Maxim Integrated MAX6328UR22+T Microprocessor Supervisory Circuits

The MAX6328UR22+T is a highly precise, low-power microprocessor (µP) supervisory circuit from Maxim Integrated, designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and accuracy required in today's advanced electronic applications.

This supervisory circuit is particularly useful for managing system integrity through monitoring the power supply voltage. It ensures that the µP boots up in a known state and helps in preventing code execution errors during power-up, power-down, and brown-out conditions. The MAX6328UR22+T operates by asserting a reset signal whenever the VCC supply voltage falls below its reset threshold level. The reset signal remains asserted for a period after VCC has risen above the reset threshold, ensuring the system has stabilized before the processor begins operation.

One of the key features of this device is its precision factory-set VCC reset threshold at 2.20V, which is ideal for systems that operate at lower voltages. It also boasts a low supply current of 1.2µA (typical), which is highly beneficial for battery-powered applications where power efficiency is crucial.

Additional features include a debounced manual reset input which allows for a manual system reset. The MAX6328UR22+T also offers a 140ms (min) reset timeout period, providing ample time for the system to stabilize upon power-up. The device is available in a small SOT-23 package, which is excellent for space-constrained applications.

The operating temperature range of the MAX6328UR22+T is from -40°C to +85°C, accommodating a wide range of environmental conditions. It is offered in a tape-and-reel form, with the suffix 'T' indicating its packaging type, suitable for automated assembly processes. This supervisory circuit is an ideal choice for portable equipment, computers, controllers, and intelligent instruments that require precise voltage monitoring and power management.

With its robust feature set and Maxim Integrated's reputation for high-quality components, the MAX6328UR22+T is a reliable solution for system designers looking to enhance the operational stability and reliability of their digital systems.