CAT1023ZD4I-25-T2

Supervisors Overview

The CAT1023ZD4I-25-T2 is a supervisory circuit integrating a 2k-bit CMOS EEPROM with an I²C serial interface and a system power supervisor featuring brown-out protection. It operates within a voltage range of 2.7 V to 5.5 V and supports a 400 kHz I²C bus. The device includes a manual reset input, a watchdog timer, and active high or low reset outputs guaranteed at VCC = 1 V. It utilizes low-power CMOS technology and offers built-in inadvertent write protection via the WP pin. The component is available in 8-pin packages including SOIC, TSSOP, MSOP, and TDFN.

Supervisors Feature Summary

• Integrates 2k-bit serial EEPROM with I²C interface and precision power supply voltage monitor
• Provides system power supervision with brown-out protection and valid reset at low voltages
• Includes watchdog timer functionality and manual reset input capability
• Features built-in inadvertent write protection and low-power CMOS technology

Supervisors Applications

• Microcontroller-based systems requiring memory and supervision
• 5 V, 3.3 V, and 3 V system monitoring
• Industrial and extended temperature environment applications

Supervisors Procurement Notes

Verify the specific suffix ZD4I-25-T2 against official onsemi documentation to confirm package type, temperature grade, and threshold voltage settings. Ensure compatibility with existing design constraints regarding I²C bus speed and power supply ranges before procurement.

Supervisors Selection Notes

Select this component for designs needing combined data storage and power management in a single package. Consider the available threshold voltage options and package styles such as SOIC or TDFN based on space and thermal requirements. Verify that the 400 kHz I²C speed meets system communication needs.

Supervisors Part Context

This part belongs to the CAT102x family of supervisory circuits from onsemi. These devices are designed to provide complete memory and supervisory solutions for microcontroller-based systems, combining EEPROM storage with power monitoring functions in low-power CMOS technology.

Supervisors Replacement Considerations

Check for direct replacements within the CAT1023 series with different suffixes for varying packages or temperature ranges. Cross-reference with CAT1021 or CAT1022 if watchdog timer or write protection features differ from current design requirements.

Supervisors FAQ

What is the maximum operating voltage for the CAT1023ZD4I-25-T2?

The maximum operating voltage is 5.5 V.

Does the CAT1023ZD4I-25-T2 include a watchdog timer?

Yes, the device includes a watchdog timer feature.