The AT24C128SC/256SC provides 131,072/262,144 bits of serial electrically erasable
and programmable read only memory (EEPROM) organized as 16,384/32,768 words
of 8 bits each. The devices are optimized for use in smart card applications where lowpower
and low-voltage operation may be essential. The devices are available in
several standard ISO 7816 smart card modules (see Ordering Information). The entire
family is available in both high-voltage (4.5V to 5.5V) and low-voltage (2.7V to 5.5V)
versions. All devices are functionally equivalent to Atmel Serial EEPROM products
offered in standard IC packages (PDIP, SOIC, EIAJ, LAP), with the exception of the
slave address and Write Protect functions which are not required for smart card
applications.