Maxim Integrated MAX823TEUK-T Microprocessor Supervisory Circuit

The Maxim Integrated MAX823TEUK-T is a highly compact, precision 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 conjunction with 5V-powered µPs.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brownout conditions. The MAX823TEUK-T features a combination of functionalities, including a manual reset input, a reset output, and a watchdog timer. This combination makes it an ideal solution for managing system integrity and preventing system failures.

Key Features:

• Power Supply Monitoring: The device actively monitors the system voltage and issues a reset to the µP whenever the supply voltage drops below a preset threshold, ensuring reliable operation during power fluctuations.
• Manual Reset Input: An external push-button can be connected to the manual reset input, allowing for a manual system reset, which is useful for debugging and testing purposes.
• Watchdog Timer: The integrated watchdog timer keeps the system in check by requiring periodic servicing from the µP. If the µP fails to refresh the watchdog, the MAX823TEUK-T will issue a system reset, thus helping to recover from a software lock-up or malfunction.
• Compact SOT23-5 Package: The device comes in a small SOT23-5 package, making it suitable for space-constrained applications without sacrificing performance or functionality.
• Low Power Consumption: Designed for power-sensitive applications, the MAX823TEUK-T consumes minimal power, which is critical for battery-operated devices.

With its precision voltage monitoring and robust feature set, the MAX823TEUK-T is an essential component for enhancing system reliability in a wide range of applications, including portable/battery-powered equipment, computers, controllers, and intelligent instruments. Maxim Integrated's commitment to quality ensures that the MAX823TEUK-T meets the stringent requirements of modern electronic systems, providing designers with a trusted solution for µP system supervision.