ADM1232ARN

Supervisors Overview

The ADM1232ARN is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It monitors microprocessor supply voltage and detects processor lockups. The device features an adjustable precision voltage monitor with options for 4.5 V and 4.75 V thresholds. It includes an adjustable strobe monitor with selectable delays of 150 ms, 600 ms, or 1.2 seconds. The component operates within a temperature range of -40°C to +85°C and requires no external components.

Supervisors Feature Summary

• Pin-compatible with MAX1232 and Dallas DS1232
• Adjustable precision voltage monitoring
• Configurable strobe monitor timing

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix 'ARN' against the official Analog Devices datasheet to confirm package type and electrical characteristics. Ensure compatibility with existing MAX1232 or DS1232 footprints if used as a drop-in replacement. Confirm RoHS compliance status for the specific manufacturing batch before integration into production designs.

Supervisors Selection Notes

Select this component when pin compatibility with legacy MAXIM or Dallas supervisors is required. Choose based on the necessary voltage threshold (4.5 V or 4.75 V) and strobe delay requirements (150 ms, 600 ms, or 1.2 sec). Verify that the operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

The ADM1232 series belongs to Analog Devices' line of microprocessor monitoring circuits. It serves as a direct functional alternative to industry-standard parts like the MAX1232 and DS1232. The series provides essential system protection by ensuring stable power delivery and detecting software hangs in embedded systems.

Supervisors Replacement Considerations

Direct substitutes include ADM1232ARMZ and ADM1232AARNZ-REEL. These variants maintain pin compatibility while potentially offering updated packaging or compliance statuses.