Maxim Integrated's MAX6854UK23D3+T: A Robust Microprocessor Supervisor IC

The MAX6854UK23D3+T from Maxim Integrated is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 2.3V powered circuits. This tiny supervisory IC is ideal for portable electronics, where space is at a premium and extended battery life is crucial.

Encased in a space-saving SOT-23 package, the MAX6854UK23D3+T offers key features such as a factory-trimmed reset threshold, a manual reset feature, and a reset timeout delay. This ensures that the connected microprocessor is reset accurately and reliably, thus safeguarding the system against unpredictable behavior due to power disturbances.

The device's reset output is available in both active-low and active-high configurations, providing designers with flexibility in interfacing with different microprocessor architectures. The reset signal remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring a proper system reset during power-up, power-down, and brownout conditions.

One of the standout features of the MAX6854UK23D3+T is its low supply current draw, which is typically just 1.2µA at +25°C. This makes it an excellent choice for battery-powered applications where power efficiency is critical. The device operates over a wide temperature range of -40°C to +125°C, ensuring reliability in diverse operating environments.

With its built-in manual reset capability, users can trigger a system reset at any time, which is an essential feature for system maintenance and troubleshooting. The MAX6854UK23D3+T's robust design includes debounced CMOS-compatible inputs, which enhance the reliability of the manual reset function.

In summary, the MAX6854UK23D3+T from Maxim Integrated is a versatile and reliable solution for system monitoring and reset. Its combination of features, including low power consumption, manual reset input, and tight reset threshold accuracy, make it an excellent choice for safeguarding microprocessor systems in a broad range of applications.