MAX6467XS22D3-T

Overview

The MAX6467XS22D3-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 2.2V. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period of 225 ms, even during continuously asserted manual resets. It operates within a temperature range of -40°C to +125°C, consumes 7 µA of quiescent current, and supports a maximum supply voltage of 5.5V. The output is active low with an open-drain configuration.

Feature Summary

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

Applications

• Microprocessor system supervision
• Power supply monitoring in embedded systems
• Manual reset input protection in digital circuits

Procurement Notes

Verify the exact suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as '+T' variants typically denote lead-free and RoHS-compliant devices. Check manufacturer documentation for specific lot traceability and handling instructions required for surface-mount assembly processes.

Selection Notes

Select this component when a fixed 2.2V threshold is required for single-rail monitoring. Ensure the application does not require watchdog timer functionality or battery backup switching, as these features are absent. Verify that the 225 ms delay time aligns with the target microprocessor's startup requirements.

Part Context

This part belongs to the MAX6467/MAX6468 family of microprocessor supervisory circuits. These devices are designed to improve system reliability by providing precise voltage monitoring and controlled reset assertion. The family offers various factory-trimmed thresholds to accommodate different supply voltage standards.

FAQ

Does the MAX6467XS22D3-T include a watchdog timer?

No, the MAX6467XS22D3-T does not include a watchdog timer function.

What is the reset delay time for this component?

The reset delay time is 225 ms.