CryptoMemory Specification For Standard Mode of Operation

Description
The AT88SCxxxxC is a family of 9 high-performance secure memory devices providing 1K to 256K bits of user memory with advanced built-in security and cryptographic features. The memory is divided into 4, 8 or 16 user zones each of which may be individually set with different security access rights or used together to provide space for one or multiple data files. Cryptomemory has a configuration memory that contains registers to define the security rights for each user zone and space for passwords and secret keys used by the security logic of CryptoMemory.

FEATUREs
• A Family of 9 Devices with User Memories from 1-Kbit to 256-Kbit
• EEPROM User Memory
    – Four, Eight or Sixteen Zones
    – Self-timed Write Cycles
    – Single-Byte or Multiple-Byte Page-Write Modes
    – Programmable Access Rights for Each Zone
• 2-Kbit Configuration Memory
    – 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)
    – Encrypted Checksum
    – Stream Encryption
    – Four Key Sets for Authentication and Encryption
    – Eight Sets of Two 24-bit Passwords
    – Anti-tearing Function
    – Voltage and Frequency Monitor
• Embedded Application Features
    – Low Voltage Operation: 2.7V to 5.5V
    – Secure Nonvolatile Storage for Sensitive System or User Information
    – 2-wire Serial Interface
    – 1.0 MHz Compatibility for Fast Operation
    – Standard 8-lead Plastic Packages
    – Same Pinout as 2-wire Serial EEPROMs
• Smart Card Features
    – ISO 7816 Class A (5V) or 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
• High Reliability
    – Endurance: 100,000 Cycles
    – Data Retention: 10 years
    – ESD Protection: 4,000V