MAX6467XS29D3+T

Overview

The MAX6467XS29D3+T is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors single power-supply voltages ranging from +1.8V to +5.0V and asserts a reset signal if the supply voltage drops below its preset threshold of 2.925V. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period of 225ms, even during continuously asserted manual resets. It operates within a temperature range of -40°C to +125°C and consumes 7µA of quiescent current.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents indefinite reset states
• Monitors single power-supply voltage with factory-trimmed threshold accuracy
• Active low, open-drain output compatible with various logic families

Applications

• Microprocessor system supervision
• Power supply monitoring in embedded systems
• Manual reset circuit implementation

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status (+ suffix indicates lead-free). Check datasheet revision history for parameter updates. Ensure SC-70-4 package compatibility with PCB footprint. Validate operating temperature range requirements against application environment specifications before procurement.

Selection Notes

Select this component when a single-channel voltage supervisor with manual reset capability is required. Consider the 2.925V threshold suitability for the target power rail. Evaluate the 225ms reset delay against system startup timing requirements. Verify SC-70-4 package availability and soldering process compatibility. Compare quiescent current consumption against battery-powered application constraints.

Part Context

Part of the MAX6467/MAX6467 family of microprocessor supervisory circuits designed for reliable system reset management. The MAX6467 variant provides active-low open-drain output, while the MAX6468 offers push-pull output. Both share similar monitoring capabilities but differ in output stage configuration. This specific part number denotes the XS29 threshold variant in SC-70-4 packaging.

Replacement Considerations

MAX6467XS29D3+ (non-tape reel version) offers identical electrical characteristics without tape-and-reel packaging. MAX6468XS29D3+T provides push-pull output instead of open-drain. Cross-reference threshold voltage tolerances and reset delay times when substituting with other supervisory ICs from different manufacturers.