CAT1161WI-45-G

Supervisors Overview

The CAT1161WI-45-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a 2.5 V threshold voltage and supports active high, active low, and open drain output types. The device includes manual reset functionality and is housed in an SOIC-wide-8 surface mount package. This component integrates 16k EEPROM memory for data retention.

Supervisors Feature Summary

• Integrates non-volatile 16k EEPROM memory for system data storage alongside supervision functions.
• Provides configurable output states including active high, active low, and open drain options.
• Includes manual reset capability for controlled system recovery operations.

Supervisors Applications

• CPU power supply monitoring
• Embedded system reset management
• Data retention in microcontroller systems

Supervisors Procurement Notes

Verify current availability status as the component may be discontinued or subject to limited supply. Confirm RoHS compliance documentation and check for alternative packages if lead times are critical. Ensure the specific suffix matches design requirements before ordering.

Supervisors Selection Notes

Select this part when both voltage supervision and persistent data storage are required in a single package. Verify that the 2.5 V threshold aligns with the target supply rail. Consider the SOIC-8 footprint constraints and manual reset necessity during schematic capture.

Supervisors Part Context

This component belongs to the CAT1161 series of supervisory circuits which combine voltage monitoring with embedded memory. It serves as a compact solution for systems needing both power integrity checks and configuration data preservation without requiring separate memory chips.

Supervisors Replacement Considerations

Check for CAT1161 variants with different thresholds or packages. Verify functional compatibility with existing board layout and software drivers before substitution.