MAX6467XS46D3+T

Overview

The MAX6467XS46D3+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 4.625V. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period, even during continuously asserted manual resets. It operates within a temperature range of -40°C to +125°C, consumes 7µA of quiescent current, and supports a maximum supply voltage of 5.5V with a reset delay time of 225ms.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents indefinite reset states
• Active low open-drain output for flexible interfacing
• Factory-trimmed threshold voltage ensures accurate supervision
• Low quiescent current consumption for power efficiency

Applications

• Microprocessor (µP) supervisory circuits
• Single power-supply voltage monitoring systems
• Embedded systems requiring reliable reset management

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and lead times as availability may vary. Ensure proper handling and storage conditions are maintained to prevent damage to the SC-70-4 package. Cross-reference part numbers carefully to avoid substitution errors.

Selection Notes

Select this component when a fixed threshold voltage near 4.625V is required for power supply monitoring. Consider the active low open-drain output compatibility with system logic levels. Evaluate the 225ms reset delay against system startup requirements. Verify thermal performance within the specified operating temperature range.

Part Context

The MAX6467 series includes various threshold voltage options to accommodate different power supply rails. This specific variant provides a 4.625V threshold, suitable for monitoring higher voltage supplies within the 1.8V to 5.0V range. The series shares common features like low current consumption and manual reset functionality across different threshold variants.

Replacement Considerations

Other MAX6467 variants with different threshold voltages may serve as functional substitutes if the voltage level matches application requirements. Verify pinout compatibility and electrical characteristics before substitution.