Maxim Integrated's MAX811TEUR Microprocessor (µP) Supervisory Circuit

The MAX811TEUR from Maxim Integrated is a compact, highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and precision with a combination of low power consumption and tight voltage monitoring accuracy, making it an ideal solution for portable and low-power applications.

This supervisory circuit offers a variety of features that ensure system stability. One of its core functions is to provide a reset signal to the µP during power-up, power-down, and brownout conditions. The reset signal maintains the processor in a reset state until the system voltage has stabilized at the correct level for reliable operation, thereby preventing any erroneous operation due to low voltage.

The MAX811TEUR is characterized by its 4-pin SOT-143 package, which is not only space-saving but also convenient for high-density circuit designs. It has a factory-trimmed reset threshold voltage, which can be selected to match the voltage requirements of specific applications, ensuring compatibility with a wide range of microprocessors and other digital systems.

Another notable feature of the MAX811TEUR is its low supply current of only 1.5µA (typical), which is essential for battery-operated devices. This contributes to extended battery life and reduced power consumption, making it an environmentally friendly choice for energy-conscious designs.

The device also includes a manual reset feature that allows the system to be reset via an external switch or software command, providing additional flexibility and control for system designers. The reset output is available in both active-low (MAX811T) and active-high (MAX811R) configurations, ensuring that it can interface seamlessly with a variety of microprocessors and other logic systems.

Overall, the MAX811TEUR supervisory circuit from Maxim Integrated is a reliable and versatile component that offers critical protection for digital systems. It ensures that microprocessors start-up in a known state and remain operational across a range of voltage conditions, thereby enhancing system stability and preventing data corruption.

For designers seeking a robust voltage monitoring solution, the MAX811TEUR provides a perfect blend of features, efficiency, and reliability that is hard to surpass in today's market.