CAT1023WI-30-GT3

Supervisors Overview

The CAT1023WI-30-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU and microcontroller-based systems. It integrates a 2k-bit serial EEPROM with an I²C interface, a manual reset input, and a watchdog timer. The device operates within a supply voltage range of 2.7 V to 5.5 V, featuring a fixed under-voltage threshold of 3 V and an over-voltage threshold of 3.15 V. It provides a reset delay time of 200 ms and supports active high, active low, or open drain outputs. Packaged in an SOIC-8 surface-mount format, it functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a 2k-bit serial EEPROM with I²C communication capability for data storage alongside system supervision.
• Includes a built-in watchdog timer to monitor system software execution and prevent lockups.
• Features a manual reset input allowing external control over the system reset state.
• Provides flexible output configurations including active high, active low, and open drain options.

Supervisors Applications

• Microcontroller-based embedded systems requiring power monitoring and non-volatile memory
• Industrial control units utilizing I²C interfaces for configuration data storage
• Consumer electronics devices needing brown-out protection and system reset management

Supervisors Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm RoHS compliance status as indicated in official documentation. Check current lifecycle status, as availability may be limited or subject to obsolescence notices. Ensure packaging specifications match application requirements for surface-mount assembly processes.

Supervisors Selection Notes

Select this component when a combined supervisory function and small-scale non-volatile memory are required in a single package. The fixed 3V threshold suits 3V logic systems, while the I²C interface simplifies board routing compared to parallel alternatives. Consider the SOIC-8 footprint for space-constrained designs requiring robust power management features.

Supervisors Part Context

This part belongs to the CAT102x series of supervisory circuits from onsemi, which combine power monitoring with serial EEPROM functionality. The 'W' suffix denotes the SOIC-8 package variant, while 'I' indicates the industrial temperature range. The '30' specifies the 3V threshold version, distinguishing it from other voltage options within the family.

Supervisors Replacement Considerations

CAT1021WI-30-GT3: Similar supervisory features but lacks integrated EEPROM; suitable if memory is not required. CAT1022WI-30-GT3: Includes EEPROM but differs in specific pinout or feature set; verify compatibility before substitution. Cross-reference datasheets for electrical parameter alignment.