CAT1027ZI-45-GT3

Supervisors Overview

The CAT1027ZI-45-GT3 is a Voltage Supervisory circuit manufactured by onsemi, designed for CPU supervision applications. It integrates a 2Kb EEPROM within the supervisory logic. The device operates with a single input and features an open collector/drain output type. Key electrical parameters include a maximum supply voltage of 5.5 V and a minimum operating voltage of 2.7 V. The under-voltage threshold is specified at 4.5 V, while the over-voltage threshold is 4.75 V. The unit consumes 3 mA during operation and supports a power dissipation of 1 W. It includes a manual reset function and a watchdog timer. The component is housed in an MSOP-8 package and functions within a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates 2Kb EEPROM memory alongside voltage supervision logic
• Includes manual reset capability and watchdog timer functionality
• Provides dual threshold monitoring for under-voltage and over-voltage conditions

Supervisors Applications

• CPU system supervision
• Voltage monitoring in embedded systems
• Data retention protection via integrated EEPROM

Supervisors Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited distribution channels. Confirm package integrity and RoHS compliance details prior to integration. Cross-reference ordering information with official manufacturer documentation to ensure correct suffix identification. Check for any specific handling requirements related to the MSOP-8 surface mount package.

Supervisors Selection Notes

Select this component when simultaneous voltage supervision and non-volatile data storage are required in a compact form factor. The MSOP-8 package suits space-constrained designs. Ensure the 5.5 V maximum supply rating aligns with the target system voltage. Verify that the 3 mA operating current fits within the overall power budget constraints of the application.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits from onsemi. The series typically combines voltage monitoring with EEPROM capabilities for system reliability. The 'ZI' suffix indicates the MSOP-8 package variant, distinguishing it from other package options like SOIC-Wide available in the same family.

Supervisors Replacement Considerations

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