package, which is both space-saving and easy to integrate into existing designs.

The MAX708SCSA-T's combination of features ensures that systems not only start in a predictable state but also continue to operate reliably. Its integration into a circuit helps to prevent data corruption and hardware damage that can occur due to volatile power conditions. This makes the MAX708SCSA-T an indispensable component for designing robust and secure electronic systems.