The Atmel AT88SC0104CA member of the Atmel CryptoMemory®family is a high-performance secure memory providing 1-Kbit of user memory with advanced security and cryptographic features built in. The user memory is divided into four 32-byte zones, each of which may be individually set with different security access rights or effectively combined together to provide space for one to four data files.
One of a family of devices with user memories from 1-Kbit to 8-Kbit 1-Kbit (128-byte) EEPROM user memory Four 256-bit (32-byte) zones Self-timed write cycle Single byte or 16-byte page write mode Programmable access rights for each zone 2-Kbit configuration zone 37-byte OTP Area for User-defined Codes 160-byte Area for User-defined Keys and Passwords High security features 64-bit mutual authentication protocol (under license of ELVA) Cryptographic Message Authentication Codes (MAC) Stream encryption Four key sets for authentication and encryption Eight sets of two 24-bit passwords