MAX6342RUT+T

Overview

The MAX6342RUT+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of +1V to +5.5V and features a factory-trimmed reset threshold voltage of 4.38V. The device provides an active-low push-pull reset output with a manual reset input for system control. It includes a power-fail comparator with a fixed +1.25V threshold detector, suitable for low-battery detection or monitoring secondary supplies. The component is housed in a compact SOT-23-6 package and supports surface-mount installation.

Feature Summary

• Integrates a power-fail comparator with a dedicated +1.25V threshold detector for auxiliary supply monitoring
• Provides a manual reset input allowing direct user control over the reset state
• Features an active-low push-pull reset output for robust signal driving capability

Applications

• Digital systems requiring reliable power supply supervision
• Low-battery detection circuits
• Monitoring secondary power rails via the power-fail pin

Procurement Notes

Verify the specific suffix 'R' against official datasheets to confirm it denotes the standard temperature grade variant rather than a specialized automotive or extended grade. Confirm RoHS compliance status through the manufacturer's current documentation. Ensure the SOT-23-6 package dimensions match your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a manual reset function and a dedicated power-fail warning are required alongside standard voltage supervision. The fixed 4.38V threshold suits 5V logic systems. Consider alternative models if adjustable thresholds or open-drain outputs are preferred. Verify that the +1.25V power-fail threshold aligns with your specific battery or secondary rail monitoring needs.

Part Context

This part belongs to the MAX6342–MAX6345 family of µP supervisory circuits designed to improve system reliability. These devices replace discrete components by offering factory-trimmed thresholds ranging from 2.33V to 4.63V. The MAX6342 specifically distinguishes itself within the family by including a manual reset input and a push-pull output configuration.

Replacement Considerations

The MAX6343 and MAX6344 are electrically identical to the MAX6342 except they lack the manual reset input feature.