AT88SC0404CRF_Summary| Datasheet

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Features
One of a Family of Devices with User Memory of 1 Kbit to 64 Kbits Contactless 13.56 MHz RF Communications Interface
ISO/IEC 14443-2:2001 Type B Compliant ISO/IEC 14443-3:2001 Type B Compliant Anticollision Protocol Command Set Optimized for Multicard RF Communications Tolerant of Type A Signaling for Multiprotocol Applications Integrated 82 pF Tuning Capacitor User EEPROM Memory 4 Kbits Configured as Four 128-byte (1-Kbit) User Zones Byte, Page, and Partial Page Write Modes Self-timed Write Cycle 256-byte (2-Kbit) Configuration Zone User-programmable Application Family Identifier (AFI) User-defined Anticollision Polling Response User-defined Keys and Passwords High-Security Features 64-bit Mutual Authentication Protocol (under license of ELVA) Encrypted Checksum Stream Encryption Four Key Sets for Authentication and Encryption Four Sets of Two 24-bit Passwords Password and Authentication Attempts Counters Selectable Access Rights by Zone Antitearing Function Tamper Sensors High Reliability Endurance: 100,000 Write Cycles Data Retention: 10 Years Operating Temperature: -40 C to +
85 C

13.56 MHz CryptoRF EEPROM Memory 4 Kbits
AT88SC0404CRF

Summary

Description
The CryptoRF family integrates a 13.56 MHz RF interface into a CryptoMemory , resulting in a contactless smart card with advanced security and cryptographic features. This device is optimized as a contactless secure memory, for RF smart cards, and secure data storage, without the requirement of an internal microprocessor. For communications, the RF interface utilizes the ISO/IEC 14443-2 and -3 Type B bit timing and signal modulation schemes, and the ISO/IEC 14443-3 Slot-MARKER Anticollision Protocol. Data is exchanged half duplex at a 106-kbit/s rate, with a two-byte CRC_B providing error detection capability. The maximum communication range between the reader antenna and contactless card is approximately 10 cm when used with an RFID reader that transmits the maximum ISO/IEC 14443-2 RF power level. The RF interface powers the other circuits; no battery is required. Full compliance with the ISO/IEC 14443-2 and -3 standards results in anticollision interoperability with the AT88RF020 2-Kbit RFID EEPROM produc
t and provides both a proven RF communication interface and a robust anticollision protocol. The AT88SC0404CRF contains 4 Kbits of user memory and 2 Kbits of configuration memory. The 2 Kbits of configuration memory contain four sets of read/write passwords, four crypto key sets, security access registers for each user zone, and password/key registers for each zone. The CryptoRF command set is optimized for a multicard RF communications environment. A programmable AFI register allows this IC to be used in numerous applications in the same geographic area with seamless discrimination of cards assigned to a particular application during the anticollision process.

Rev. 5023CS CRRF 12/06

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