CAT1024WI-30-GT3

Supervisors Overview

The CAT1024WI-30-GT3 is a supervisory circuit integrating a 2k-bit serial CMOS EEPROM with a manual reset function. It operates within a supply voltage range of 2.7 V to 5.5 V and features a 3 V under-voltage threshold. The device utilizes an I²C bus interface for memory access, supporting up to 400 kHz clock speeds. It includes a 16-byte page write buffer and provides open-drain outputs for reset signaling. The component is housed in an SOIC-8 package and supports industrial temperature ranges from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a 2k-bit serial EEPROM with a precision power supply voltage monitor and manual reset capability.
• Features an I²C bus interface with a 16-byte page write buffer and built-in inadvertent write protection.
• Provides active high or low reset signals via open-drain outputs when supply voltage falls below the threshold.

Supervisors Applications

• Microcontroller-based systems requiring integrated memory and supervision
• Brown-out protection for system controllers and peripherals
• Data retention applications in portable electronics

Supervisors Procurement Notes

Verify the specific suffix 'GT3' confirms lead-free and RoHS compliance status directly with onsemi documentation. Confirm the 'W' indicates the wide-body SOIC-8 package variant. Check current lifecycle status as some CAT1024 variants are marked end-of-life; ensure availability matches production requirements before finalizing procurement plans.

Supervisors Selection Notes

Select this part when a combined solution for data storage and power monitoring is required to reduce board space. Choose the 30 suffix for 3 V threshold applications. Ensure the design accommodates the I²C interface timing and the manual reset input requirement. Verify that the open-drain output configuration aligns with the target microcontroller's reset pin specifications.

Supervisors Part Context

This component belongs to the CAT1024 family of supervisory circuits with integrated EEPROM. It shares architectural similarities with the CAT1025, which adds a hardware write protect pin. Unlike the CAT1022, it lacks a watchdog timer but offers manual reset control. The WI-30 designation specifies the 3 V threshold and SOIC-8 package type within the broader PMIC category.

Supervisors Replacement Considerations

CAT1024WI-30-T3: Same electrical specifications and package, differing only in tape-and-reel packaging quantity.

Supervisors FAQ

Does the CAT1024WI-30-GT3 include a watchdog timer?

No, the CAT1024 series does not include a watchdog timer; it provides only a voltage supervisor and manual reset functionality.

What is the maximum operating voltage for this device?

The maximum operating supply voltage is 5.5 V.