AT88SC0404CA-PU

EEPROM Serial-2Wire 4Kbit 1K x 4 3.3V/5V 8Pin PDIP

**Description**

The AT88SC0404CA member of the CryptoMemory® family is a high-performance secure memory providing 4 Kbit 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 effectively combined together to provide space for 1 to 4 data files. The AT88SC0404CA 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**

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

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*4-Kbit 512-byte EEPROM User Memory**

**– Four 1-Kbit 1-Kbit128-byte Zones**

**– Self-timed Write Cycle**

**– Single Byte or 16-byte Page Write Mode**

**– Programmable Access Rights for Each Zone**

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*2-Kbit Configuration Zone**

**– 37-byte OTP Area for User-defined Codes**

**– 160-byte Area for User-defined Keys and Passwords**

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*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**

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*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**

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*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**

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*High Reliability**

**– Endurance: 100,000 Cycles**

**– Data Retention: 10 years**

**– ESD Protection: 2,000V min**