The 93LC66CT-IMC is an 8-pin, low-voltage serial EEPROM from Microchip. It has 2Kbits of memory space, a 2-wire Serial Peripheral Interface (SPI) and a 1-Wire Serial Interface (1-Wire). It also has a 5-time write protection feature, which provides a secure way to store data from unauthorized write access. The memory is organized as 256 words of 8 bits each. It operates on a voltage range of 1.8 to 5.5V, and the operating temperature range is -40°C to +85°C. The 93LC66CT-IMC is ideal for industrial applications and other applications with limited space, yet high capacity data storage.