DS1238A-10

Supervisors Overview

The DS1238A-10 is a precision real-time clock (RTC) integrated with a power monitor and watchdog timer. It operates within a supply voltage range of 4.5 V to 5.5 V, featuring an under-voltage threshold of 4.25 V and an over-voltage threshold of 4.5 V. The device includes a manual reset input, a 150 ms reset delay, and supports battery backup switching. It functions in temperatures from 0°C to +70°C, drawing 4 mA during operation.

Supervisors Feature Summary

• Integrates a precision real-time clock with power monitoring and watchdog timer capabilities
• Provides automatic system reset generation upon detection of power failures or brown-out conditions
• Supports manual reset input for user-initiated system control

Supervisors Applications

• Embedded systems requiring reliable timekeeping and power supervision
• Industrial control units needing watchdog timer functionality
• Data logging equipment with battery backup requirements

Supervisors Procurement Notes

Verify the specific suffix (e.g., N, AS) against the datasheet to confirm package type and temperature range. Confirm availability status as some variants may be discontinued or have limited stock. Ensure the selected part matches the required voltage thresholds and interface specifications for the target application design.

Supervisors Selection Notes

Select this component when a combined RTC and supervisor solution is required to reduce board space. Verify that the 5V operating range aligns with the system power rails. Consider the PDIP-16 package constraints if surface mount alternatives are preferred, noting that other packages may exist within the family.

Supervisors Part Context

This part belongs to the DS1238A series of supervisory circuits manufactured by Analog Devices/Maxim Integrated. It is categorized under PMIC - Power Management ICs and Supervisory Circuits. The device serves as a comprehensive solution for system protection and time management in single-supply environments.

Supervisors Replacement Considerations

Check for DS1238A-5 or DS1238A-10+ variants for pin-compatible options. Verify functional equivalence regarding watchdog timeout periods and reset delays before substitution.