CAT1640YI-25

Supervisors Overview

The CAT1640YI-25 is a supervisory circuit manufactured by onsemi, designed to monitor voltage levels and provide reset signals for microprocessors. It integrates a 64K CMOS EEPROM accessible via an I2C serial interface. The device operates within a supply voltage range of 2.7 V to 5.5 V, with a fixed threshold voltage of 2.5 V. It features a manual reset input and an open-drain output. The component is housed in an 8-pin TSSOP package and supports industrial temperature ranges from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 64K nonvolatile memory with I2C serial interface
• Provides voltage supervision with manual reset capability
• Operates with low power consumption suitable for battery backup

Supervisors Applications

• CPU monitoring in embedded systems
• Data storage protection in portable devices
• Industrial control system reset management

Supervisors Procurement Notes

Verify the specific suffix GT3 for tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current lifecycle status as components may be subject to discontinuation or obsolescence notices. Ensure compatibility with existing I2C bus protocols and voltage levels in the target design.

Supervisors Selection Notes

Select this component when both voltage supervision and persistent data storage are required in a single package. The integrated EEPROM eliminates the need for external memory chips, reducing board space. Verify that the 2.5 V threshold aligns with the system's minimum operating voltage requirements. Consider the TSSOP-8 package constraints for PCB layout and thermal management.

Supervisors Part Context

This part belongs to the CAT1640 series of supervisory circuits with integrated EEPROM. It is categorized under Power Management ICs (PMIC) specifically as Voltage Supervisory devices. The series is designed for applications requiring reliable system reset and data retention during power fluctuations.

Supervisors Replacement Considerations

Check for direct pin-compatible substitutes within the same family, such as variants with different EEPROM sizes or voltage thresholds. Verify if newer revisions offer improved performance or extended lifecycle availability. Cross-reference specifications carefully to ensure functional equivalence.