CAT1163WI-28-GT3

Supervisors Overview

The CAT1163WI-28-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 16K I2C serial EEPROM with the supervisor functionality in an 8-pin SOIC-Wide package. The device features a 2.8 V threshold voltage and supports a supply voltage range from 2.7 V to 6 V. Key electrical parameters include a reset delay time of 270 ms, a watchdog timer, manual reset capability, and an operating current of 3 mA. It operates within a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates 16K I2C serial EEPROM with CPU supervision
• Includes built-in watchdog timer function
• Supports manual reset input
• Provides open drain output configuration

Supervisors Applications

• CPU system monitoring
• Embedded controller power management
• Industrial control systems

Supervisors Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued or subject to supply constraints. Confirm RoHS compliance status and check for specific ordering suffixes that may affect packaging or lead times. Ensure the supplier provides valid traceability documentation matching the manufacturer's specifications.

Supervisors Selection Notes

Select this component when both voltage supervision and non-volatile data storage are required in a single package. The 2.8 V threshold suits 3.3 V logic systems. Consider the SOIC-Wide package for ease of handling. Verify compatibility with I2C bus speeds and ensure the watchdog timeout meets system safety requirements.

Supervisors Part Context

This part belongs to the CAT1163 series of supervisory circuits which combine memory and monitoring functions. It is distinct from variants with different thresholds or packages. The 'G' suffix typically indicates lead-free and RoHS compliance. It serves as a compact solution for systems needing both reset generation and persistent data retention.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: CAT1163WI-28-G, CAT1163J-28.