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Description

The AT88SC0404C member of the CryptoMemory family is a high-performance secure memory providing 4 Kbits of user memory with advanced security and cryptographic features built in. The user memory is divided into four 128-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

? 4-Kbit (512-byte) EEPROM User Memory

– Four 128-byte (1-Kbit) 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