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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