MAX6327UR31-T

Overview

The MAX6327UR31-T is a microprocessor supervisory circuit from the MAX6327 series, manufactured by Analog Devices Inc./Maxim Integrated. It monitors power supply voltages in digital systems and asserts an active-high push-pull reset signal when VCC declines below a preset threshold. The device features ultra-low supply current of 1µA maximum, ensuring suitability for portable equipment. It provides a minimum power-on reset pulse width of 100ms and operates within a voltage range down to 1V. The component is housed in a space-saving SC-70 package with three pins.

Feature Summary

• Provides active-high push-pull reset output for reliable system supervision
• Ultra-low supply current ensures extended battery life in portable applications
• Factory-trimmable reset thresholds allow precise monitoring of various voltage levels

Applications

• Microprocessor and digital system power supply monitoring
• Portable electronic equipment requiring low power consumption
• Circuits powered by 2.5V, 3V, 3.3V, or 5V supplies

Procurement Notes

Verify the exact suffix against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with existing PCB footprint and thermal requirements. Confirm RoHS compliance status if required by regulatory standards. Check for obsolescence notices as this component may be discontinued.

Selection Notes

Select this part for applications requiring an active-high reset output with minimal quiescent current. Compare with MAX6326 (active-low) or MAX6328 (open-drain) if different output types are needed. Ensure the fixed threshold voltage matches the specific supply rail being monitored without external adjustments.

Part Context

The MAX6327 series belongs to Maxim Integrated's family of ultra-low-power supervisory circuits. These devices eliminate external components and adjustments, offering a cost-effective solution for maintaining circuit reliability. The series includes variants with different output configurations and threshold voltages to suit diverse design needs.

Replacement Considerations

Direct substitutes include MAX6326UR31+T and MAX6328UR31+T, provided the output polarity difference is acceptable. Verify that alternative parts maintain the same SC-70 package and electrical specifications.