Model: AT24C256 It adopts a 2-pin I2C interface, which is compatible with a variety of microcontrollers, with simple connection, stable communication, and convenient and fast. Supports 2.7 - 5.5V operating voltage, 5mA current, low power consumption, and extends the service life of the device. Equipped with high-performance AT24C256 EEPROM chip, it provides 256KB (32KB bytes) storage capacity to meet various data storage needs. The pins are brought out and clearly marked for easy connection and use, making it easy to integrate into various projects.