Features

• One of a family of devices with user memories from 1Kbit to 8Kbits

• 8Kbit (1Kbyte) EEPROM user memory

• Eight 1Kbit (128-byte) zones

• Self-timed write cycle

• Single byte or 16-byte page write mode

• Programmable access rights for each zone

• 2Kbit configuration zone

• 37-byte OTP (One-Time Programmable) 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 two-wire serial interface for faster device initialization *

• Programmable 8-byte answer-to-reset register (ATR)

• ISO 7816-2 compliant modules

• Embedded application features

• Low voltage supply: 2.7V – 3.6V

• Secure nonvolatile storage for sensitive system or user information

• Two-wire serial interface (TWI, 5V compatible)

• 1.0MHz compatibility for fast operation

• Standard 8-lead plastic packages, green compliant (exceeds RoHS)

• Same pin configuration as Atmel® AT24CXXX Serial EEPROM in SOIC and PDIP packages

• High reliability

• Endurance: 100,000 cycles

• Data retention: 10 years

• ESD protection: 2,000V min