MAX6332UR22D3+T

Overview

The MAX6332UR22D3+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single voltage input and provides an active-high, push-pull reset output. The device features a fixed threshold voltage of 2.2V and a reset delay time of 100ms. It operates within a supply voltage range up to 5.5V and supports surface-mount installation in an SOT-23-3 package. The component functions across a temperature range of -40°C to +125°C with a quiescent current of 3.3µA.

Feature Summary

• Provides system supervision by asserting a reset signal when the monitored power supply voltage drops below a preset threshold.
• Features an active-high, push-pull RESET output for direct interface with host processors.
• Eliminates the need for external components and adjustments through integrated threshold and timeout functionality.

Applications

• Monitoring power supplies in 1.8V to 3.3V microprocessor systems
• Digital system voltage supervision
• Microprocessor reset circuitry

Procurement Notes

Verify the exact suffix D3 against official documentation to confirm the specific threshold voltage and revision, as suffixes define electrical parameters. Confirm availability status as distribution channels may list this part as discontinued or limited supply. Ensure the ordering information matches the required active-high output configuration specified in the datasheet.

Selection Notes

Select this component when an active-high reset output is required for the target processor architecture. Compare the 2.2V threshold against the system's minimum operating voltage to ensure proper triggering. Verify that the SOT-23-3 package fits the PCB layout constraints and that the 100ms delay meets the system startup timing requirements.

Part Context

This part belongs to the MAX6332/MAX6333 series of 3-pin, ultra-low-voltage, low-power µP reset circuits. The series is designed to increase circuit reliability and reduce cost by integrating supervisor functions into a small package. The MAX6332 variant specifically distinguishes itself from the MAX6333 by providing an active-high output instead of active-low.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.