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CAT24C64WI-GT3

CAT24C64WI-GT3

ON Semiconductor
Compatible 64-Kbit I2C EEPROM with industrial-grade options and common package choices for replacements.
Active19,615 in stock

Overview

The CAT24C64WI-GT3 is a 64-Kbit non-volatile CMOS EEPROM organized as 8,192 words of 8 bits each. It operates over a wide voltage range of 1.7V to 5.5V and supports the I2C protocol with clock frequencies up to 1 MHz. This industrial-grade memory component features a 32-byte page write buffer and hardware write protection to ensure data integrity in demanding environments.

Why Choose This Part

This device offers exceptionally low power consumption with a standby current of only 3 uA and a read current of 1 mA. It includes integrated noise suppression filters and Schmitt triggers on the I2C inputs to maintain signal integrity in electrically noisy industrial environments. Furthermore, it provides long-term reliability with 100-year data retention and a robust 1.7V to 5.5V operating supply range.

Applications

Microcontroller Configuration Storage
Ideal for storing calibration constants, device ID strings, and user preference settings that must persist through power cycles.
Industrial Data Logging
Used in sensor nodes to record periodic status updates or error logs, leveraging the 1,000,000 program/erase cycle endurance.
Network Interface Parameters
Stores MAC addresses and static IP configurations for ethernet or wireless communication modules.

Key Specifications

Technology EEPROM
Access Time 400 ns
Memory Size 64Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 1 MHz
Memory Interface I2C
Voltage - Supply 1.7V ~ 5.5V
Memory Organization 8K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To interface with this EEPROM, connect the SDA and SCL lines to a microcontroller I2C peripheral using external pull-up resistors. Ensure the WP pin is tied to GND for write operations or VDD to protect memory contents. Standard I2C libraries such as the Arduino Wire library or STM32 HAL I2C drivers can be used by targeting the device's 7-bit slave address.

Also Consider

AT24C64D-SSHM-T Microchip / Atmel - Provides similar industrial temperature ratings and high endurance cycles for reliable data storage.
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