Microchip AT88SC0104CA-SH 8-Pin Crypto Authentication IC SOIC

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