The ST93C06 and ST93C06C are 256 bit Electrically Erasable Programmable Memory (EEPROM) fabricated with SGS-THOMSON's High Endurance Single Polysilicon CMOS technology. In the text the two products are referred to as ST93C06. The memory is divided into either 32 x 8 bit bytes or 16 x 16 bit words. The organization may be selected by a signal applied on the ORG input. The memory is accessed through a serial input (D) and by a set of instructions which includes Read a byte/word, Write a byte/word, Erase a byte/word, Erase All and Write All. ARead instruction loads the address of the first byte/word to be read into an internal address pointer.