DS1238-10

Supervisors Overview

The DS1238-10 is a MicroMonitor circuit designed to monitor power supply voltage and control external switches. It operates within a 4.5 V to 5.5 V range with a 10% monitoring threshold. The device features a manual reset input, watchdog timer, and battery backup switch. It provides active high/low, open drain, and push-pull outputs. Reset delay is 150 ms. Operating temperature spans 0°C to +70°C. Supply current is 4 mA. Package options include 16-pin DIP and SOIC.

Supervisors Feature Summary

• Holds microprocessor in check during power transients
• Converts CMOS SRAM into nonvolatile memory
• Unconditionally write-protects memory when power supply is out of tolerance
• Debounces pushbutton reset

Supervisors Applications

• Microprocessor applications requiring orderly shutdown
• Systems needing battery backup for SRAM retention
• High current applications controlled by external power switches

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package variant matches design requirements. Check datasheet for specific suffix definitions regarding temperature range and monitoring accuracy. Ensure replacement components maintain pin compatibility and electrical specifications.

Supervisors Selection Notes

Select based on required monitoring accuracy and package type. Choose between standard or industrial temperature ranges. Verify output configuration needs for system integration. Consider external switch control capabilities for high current loads. Evaluate battery backup switch functionality for data retention requirements.

Supervisors Part Context

Part of the DS1238A series offering comprehensive power management supervision. Compatible with MAX691 for pin-for-pin interchangeability. Provides integrated solutions for reset generation, watchdog timing, and memory protection in embedded systems.

Supervisors Replacement Considerations

DS1238A-5 serves as a direct substitute with 5V threshold. DS1238S+T&R offers surface mount alternative. Verify functional equivalence before substitution.