Maxim Integrated's MAX6316MUK31CY is a highly compact, low-power 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 in systems that require a reset. This supervisory circuit is particularly suitable for portable and space-constrained applications given its small SOT-23 package.

The MAX6316MUK31CY features a factory-trimmed reset threshold voltage, specifically designed to operate with a 3.1V power supply, ensuring that the system microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, providing ample time for the system to stabilize.

This device boasts a low supply current of only 1.0µA, making it an energy-efficient choice for battery-operated equipment. The MAX6316 series offers several options for reset threshold voltages and output stages, but the MAX6316MUK31CY specifically comes with an active-low, push-pull reset output. This configuration allows for a direct connection to the reset pin of the microprocessor, without the need for an external pull-up resistor.

The MAX6316MUK31CY is designed to ignore fast transients on the VCC line, reducing the possibility of false reset signals during normal operation. It is also immune to short VCC transients, adding an extra layer of reliability. The operating temperature range for this device is from -40°C to +85°C, allowing for its use in a wide variety of environments and applications.

Maxim Integrated's commitment to high-quality and reliability is evident in the MAX6316MUK31CY, making it an ideal choice for critical system monitoring applications that require minimal downtime and maximum performance.