CAT1640LI-25-G

Supervisors Overview

The CAT1640LI-25-G is a CMOS serial EEPROM with 32-Kb (4K x 8) memory density, manufactured by onsemi. It utilizes an SPI interface for data communication and operates within a supply voltage range of 1.8 V to 5.5 V. The device supports write cycles of 1 million and retains data for 100 years. It functions across an industrial temperature range from -40°C to +85°C. Packaged in an 8-pin SOIC, it features low power consumption with active read current up to 3 mA. This component serves as non-volatile storage for microcontroller systems requiring reliable data retention.

Supervisors Feature Summary

• Integrated SPI serial interface for efficient data transfer
• High endurance with one million write/erase cycles
• Long-term data retention capability for critical applications

Supervisors Applications

• Microcontroller-based system configuration storage
• Calibration data preservation in embedded devices
• Parameter logging in industrial control units

Supervisors Procurement Notes

Verify the specific suffix 'LI' against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure the part number matches the exact revision required for your design. Cross-reference with authorized distributors to confirm availability status, as end-of-life notices may affect long-term sourcing. Validate RoHS compliance documentation prior to procurement.

Supervisors Selection Notes

Select this component when a small, non-volatile memory solution is needed for storing calibration constants or user settings. The SPI interface reduces pin count compared to parallel alternatives. Consider the operating voltage range compatibility with the host microcontroller. Evaluate the package size constraints against the available PCB real estate for the 8-pin SOIC form factor.

Supervisors Part Context

This part belongs to the CAT25/CAT16 series of serial EEPROMs from onsemi. These devices are designed for general-purpose data storage in consumer and industrial electronics. The series offers various memory densities and interface options, providing flexibility for different system requirements while maintaining consistent electrical characteristics and reliability standards across the family.

Supervisors Replacement Considerations

Check for direct substitutes within the same product line that offer identical pinouts and electrical specifications. Verify if alternative manufacturers provide compatible SPI EEPROMs with matching voltage and speed parameters. Ensure any replacement maintains the same memory organization and package dimensions to fit existing footprints without redesign.