CAT1023WI-28-G

Supervisors Overview

The CAT1023WI-28-G is a supervisory circuit manufactured by onsemi, designed for microcontroller-based systems. It integrates a 2k-bit serial EEPROM memory with an I²C interface and a voltage supervisor featuring brown-out protection. The device operates within a supply voltage range of 2.7 V to 5.5 V, with a threshold voltage of 2.8 V and an undervoltage threshold of 2.85 V. It includes a watchdog timer and manual reset capability. Packaged in an SOIC-8 surface-mount format, it supports operation temperatures from -40°C to +85°C and draws a working supply current of 3 mA.

Supervisors Feature Summary

• Integrates 2k-bit serial EEPROM memory with I²C bus interface
• Provides precision power supply voltage monitoring with brown-out protection
• Includes built-in watchdog timer and manual reset input functionality

Supervisors Applications

• Microcontroller system supervision
• Memory protection during power up/down events
• Brown-out protection circuits

Supervisors Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the 'WI' package code corresponds to the SOIC-8 surface-mount variant. Ensure the '28' designation matches the required 2.8 V threshold voltage for the target application design. Cross-reference the datasheet revision to confirm electrical characteristics and pinout configurations before integration.

Supervisors Selection Notes

Select this component when a combined solution for non-volatile data storage and system supervision is required. The integrated I²C interface simplifies connectivity compared to separate components. The fixed 2.8 V threshold suits 3V and 5V system architectures. Consider the SOIC-8 package for surface-mount assembly constraints and verify that the 2k-bit memory capacity meets the application's data retention needs.

Supervisors Part Context

This part belongs to the CAT1023 series, which combines supervisory functions with serial EEPROM memory. The series offers various threshold voltages and package options to accommodate different system requirements. The CAT1023WI-28-G specifically addresses applications needing reliable power monitoring alongside small-scale data storage in a compact surface-mount footprint.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.