The 93LC56A/P is an 8-pin Serial EEPROM made by Microchip that has 512 bits of EEPROM memory. It is organized as 64x8 bits and is cascadable up to 64 devices. The 93LC56A/P is accessed serially through the SDA pin and SCL pin, and uses a clock (SCL) signal to control access to the memory. The datasheet for the 93LC56A/P states that the device is capable of operation over a wide range of temperatures from -40 to +85 °C. It offers four clock rates from 200Khz to 10Mhz and is designed to work with I2C interface controllers. The 93LC56A/P also features an industrial temperature range for operation in more extreme environments. The device is able to hold data without power and it uses a low voltage design for power, making it suitable for most portable applications.