The 93AA46CX-I/SN is a 1K-bit serial EEPROM from Microchip. It has an 8-pin SOIC package and is organized as 128 x 8. It is the world's smallest serial EEPROM with the industry-standard Two-Wire Bus interface. It is suitable for low power applications, runs at low voltage levels (2.5V to 5.5V) and supports faster Bus speeds up to 400kHz. Its' advanced architecture ensures low power usage and high reliability.