Description

The AT88SC0104CA member of the 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 1 to 4 data files. The AT88SC0104CA features an enhanced command set that allows direct communication with microcontroller hardware 2-Wire interface thereby allowing for faster firmware development with reduced code space requirements.

Features

• One of a Family of Devices with User Memories from 1-Kbit to 8-Kbits

• 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

⎯ Anti-Tearing Function

⎯ Voltage and Frequency Monitors

• Smart Card Features

⎯ ISO 7816 Class B (3V) Operation

⎯ ISO 7816-3 Asynchronous T=0 Protocol (Gemplus® Patent) *

⎯ Multiple Zones, Key Sets and Passwords for Multi-application Use

⎯ Synchronous 2-wire Serial Interface for Faster Device Initialization *

⎯ Programmable 8-byte Answer-To-Reset Register

⎯ ISO 7816-2 Compliant Modules

• Embedded Application Features

⎯ Low Voltage Supply: 2.7V – 3.6V

⎯ Secure Nonvolatile Storage for Sensitive System or User Information

⎯ 2-wire Serial Interface (TWI, 5V Compatible)

⎯ 1.0 MHz Compatibility for Fast Operation

⎯ Standard 8-lead Plastic Packages, Green compliant (exceeds RoHS)

⎯ Same Pin Configuration as AT24CXXX Serial EEPROM in SOIC and PDIP Packages

• High Reliability

⎯ Endurance: 100,000 Cycles

⎯ Data Retention: 10 years

⎯ ESD Protection: 2,000V min