CAT1023WI-30-G

Supervisors Overview

The CAT1023WI-30-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 system power supervisor featuring brown-out protection. The device operates within a supply voltage range of 2.7 V to 5.5 V, with a specific threshold voltage of 3 V for monitoring. It supports manual reset functionality and includes a watchdog timer. The component is housed in an 8-SOIC package and functions reliably across an operating temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a 2k-bit serial EEPROM with I²C bus interface for data storage
• Provides precision power supply voltage monitoring with brown-out protection
• Includes built-in inadvertent write protection via the WP pin
• Features a watchdog timer and manual reset capability

Supervisors Applications

• Microcontroller-based system supervision
• Embedded systems requiring non-volatile data storage
• Industrial control units with I²C connectivity

Supervisors Procurement Notes

Verify current availability status as distribution channels may list this part as obsolete or limited stock. Confirm RoHS compliance details through official datasheets before procurement. Ensure the SOIC-8 package variant matches your PCB footprint requirements. Cross-reference the manufacturer's latest product change notifications for any packaging or material updates.

Supervisors Selection Notes

Select this component when a combined solution for memory and voltage supervision is required. The fixed 3 V threshold suits 3.3 V and 5 V systems. Verify that the I²C address and timing parameters align with the host controller. Consider the 8-SOIC package dimensions for layout constraints. Ensure the operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

This part belongs to the CAT1023 series, which combines supervisory circuits with serial EEPROMs. It is distinct from the CAT1021 (with WP pin) and CAT1022 (without WP pin) variants in terms of specific feature integration, though they share similar core functionalities. The 'WI' suffix indicates the SOIC-8 package, while '30' denotes the 3 V threshold voltage.

Supervisors Replacement Considerations

Direct substitutes include other CAT1023 variants with different threshold voltages, such as CAT1023WI-28-G or CAT1023WI-45-G, if the voltage level differs. For packages, check CAT1023ZI-30-T3 for MSOP-8 compatibility. Verify electrical characteristics match before substitution.