Maxim Integrated MAX6320UR26-T Microprocessor Supervisory Circuit

The Maxim Integrated MAX6320UR26-T is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected behavior in digital systems. This precision voltage-monitoring device is ideal for managing power supplies and ensuring that microprocessors and other sensitive digital circuits operate within safe voltage thresholds.

The MAX6320UR26-T supervises the power supply voltage by providing a reset signal to the connected µP during power-up, power-down, and brownout conditions. The reset output remains asserted for a minimum of 140ms after V<sub>CC has risen above the reset threshold, ensuring that the µP has sufficient time to initialize and stabilize before commencing operation. This feature helps prevent system errors and data corruption during transient conditions.

Featuring a factory-trimmed reset threshold of 2.63V, the MAX6320UR26-T caters to systems that operate with a 2.7V power supply, though it is flexible enough to be used in a variety of applications with different voltage requirements. The low supply current of 1.2µA (typical) makes it an excellent choice for portable and battery-operated devices where power conservation is critical.

Encapsulated in a compact SOT-23 package, the MAX6320UR26-T is designed for space-constrained applications. It is also characterized for operation over a wide temperature range of -40°C to +85°C, which allows it to be used in environments with varying temperature conditions.

The device comes with additional features such as a manual reset input, which provides a way to trigger a system reset externally. This is particularly useful for implementing user-initiated resets or for diagnostic purposes. Furthermore, the MAX6320UR26-T includes an active-low, push-pull reset output, which ensures compatibility with a variety of digital interfaces and simplifies the design process.

Overall, the Maxim Integrated MAX6320UR26-T microprocessor supervisory circuit is a robust solution for enhancing system reliability and stability across a range of electronic applications, from consumer electronics to industrial control systems.