CAT1021WI-25-GT3

Supervisors Overview

The CAT1021WI-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 2.55 V. The device is housed in an 8-SOIC package with surface mount installation. Key electrical parameters include a reset delay time of 130 ms minimum and a quiescent current of 10 uA. It supports manual reset functionality and provides open drain or open collector output types. The component is rated for operation between -40°C and +85°C.

Supervisors Feature Summary

• Integrates voltage supervision with non-volatile memory capabilities for system data storage
• Provides configurable active high or active low reset outputs via open drain/open collector interface
• Supports manual reset input for external control of the reset state

Supervisors Applications

• CPU power supply monitoring in embedded systems
• Data retention management during power transitions
• System reset generation for microcontroller units

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as this part is obsolete. Confirm RoHS compliance status and check for available substitutes like the CAT1025WI-25-GT3 if production continuity is required. Ensure packaging specifications match legacy requirements when sourcing from secondary markets.

Supervisors Selection Notes

Select this component for applications requiring integrated EEPROM alongside voltage supervision. Compare against the CAT1025 series for potential pin-compatible alternatives. Verify that the 2.55 V threshold aligns with the target system's operating voltage. Consider the 8-SOIC package constraints for PCB layout design.

Supervisors Part Context

This part belongs to the CAT1021 family of supervisory circuits which combine voltage monitoring with 2K-bit EEPROM. The 'W' suffix indicates the SOIC package variant, while 'I' denotes the industrial temperature range. The '-GT3' suffix specifies tape and reel packaging for automated assembly processes.

Supervisors Replacement Considerations

The CAT1025WI-25-GT3 is listed as a parameter-equivalent alternative. Verify functional compatibility regarding memory integration and output configuration before substitution.