SCS152

www.DataSheet4U.com M FEATURES ISO 7816-3:1989 “Answer to Reset” compatible for synchronous cards Industry standard 4406 command set compatible Extended commands: - Combined WRITE and ERASE-WITH-CARRY function - Cryptographic signature of the EEPROM contents and challenge 40-bit user programmable area with lock bit 64-bit cryptographic key 64-bit transport code 33352 token units (788888) Internal protection against token counter value corruption (anti-tearing) SCS152 Token Card Chip DIE LAYOUT GND VDD SCI SDIO SCK BLOCK DIAGRAM ADDRESS GENERATION EEPROM DESCRIPTION The SCS152 is a third generation token card integrated VDD DataSheet4U.com circuit intended for prepaid applications. Typical appliGND cations of the SCS152 include disposable telephone cards, vending machine cards, low value debit cards, access control, and authentication. The SCS152 incorporates several security features, including an internal signature function and a long transport code. The SCS152 has two modes – issuer mode and user mode. During wafer testing, it is placed in issuer mode for card manufacturing and transportation to the issuer. In issuer mode, the transport code is needed to program the device and, thus, is protected from unauthorized use before personalization by the issuer. During personalization, a cryptographic key, unique to the card, is programmed into EEPROM. This key can not be read. The system using the card must be able to determine what key was programmed from ex...