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CAT24C64

CAT24C64

ON Semiconductor
ON Semiconductors 64-Kbit I2C EEPROM family
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Overview

The CAT24C64 is a 64-Kbit I2C serial EEPROM from ON Semiconductor. It offers non-volatile storage with a standard two-wire I2C interface, making it suitable for a wide range of embedded applications requiring configuration data or data logging. Its low power consumption and robust data retention features ensure reliable operation.

Why Choose This Part

This EEPROM offers a wide supply voltage range of 1.7V to 5.5V, enhancing compatibility with various microcontrollers. Key features include a 32-byte page write buffer, hardware write protection for data integrity, and noise suppression filters on I2C bus inputs for reliable communication. With 1,000,000 program/erase cycles and 100-year data retention, it provides long-term reliability for stored data.

Applications

Parameter Storage
Storing calibration data, user settings, or device configurations that need to persist across power cycles in embedded systems.
Data Logging
Recording sensor readings, event logs, or other small data sets in applications where non-volatility is critical.
System Boot Configuration
Providing initial boot parameters or unique device identifiers for microcontrollers.
Appliance Control
Saving program settings or operating modes in domestic appliances and industrial control panels.
Medical Devices
Storing patient settings or device history in portable medical equipment, leveraging low power consumption.

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-TSSOP (0.173", 4.40mm 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-TSSOP
Write Cycle Time - Word, Page 5ms

Getting Started

To get started with the CAT24C64, connect it to any microcontroller supporting I2C communication. Most microcontroller development kits and IDEs provide I2C peripheral libraries that simplify reading from and writing to serial EEPROMs. Refer to the CAT24C64 datasheet for detailed I2C protocol timing and address information. No specific development boards are required beyond a standard microcontroller development environment.

Also Consider

M24C64 STMicroelectronics - Another widely used 64Kbit I2C compatible serial EEPROM from STMicroelectronics, often found in a variety of industrial and consumer applications.
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