MAX6321HPUK31AY-T

Supervisors Overview

The MAX6321HPUK31AY-T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.7V to 5.5V and features a fixed reset threshold voltage of 3.08V. The device provides a push-pull active-low reset output with a typical timeout period of 280ms. It includes a manual reset input and supports an open-drain bidirectional output compatible with Motorola 68HC11 systems. The component is housed in a 5-pin SOT-23 package and functions across an industrial temperature range of -40°C to +125°C.

Supervisors Feature Summary

• Integrates power supply monitoring with watchdog timer functionality for system reliability
• Provides flexible reset output configurations including push-pull, open-drain, and bidirectional modes
• Features a manual reset input for user-initiated system control

Supervisors Applications

• Microprocessor power supply supervision in digital systems
• Watchdog timer implementation for embedded controllers
• Motorola 68HC11 compatible reset circuits

Supervisors Procurement Notes

Verify the specific suffix 'AY' against official manufacturer documentation to confirm the exact reset threshold tolerance and temperature grade. Confirm RoHS compliance status as indicated in current datasheets. Check production lifecycle status directly with the manufacturer or authorized distributors, as availability may vary. Ensure the ordering information matches the required package type and electrical specifications before procurement.

Supervisors Selection Notes

Select this component when a fixed 3.08V reset threshold is required for low-voltage microprocessor applications. Consider the integrated watchdog feature if system stability monitoring is necessary. Evaluate the bidirectional output capability if compatibility with legacy bus standards like Motorola 68HC11 is needed. Verify that the operating temperature range meets the environmental requirements of the target application.

Supervisors Part Context

This part belongs to the MAX6316–MAX6322 family of 5-pin μP supervisory circuits. These devices are designed to monitor power supplies and processor activity in digital systems. The family offers various combinations of reset outputs and timeout periods, packaged in a miniature SOT-23 form factor suitable for space-constrained designs.

Supervisors Replacement Considerations

Compatible substitutes within the same family include MAX6321HPUK31A+T and MAX6321HPUK31AW+T, provided they match the required threshold and package specifications.