CAT1023ZI-25-T3

Supervisors Overview

The CAT1023ZI-25-T3 is a supervisory circuit manufactured by onsemi, designed for microcontroller-based systems. It integrates a 2k-bit serial EEPROM with I²C interface and a voltage supervisor featuring manual reset functionality. The device operates within a supply voltage range of 2.7 V to 5.5 V, with a threshold voltage of 2.5 V and an overvoltage threshold of 2.7 V. It supports a minimum undervoltage threshold of 2.55 V and draws 3 mA during operation. Packaged in TSSOP-8, it functions between -40°C and +85°C.

Supervisors Feature Summary

• Integrates 2k-bit CMOS EEPROM with I²C serial interface for data storage
• Provides system power supervision with brown-out protection and manual reset capability
• Includes built-in inadvertent write protection via dedicated pin

Supervisors Applications

• Microcontroller-based system memory and supervision
• Industrial control units requiring data retention
• Consumer electronics with low-power monitoring needs

Supervisors Procurement Notes

Verify the specific suffix ZI indicates the TSSOP-8 package and reel packaging configuration. Confirm RoHS compliance status through official documentation before integration. Ensure the 2.5 V threshold aligns with target system voltage requirements. Check for obsolescence notices or lifecycle changes directly from onsemi channels prior to finalizing procurement plans.

Supervisors Selection Notes

Select this component when both non-volatile memory and voltage supervision are required in a single package. The I²C interface simplifies board layout compared to parallel alternatives. Verify that the manual reset feature meets system startup requirements. Consider the TSSOP-8 footprint constraints against available PCB space. Compare operating temperature ranges against environmental conditions.

Supervisors Part Context

Part of the CAT102x series combining EEPROM and supervisory functions. Similar models include CAT1021 and CAT1022, which may differ in package type or specific feature sets like watchdog timers. The CAT1023 specifically offers manual reset options distinct from automatic-only variants.

Supervisors Replacement Considerations

CAT1021ZI-25-T3 and CAT1022ZI-25-T3 are related series members. Verify package compatibility and functional equivalence regarding reset mechanisms before substitution.