Maxim Integrated MAX6864UK29D3S+T Microprocessor Reset Circuit

The Maxim Integrated MAX6864UK29D3S+T is a highly reliable 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 in systems that require voltage monitoring. This component is particularly suited for portable and space-constrained applications due to its small package size.

The device ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6864UK29D3S+T operates with a nominal reset threshold voltage of 2.93V, making it ideal for 3V systems. It features a manual reset input which provides a direct and easy way to initiate a system reset. The reset output is available in both active-low push-pull and active-low open-drain configurations, providing design flexibility.

One of the outstanding features of this supervisory circuit is its low supply current of only 1.6µA, which is particularly beneficial for battery-powered applications where power conservation is critical. The device is designed to be highly precise with a reset threshold accuracy of ±1.5%, ensuring reliable operation even under varying conditions and temperatures.

The MAX6864UK29D3S+T comes in a small, surface-mount SOT-23 package, which is an excellent choice for applications where space is at a premium. It is specified over the extended -40°C to +125°C temperature range, which allows for its use in environments with wide temperature variations.

In summary, the Maxim Integrated MAX6864UK29D3S+T is a compact, low-power, and high-precision microprocessor supervisory circuit that provides essential monitoring and control functions for digital systems. Its ease of integration, coupled with its robust feature set, makes it an excellent choice for designers looking to enhance system reliability in a variety of applications.