CAT1022LI-30-G

Supervisors Overview

The CAT1022LI-30-G is a supervisory circuit manufactured by onsemi, integrating a 2-kbit serial CMOS EEPROM with I2C interface capabilities. It features a manual reset function and a watchdog timer to monitor system integrity. The device operates within a supply voltage range of 2.7 V to 5.5 V, with a specific threshold voltage of 3.0 V for the monitored input. It supports five monitored inputs and utilizes an open collector/drain output type. The component is housed in a TSSOP-8 package, designed for surface mount installation, and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 2-kbit serial EEPROM memory with I2C bus interface for data storage alongside supervisory functions.
• Includes manual reset capability and a dedicated watchdog timer to ensure system reliability and fault recovery.
• Provides multi-channel monitoring with support for five distinct monitored inputs via open collector outputs.

Supervisors Applications

• Microcontroller-based systems requiring integrated memory and power supervision
• Industrial control units needing watchdog timer protection
• Embedded devices utilizing I2C communication protocols

Supervisors Procurement Notes

Verify current availability status as this component may be subject to end-of-life notices or limited distribution channels. Confirm that the TSSOP-8 package and 3.0 V threshold specifications align precisely with the design requirements before procurement. Ensure compliance with RoHS standards and check for any recent product change notifications affecting ordering suffixes or manufacturing locations.

Supervisors Selection Notes

Select this part when a combined solution for non-volatile data storage and system supervision is required in space-constrained designs. The inclusion of both manual reset and watchdog functionalities reduces external component count. Verify that the I2C speed and voltage levels are compatible with the host microcontroller's logic thresholds and bus configuration.

Supervisors Part Context

This component belongs to the CAT1022 series of supervisory circuits, which combine EEPROM memory with power management features. It is part of onsemi's portfolio aimed at simplifying microcontroller system designs by integrating critical support functions into a single low-power CMOS package.

Supervisors Replacement Considerations

Direct substitutes include other variants within the CAT1022 family such as CAT1022YI-30-T3 or CAT1022LI-42-T3, provided the threshold voltage and package type match the application requirements. Cross-reference datasheets to confirm identical pinouts and electrical characteristics before substitution.