MAX6467US29D3-T

Overview

The MAX6467US29D3-T is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. 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 only. 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 continuous reset assertion during prolonged manual input
• Factory-trimmed threshold voltage options ensure accurate monitoring of single power-supply rails
• Active low, open-drain output configuration facilitates direct interfacing with microprocessor reset pins

Applications

• Microprocessor (MPU) supervisory reset circuits
• Power supply voltage monitoring systems
• Embedded system reliability enhancement

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and lead times directly with suppliers. Ensure storage conditions meet moisture sensitivity level requirements. Cross-reference part numbers carefully to avoid confusion with similar series components. Request detailed datasheets and test reports for critical applications.

Selection Notes

Select this component when precise monitoring of a single power rail between 1.8V and 5.0V is required. Consider the 2.925V threshold specifically for applications needing reset activation at this voltage level. Evaluate the 7µA quiescent current for low-power designs. Verify package compatibility with SC-70-4 footprint constraints. Assess thermal performance within the -40°C to +125°C operating range.

Part Context

The MAX6467 series belongs to Maxim Integrated's microprocessor supervisory circuit family, designed to improve system reliability compared to traditional manual reset circuits. These devices are engineered for robust operation in demanding electronic environments, providing essential protection against power supply anomalies. The series includes various threshold options to accommodate different voltage levels commonly used in digital systems.

Replacement Considerations

Public confirmed substitute part numbers: MAX6467XS23D3+T, MAX6467XS32D3.