CAT1026YI-25-GT3

Supervisors Overview

The CAT1026YI-25-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 2.7 V to 5.5 V and features a threshold voltage of 2.5 V. The device includes an integrated 2-kbit I²C serial CMOS EEPROM for data storage. It is housed in an MSOP-8 surface-mount package and supports operation across a temperature range of -40°C to +85°C. Key electrical characteristics include a maximum power dissipation of 1 W and a typical operating supply current of 3 mA.

Supervisors Feature Summary

• Integrates dual functionality as both a voltage supervisor and non-volatile memory controller
• Provides reliable system reset generation based on monitored supply voltage levels
• Includes embedded 2-kbit EEPROM accessible via standard I²C serial interface
• Supports low-power operation suitable for battery-backed or energy-efficient designs

Supervisors Applications

• CPU voltage supervision in embedded systems
• Data retention management using integrated EEPROM
• Industrial control board power monitoring
• Consumer electronics power management units

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the MSOP-8 footprint matches your PCB layout requirements. Check for any recent product change notices regarding pinout or electrical specifications. Validate that the 2.5 V threshold aligns with your system's voltage rail requirements.

Supervisors Selection Notes

Select this component when a combined voltage supervision and small data storage solution is required. The MSOP-8 package offers space efficiency for compact designs. Verify compatibility with your microcontroller's I²C bus speed and voltage levels. Consider the 2.5 V threshold relative to your minimum operating voltage. Evaluate the 3 mA supply current against your total power budget constraints.

Supervisors Part Context

This part belongs to the CAT1026 series from onsemi, which combines supervisory functions with serial EEPROM capabilities. The series is designed for applications requiring system integrity monitoring alongside persistent data storage. Variants differ primarily in threshold voltages and package types. The YI suffix typically denotes industrial temperature range and specific package style.

Supervisors Replacement Considerations

Direct substitutes may include other CAT1026 variants with different threshold voltages if voltage levels permit. Cross-reference with CAT1022 or CAT1021 series parts only if EEPROM functionality is not required. Verify pin compatibility before substituting with similar supervisory ICs from other manufacturers.