ADM1232AN

Supervisors Overview

The ADM1232AN is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It monitors supply voltage and detects processor lockups. The device operates within a supply voltage range of 4.5 V to 5.5 V. It features adjustable precision voltage monitoring with selectable thresholds of 4.5 V or 4.75 V. The strobe monitor timeout is configurable to 150 ms, 600 ms, or 1.2 seconds. It utilizes an 8-pin DIP package and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Pin-compatible with MAX1232 and Dallas DS1232 for direct replacement
• Adjustable precision voltage monitor with selectable threshold options
• Configurable strobe monitor with multiple timeout selections
• Requires no external components for operation

Supervisors Applications

• Microprocessor supply voltage monitoring
• Microprocessor lockup detection
• External interrupt monitoring

Supervisors Procurement Notes

Verify the specific suffix configuration against the datasheet to ensure correct voltage thresholds and timeout settings. Confirm package type compatibility with existing PCB footprints. Check RoHS compliance status if required by manufacturing standards. Validate operating temperature range suitability for the intended environment.

Supervisors Selection Notes

Select this component when pin compatibility with legacy MAX1232 or DS1232 designs is required. Choose based on necessary voltage threshold (4.5 V vs 4.75 V) and strobe timeout duration (150 ms, 600 ms, or 1.2 s). Ensure the 8-pin DIP package fits the assembly constraints. Verify that the single-channel supervision meets system requirements.

Supervisors Part Context

The ADM1232 series belongs to Analog Devices' microprocessor supervisor family. It serves as a drop-in replacement for Maxim MAX1232 and Dallas Semiconductor DS1232 devices. The series provides essential reset generation and watchdog functionality for digital systems without requiring additional external passive components.

Supervisors Replacement Considerations

Direct substitutes include the MAX1232 and DS1232LP due to pin compatibility. Verify electrical parameters match before substitution.