MAX6334UR17D3-T

Overview

The MAX6334UR17D3-T is a microprocessor supervisory circuit from the MAX6332/33/34 family, designed for 1.8V to 3.3V digital systems. It monitors a single voltage input and asserts an active-low reset signal when VCC drops below a factory-trimmed threshold of 1.7V. The device features an open-drain output, a minimum reset timeout delay of 100ms, and operates within a supply range down to 1.0V. It consumes low quiescent current and functions across an extended temperature range of -40°C to +125°C in a compact SOT-23-3 package.

Feature Summary

• Monitors power supply voltage and asserts reset when falling below preset threshold
• Provides open-drain active-low reset output compatible with various logic families
• Guaranteed correct state operation down to 1.0V supply voltage
• Includes fixed reset timeout period to ensure stable power-up sequencing

Applications

• Microprocessor (µP) power supply monitoring in embedded systems
• Digital system voltage supervision for reliability enhancement
• Battery-powered devices requiring low-power voltage tracking

Procurement Notes

Verify the exact suffix 'T' against official Analog Devices documentation to confirm tape-and-reel packaging status. Confirm RoHS compliance and lead-free specifications via the manufacturer datasheet. Check current lifecycle status as Maxim Integrated products may have limited availability or obsolescence notices.

Selection Notes

Select this component when an open-drain reset output is required rather than push-pull. Ensure the 1.7V threshold matches the target system's brown-out detection requirements. Verify that the 100ms timeout meets the processor startup time constraints. Compare with MAX6333 if push-pull output is preferred for similar performance.

Part Context

Part of the MAX6332/MAX6333/MAX6334 series of ultra-low-voltage, low-power µP reset circuits. These devices eliminate external components by integrating precise voltage monitoring and timing functions into a small 3-pin SOT-23 package, reducing board space and cost compared to discrete solutions.

Replacement Considerations

MAX6334UR17D2+T offers identical electrical characteristics but with a push-pull output instead of open-drain. MAX6334UR18D3+T provides a slightly higher 1.8V threshold with the same open-drain configuration.