MAX6324HUT46-T

Supervisors Overview

The MAX6324HUT46-T is a microprocessor supervisory circuit designed to monitor power supplies and system activity. It features a windowed watchdog timer with manual reset capability and monitors one input voltage. The device provides an active-low open-drain or open-collector output, ensuring valid RESET signals down to VCC = +1.2V. Key electrical parameters include a threshold voltage of 4.63V, a maximum supply voltage of 5.5V, and a reset delay time of 180ms. It operates within a temperature range of -40°C to +125°C with 1.5% accuracy and consumes 27µA of quiescent current.

Supervisors Feature Summary

• Integrates a windowed watchdog timer for monitoring system activity outside expected operational windows
• Provides manual reset functionality via a dedicated MR input pin
• Features an open-drain/reset output requiring an external pull-up resistor
• Guarantees valid reset output assertion at low supply voltages down to 1.2V

Supervisors Applications

• Microprocessor (µP) power supply supervision in digital systems
• Watchdog timer implementation for fault detection
• Manual reset control interfaces
• Low-voltage system monitoring where open-drain outputs are required

Supervisors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm the specific suffix 'T' indicates tape-and-reel packaging if required by assembly processes. Check RoHS compliance status against current regulatory standards. Ensure the open-drain output configuration matches the target circuit design requirements before procurement.

Supervisors Selection Notes

Select this part when an open-drain reset output is preferred over push-pull configurations. The MAX6323 series offers a push-pull alternative; choose MAX6324 specifically for open-drain needs. Verify that the 4.63V threshold aligns with the monitored rail. Consider the 180ms reset delay for timing-sensitive applications. Ensure the operating temperature range meets environmental specifications.

Supervisors Part Context

This component belongs to the MAX6323/MAX6324 family of µP supervisory circuits from Maxim Integrated. These devices combine voltage monitoring with watchdog functionality. The MAX6324 variant is distinguished by its open-drain output structure, contrasting with the MAX6323's push-pull output. Both share similar watchdog and manual reset features within the SOT-23-6 package.

Supervisors Replacement Considerations

The MAX6323HUT46+T serves as a functional substitute but utilizes a push-pull output instead of open-drain. Designers must account for this interface difference when swapping components. No other direct pin-compatible substitutes with identical output structures are confirmed in public documentation.