FM93C56 2048-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) is a 2048-bit CMOS non-volatile EEPROM organized as 128 x 16-bit array. This device features MICROWIRE interface which is a 4-wire serial bus with chipselect (CS), clock (SK), data input (DI) and data output (DO) signals. This interface is compat- ible to many of standard Microcontrollers and Microprocessors. There are 7 instructions implemented on the FM93C56 for various Read, Write, Erase, and Write Enable/Disable operations. This device is fabricated using Fairchild Semiconductor floating-gate CMOS process for high reliability, high endurance and low power consumption. “LZ” and “L” versions of FM93C56 offer very low standby current making them suitable for low power applications. This device is offered in both SO and TSSOP packages for small space consid- erations.