The Microchip 93LC56/SN is an 8-pin serial EEPROM, which is a type of non-volatile memory (memory that does not lose its data when the power is turned off). It features a 256-bit memory array with 32K-bit addressing range. It has a low power consumption design and operates at supply voltages of 1.8V to 6.0V. It has an data transfer rate of 400kbps and an endurance of 1,000,000 erase/write cycles. The 93LC56/SN has a wide variety of uses, including storing data in low power electronic devices such as calculators, watches, and smartcards.