CAT1163WI-28-G

Supervisors Overview

The CAT1163WI-28-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU systems. It integrates a 16K serial EEPROM with power management functions. The device operates within a supply voltage range of 2.7 V to 6 V and features a threshold voltage of 2.8 V. It includes a manual reset input, an active high/low/open drain output, and a watchdog timer. The reset delay time is 270 ms, and the overvoltage threshold is 3 V. The component supports surface mount installation in an SOIC-8 package and functions across temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 16K serial EEPROM memory with hardware write protection capabilities
• Includes built-in watchdog timer for system stability monitoring
• Provides precision brown-out protection with configurable reset outputs

Supervisors Applications

• Microcontroller-based system supervision
• CPU power monitoring circuits
• Embedded systems requiring non-volatile data storage

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued. Confirm RoHS compliance status and check for obsolescence notices from onsemi. Ensure the SOIC-8 package variant matches design requirements. Validate electrical specifications against current application needs before procurement.

Supervisors Selection Notes

Select this component when both voltage supervision and 16K EEPROM storage are required in a single package. Compare with CAT1162 variants if watchdog functionality is unnecessary. Ensure the 2.8 V threshold aligns with the target system voltage. Verify temperature range suitability for the intended operating environment.

Supervisors Part Context

This part belongs to the CAT116x series of supervisory circuits combining memory and reset functions. It shares architectural similarities with CAT1161 and CAT1162 models but differs in specific feature sets like the presence of a watchdog timer. The WI suffix indicates wide-body SOIC packaging.

Supervisors Replacement Considerations

CAT1163WI-30-G offers a 3.0 V threshold alternative. CAT1162WI-28-G provides similar functionality without the watchdog timer.