M24C02-A125

The M24C02-A125 is a 2K-bit serial EEPROM manufactured by STMicroelectronics, designed for reliable data storage in low-power applications. It features a 2-wire Serial Peripheral Interface (I²C) compatible bus, enabling simple integration into microcontroller-based systems. The device supports clock frequencies up to 400 kHz, ensuring fast and efficient communication with host processors. This memory offers 256 bytes of user-accessible memory organized as 32 pages of 8 bytes each, allowing for flexible data management. It includes hardware write protection via a dedicated WP pin, which prevents accidental overwrites or erasures, enhancing data integrity in critical applications. The M24C02-A125 also provides end-to-end data retention for up to 200 years at 25°C, making it suitable for long-term storage needs. The device operates from a supply voltage range of 1.7 V to 5.5 V, making it adaptable to various power environments, including battery-powered systems. Its low-power consumption—typically 1.5 mA during active operations and less than 1 μA in standby mode—makes it ideal for portable and energy-sensitive electronics. Additionally, the chip supports both byte-write and page-write operations, optimizing performance based on application requirements. Manufactured using advanced CMOS technology, the M24C02-A125 delivers high reliability, with a typical endurance of 1 million write cycles and robust ESD protection. It is available in a compact 8-pin SO8 package, facilitating easy PCB layout and space-efficient design. The operating temperature range spans from -40°C to +85°C, supporting operation in industrial and consumer environments. Common applications include consumer electronics, automotive systems, industrial control units, smart meters, and medical devices where non-volatile memory is essential for configuration data, calibration values, or user settings. Its compatibility with standard I²C protocols ensures seamless integration with a wide range of microcontrollers and embedded processors without requiring complex interface logic.