AT24C64SC

• Low-voltage and Standard-voltage Operation 5.0 (VCC = 4.5V to 5.5V) 2.7 (VCC = 2.7V to 5.5V)
• Internally Organized 4096 x 8, 8192 x 8
• 2-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bi-directional Data Transfer Protocol
• 100 kHz (2.7V) and 400 kHz (5V) Compatibility
• 32-byte Page Write Mode (Partial Page Writes Allowed)
• Self-timed Write Cycle (10 ms max)
• High Reliability Endurance: 1 Million Write Cycles Data Retention: 100 Years ESD Protection: >3,000V

The AT24C32SC/64SC provides 32,768/65,536 bits of serial electrically erasable andprogrammable read only memory (EEPROM) organized as 4096/8192 words of 8 bitseach. AT24C64SC are optimized for use in smart card applications where low-powerand low-voltage operation may be essential. The devices are available in severalstandard ISO 7816 smart card modules (see Ordering Information). The entire familyis 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 productsoffered in standard IC packages (PDIP, SOIC, EIAJ, LAP), with the exception of theslave address and Write Protect functions of AT24C64SC which are not required for smart cardapplications.