Description
●The AT88SC0204C member of the CryptoMemory family is a high-performance secure memory providing 2 Kbits of user memory with advanced security and cryptographic features built in. The user memory is divided into four 64-byte zones, each of which may be individually set with different security access rights or combined together to provide space for 1 to 4 data files.
●Features
●• One of a Family of Devices with User Memories from 1 Kbit to 1 Mbit
●• 2-Kbit (256 Bytes) EEPROM User Memory
●– Four 64-byte (512-bit) Zones
●– Self-timed Write Cycle (5 ms)
●– 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 Patented Dynamic Symetric Mutual Authentication Protocol (Under
●Exclusive Patent License from 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
●• 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
●• Embedded Application Features
●– Low Voltage Operation: 2.7V to 5.5V
●– Secure Nonvolatile Storage for Sensitive System or User Information
●– 2-wire Serial Interface
●– 1.5 MHz Compatibility for Fast Operation
●– Standard 8-lead Plastic Packages
●– Same Pinout as 2-wire Serial EEPROMs
●• High Reliability
●– Endurance: 100,000 Cycles
●– Data Retention: 10 years
●– ESD Protection: 4,000V min
