CAT1027ZI-25-GT3

Supervisors Overview

The CAT1027ZI-25-GT3 is a dual-channel voltage supervisory circuit manufactured by onsemi, designed for CPU system protection. It integrates a 2-kbit EEPROM within the supervisor package. The device operates with a supply voltage range of 2.7 V to 5.5 V and features an open-drain output. Key electrical parameters include a reset delay time of 5 µs and a typical operating supply current of 10 µA. It supports manual reset functionality and includes a watchdog timer. The component is housed in an 8-pin MSOP package and is rated for operation between -40°C and +85°C.

Supervisors Feature Summary

• Integrates a 2-kbit EEPROM alongside dual-channel voltage supervision capabilities
• Provides manual reset input functionality for user-initiated system resets
• Includes an integrated watchdog timer for automated fault recovery
• Features low power consumption suitable for battery-operated applications

Supervisors Applications

• CPU system monitoring and protection
• Embedded systems requiring combined supervision and non-volatile storage
• Industrial control units needing watchdog timer functionality

Supervisors Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via the official datasheet before integration. Check for end-of-life notices or obsolescence warnings as availability may vary. Ensure the specific suffix matches design requirements for package and temperature grade. Validate pinout compatibility with existing PCB layouts during the sourcing phase.

Supervisors Selection Notes

Select this component when both dual-channel voltage supervision and small-scale data storage are required in a single package. Compare against single-function supervisors if EEPROM capacity exceeds project needs. Consider the MSOP package size constraints relative to available board space. Verify that the 5 µs reset delay meets the timing requirements of the target microcontroller. Assess whether the manual reset feature aligns with the system's user interface design.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits from onsemi. The series combines power management functions with memory storage to reduce component count in compact designs. Similar parts in the family may offer different voltage thresholds or EEPROM sizes. The ZI suffix typically denotes the MSOP package and industrial temperature range specifications.

Supervisors Replacement Considerations

CAT1027ZI-25-GT3 is functionally similar to CAT1027WI-25-GT3, differing primarily in package type (MSOP vs SOIC-Wide). Verify pinout compatibility when substituting between package variants. No other direct cross-references are confirmed in public documentation.