CAT1023WI-45-GT3

Supervisors Overview

The CAT1023WI-45-GT3 is a supervisory circuit manufactured by onsemi, integrating a 2k-bit I2C serial CMOS EEPROM with a system power supervisor. It operates within a voltage range of 2.7 V to 5.5 V and features a 4.5 V under-voltage threshold with a 4.75 V over-voltage threshold. The device includes a watchdog timer, manual reset input, and open-drain output in an SOIC-8 package. It supports industrial temperature ranges from -40°C to +85°C and consumes 3 mA during operation.

Supervisors Feature Summary

• Integrates a 2k-bit I2C serial EEPROM with brown-out protection for microcontroller-based systems
• Includes a watchdog timer and manual reset input for enhanced system reliability
• Features built-in inadvertent write protection via the WP pin
• Supports 400 kHz I2C bus communication with low power CMOS technology

Supervisors Applications

• Microcontroller-based system power management
• Embedded systems requiring non-volatile data storage and supervision
• Industrial control units needing brown-out protection

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status as specified in official datasheets. Check current lifecycle status, as this part may be obsolete or subject to change. Ensure packaging details match requirements for surface mount assembly processes.

Supervisors Selection Notes

Select this component when both voltage supervision and non-volatile memory are required in a single package. The 4.5 V threshold suits 5 V systems. Consider the SOIC-8 package for standard PCB layouts. Verify that the 400 kHz I2C speed meets system timing requirements. Compare against similar parts if different thresholds or packages are needed.

Supervisors Part Context

This part belongs to the CAT1023 series, which combines supervisory functions with I2C EEPROM memory. It is designed for applications where space is limited and multiple functions are needed. The series offers various threshold voltages and package options to fit different design constraints while maintaining low power consumption.

Supervisors Replacement Considerations

Check for CAT1023 variants with different suffixes indicating package changes (e.g., TSSOP, MSOP) or threshold adjustments. Verify compatibility with existing I2C addresses and pinouts before substitution.