CAT1022ZI-28-GT3

Supervisors Overview

The CAT1022ZI-28-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU supervision with integrated 2K EEPROM storage. It operates within a supply voltage range of 2.7 V to 5.5 V and features a threshold voltage of 2.8 V. The device utilizes an open-drain output type and includes manual reset functionality alongside a watchdog timer. It is housed in an 8-pin MSOP package and supports SMD/SMT installation. The component provides a reset delay time of 200 ms and monitors a single input channel.

Supervisors Feature Summary

• Integrates CPU supervision with non-volatile 2K EEPROM memory
• Includes built-in watchdog timer for system reliability
• Supports manual reset input for user-controlled recovery

Supervisors Applications

• CPU power supply monitoring in embedded systems
• System reset management in industrial control units
• Data retention backup using integrated EEPROM

Supervisors Procurement Notes

Verify end-of-life status as the component is marked as discontinued. Confirm availability through authorized distributors or secondary markets. Check RoHS compliance details and ensure compatibility with existing PCB footprints. Validate that the 8-pin MSOP package matches design requirements before procurement.

Supervisors Selection Notes

Select this part when combined supervision and small data storage are required in a compact form factor. Ensure the 2.8 V threshold aligns with the target system voltage levels. Consider the open-drain output configuration for interface compatibility with downstream logic circuits.

Supervisors Part Context

This component belongs to the CAT1022 series of supervisory circuits from onsemi. It combines voltage monitoring capabilities with serial EEPROM functionality, targeting applications requiring both system integrity checks and persistent data storage in space-constrained designs.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as CAT1022ZI-25-GT3 or CAT1022ZI-30-GT3, if different threshold voltages are needed. Verify functional equivalence regarding watchdog and EEPROM specifications.