Microcontroller Smartcard with 2 x Serial I²C EEPROMs Manufacturer ATMEL with part number references: AT90S8515 and two AT24C1024 Blank Smartcard without any software to create a prototype I²C standard 2-wires serial interface programming only Read / Write mode: see the datasheets from ATMEL for details Power supply: 4.5V to 5.5V Flash memory: 4096 words of 16-bits SRAM internal: 512 Bytes of 8-bits EEPROM internal: 512 Bytes of 8-bits EEPROM external1: 131072 Bytes of 8-bits EEPROM external2: 131072 Bytes of 8-bits Maximum frequency: 8MHz Erase / Write cycles: 1,000,000 times minimum Data retention: 10 years minimum Temperature: 0°C to +70°C Dimensions: 85 x 53 x 1 mm Weight: 10g