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Datasheet
CAT24C64YI-GT3 – EEPROM Memory IC | 64Kbit, I2C Interface, 1MHz | TSSOP-8 Package
The CAT24C64YI-GT3 from onsemi is a high-performance 64Kbit (8192×8) CMOS Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) designed for data storage and system configuration in a wide range of applications, including industrial, automotive, and consumer electronics. Featuring an I2C-compatible interface, it supports Standard (100kHz), Fast (400kHz), and Fast-Plus (1MHz) bus modes, providing fast and reliable communication with microcontrollers and processors. The CAT24C64 incorporates a 32-byte page write buffer, hardware write protection, and on-chip noise suppression, ensuring robust and error-free performance in demanding environments.
Key Features

Memory Organization: 8192×8 bits (64Kbit total capacity)

Interface Type: I2C-compatible serial interface

I2C Protocol Support: Standard (100kHz), Fast (400kHz), and Fast-Plus (1MHz) modes

Page Write Buffer: 32-byte page write capability for high-speed data throughput

Voltage Range: Wide operating range from 1.7V to 5.5V

Hardware Write Protection: Protects entire memory from accidental writes

External Address Pins: Allows addressing of up to eight devices on the same IC bus

Input Protection:

Schmitt triggers on I2C inputs for noise immunity

Noise suppression filters on SCL and SDA lines

Low Power CMOS Technology: Optimized for energy-efficient operation

Endurance & Retention:

Over 1,000,000 program/erase cycles per byte

100-year data retention for reliable long-term storage

Package Options: Available in TSSOP-8, SOIC-8, UDFN-8, and Ultra-thin WLCSP packages

Environmental Compliance:

Pb-Free, Halogen-Free, BFR-Free, and RoHS Compliant