M24C04-A125

The M24C04-A125 is a 4-kilobit serial electrically erasable programmable read-only memory (EEPROM) manufactured by STMicroelectronics. It features a 2-wire interface compliant with the I²C protocol, enabling efficient and reliable data storage in low-power applications. The device offers 512 bytes of user memory organized into 64 pages of 8 bytes each, allowing for flexible and structured data handling. Its memory architecture supports byte-level write operations, ensuring precise control over stored information without requiring full page programming. This EEPROM operates across a wide supply voltage range of 1.7 V to 5.5 V, making it compatible with both low-voltage and standard logic systems. It supports fast communication speeds up to 400 kHz in standard mode and 1 MHz in fast mode, facilitating rapid data transfer while maintaining compatibility with existing system designs. The M24C04-A125 includes built-in write protection mechanisms, such as hardware write-protect pins and software-based lock bits, which enhance data security and prevent unintended modifications during operation. Designed for long-term reliability, the device guarantees up to 1 million erase/write cycles and retains data for up to 200 years at 25°C, ensuring robust performance in demanding environments. It also features an automatic self-timed write cycle, eliminating the need for external timing control and simplifying system integration. The package is available in a compact 8-pin SO (Small Outline) configuration, ideal for space-constrained applications. Common applications include consumer electronics, industrial control systems, automotive modules, and portable devices where non-volatile memory is required for storing calibration data, configuration settings, or user preferences. Its low power consumption and high endurance make it particularly suitable for battery-powered systems, such as smart meters, sensors, and IoT nodes. Additionally, the M24C04-A125 is RoHS-compliant and meets JEDEC standards, ensuring environmental safety and interoperability across global markets.