24LC256-I/SN: High-Performance 256Kb EEPROM IC by Microchip Technology | Features & Applications 2025-04-21 Explore the 24LC256-I/SN, a 256Kbit I2C EEPROM IC by Microchip Technology. Features 32K x 8 memory, 400kHz speed, 2.5V-5.5V range, and industrial-grade reliability for embedded systems.