CAT1021WI-30-G

Supervisors Overview

The CAT1021WI-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 I²C interface capabilities. The device monitors a single input voltage with a threshold range of 3 V to 3.15 V. It features active high, active low, and open drain output types, along with manual reset functionality and a built-in watchdog timer. Operating within a supply voltage range of 2.7 V to 5.5 V, it ensures system stability during power-up and down events.

Supervisors Feature Summary

• Integrates a 2k-bit CMOS EEPROM with I²C serial interface for data storage alongside system supervision.
• Provides precise power supply monitoring with brown-out protection to safeguard memory and controllers.
• Includes a watchdog timer and manual reset input to enhance system reliability and fault recovery.

Supervisors Applications

• Microcontroller-based embedded systems requiring integrated memory and supervision
• Industrial control units needing brown-out protection
• Consumer electronics utilizing I²C communication interfaces

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as this specific variant may be obsolete. Ensure the SOIC-8 package matches design requirements before procurement.

Supervisors Selection Notes

Select this component when a combined solution for non-volatile data storage and power supervision is required. The fixed 3V threshold suits 3V and 3.3V logic systems. Verify that the I²C bus speed and EEPROM endurance meet application specifications.

Supervisors Part Context

This part belongs to the CAT1021 series, which combines supervisory circuits with serial EEPROMs. It is part of onsemi's portfolio for complete memory and supervisory solutions in microcontroller environments, offering low-power CMOS technology and various package options including SOIC-8.

Supervisors Replacement Considerations

Check for CAT1021WI-30-GT3 equivalents from other manufacturers. Verify pin compatibility and electrical parameters such as threshold voltage and operating temperature range before substitution.

Supervisors FAQ

What is the maximum operating supply voltage?

The maximum operating supply voltage is 5.5 V.

Does the device include a watchdog timer?

Yes, the CAT1021WI-30-GT3 includes a built-in watchdog timer.