CAT1025WI-25-GT3

Supervisors Overview

The CAT1025WI-25-GT3 is a supervisory circuit integrating a 2k-bit serial EEPROM with an I2C interface and a manual reset input. It operates within a voltage range of 2.7 V to 5.5 V, featuring a 2.5 V threshold for brown-out protection. The device supports a 400 kHz I2C bus and includes a 16-byte page write buffer with inadvertent write protection via the WP pin. It guarantees valid reset at VCC = 1 V and offers 1,000,000 program/erase cycles with 100-year data retention.

Supervisors Feature Summary

• Integrates a 2k-bit CMOS EEPROM with a 400 kHz I2C bus interface and system power supervisor with brown-out protection.
• Provides precision power supply monitoring with active high or low reset options, guaranteed valid reset down to 1 V.
• Includes built-in inadvertent write protection controlled by the WP pin and a 16-byte page write buffer.

Supervisors Applications

• Microcontroller-based systems requiring integrated memory and supervision
• Industrial control applications with extended temperature requirements
• Consumer electronics utilizing 5 V, 3.3 V, or 3 V power systems

Supervisors Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance and package integrity upon receipt. Check datasheet revisions for any functional updates. Ensure storage conditions meet manufacturer specifications to preserve data retention capabilities. Validate pin compatibility with target PCB layout before integration.

Supervisors Selection Notes

Select this component when both non-volatile memory and power supervision are required in a single package. The I2C interface simplifies board routing compared to SPI alternatives. Consider the 2.5 V threshold if operating near lower voltage limits. Evaluate the manual reset feature against automatic watchdog needs. Verify that the TSSOP-8 package fits the available footprint constraints.

Supervisors Part Context

This part belongs to the CAT1025 family of supervisory circuits with EEPROM. It shares features with variants like CAT1025ZI-25-T3 but differs in package type and suffix designation. The WI suffix indicates specific packaging and lead finish options. It serves as a compact solution for space-constrained embedded designs needing reliable power management and data storage.

Supervisors Replacement Considerations

CAT1025ZI-25-T3 offers similar functionality in a TSSOP-8 package. CAT1024YI-25-GT3 provides comparable supervision without the EEPROM integration. Verify pinout compatibility and electrical parameters before substitution. Check availability status as some variants may be discontinued.