Non-volatile memory does not require power to retain information. Typically, information is written into memory at the time of IC fabrication, but due to limitations non-volatile memory cannot store large amounts of data. Volatile memory requires power to retain information, it can be accessed randomly and written to by a user, and significantly more data can be stored than in non-volatile memory. ROHM offers a number of EEPROM ICs. These solutions provide efficient means of retaining non-trivial data when power is removed. LAPIS Semiconductor (a ROHM group company) provides a variety of DRAM, P2ROM, and FeRAM memory solutions. These memory devices provide efficient means of retaining data, and are used in numerous applications.