CAT1024ZD4I-42T3

Supervisors Overview

The CAT1024ZD4I-42T3 is a supervisory circuit integrating a 2k-bit serial CMOS EEPROM with a manual reset function. It operates within a voltage range of 2.7 V to 5.5 V and features a 400 kHz I²C bus interface. The device includes a precision power supply monitor with a 4.2 V threshold, providing active high or low reset signals. It utilizes low-power CMOS technology and offers a 16-byte page write buffer. The component supports industrial temperature ranges and ensures data retention for extended periods.

Supervisors Feature Summary

• Integrates a 2k-bit serial EEPROM with a system power supervisor in a single low-power CMOS package
• Provides brown-out protection and manual reset capabilities via an I²C compatible interface
• Includes built-in inadvertent write protection mechanisms to safeguard memory integrity

Supervisors Applications

• Microcontroller-based systems requiring integrated memory and supervision
• Portable electronic devices utilizing low-voltage power supplies
• Industrial control systems needing reliable data retention during power fluctuations

Supervisors Procurement Notes

Verify the exact suffix and package configuration against official datasheets before procurement. Confirm availability status as components may be subject to discontinuation or limited production runs. Ensure compatibility with existing PCB footprints and I²C bus requirements. Check for specific environmental certifications if required for the target application market.

Supervisors Selection Notes

Select this component when a combined solution for non-volatile storage and power monitoring is required. Consider the 4.2 V threshold suitability for the specific system voltage rails. Evaluate the TSSOP-8 package constraints against board space limitations. Verify that the I²C address and timing parameters align with the host controller specifications.

Supervisors Part Context

This part belongs to the CAT1024 series from onsemi, designed for embedded applications. It complements similar models like the CAT1025 which adds a dedicated write protect pin. The series addresses the need for compact, cost-effective solutions in consumer and industrial electronics where power integrity and data persistence are critical design factors.

Supervisors Replacement Considerations

Direct substitutes include other CAT1024 variants with different threshold voltages or packages. Cross-reference with CAT1025 models if write protection functionality is also required. Verify pinout compatibility and electrical characteristics before substituting with generic equivalents.