Maxim Integrated MAX6323AUT46+T Microprocessor Reset Circuit

The MAX6323AUT46+T from Maxim Integrated is a highly reliable 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 3.3V-powered circuits. This device is ideal for portable electronics, computers, controllers, and intelligent instruments where precise monitoring of the system voltage is crucial for proper operation.

This microprocessor reset circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6323AUT46+T features an active-low reset output, with the reset timeout period factory-set to a precise value, eliminating the need for external timing components. The reset signal remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring that the µP has sufficient time to stabilize during power-up.

One of the key features of the MAX6323AUT46+T is its low supply current of only 1.2µA, which makes it suitable for battery-operated applications. The device also includes a debounced manual reset input, allowing for a manual system reset with minimal external hardware. This input can be driven by an external push-button or logic signal for additional system control flexibility.

The MAX6323AUT46+T operates over a wide voltage range, from 1.2V to 5.5V, making it versatile for various applications. It is available in a small, 6-pin SOT23 package, which is ideal for space-constrained applications. Additionally, the device's extended temperature range from -40°C to +85°C ensures reliable operation in harsh environments.

Maxim Integrated's commitment to quality is evident in the MAX6323AUT46+T, providing system designers with a robust, easy-to-implement solution for voltage monitoring and reset functions. With its precision voltage monitoring and low power consumption, this reset circuit is an essential component for maintaining system integrity and preventing data corruption during power fluctuations.