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AT88RF04C Datasheet(PDF) 2 Page - ATMEL Corporation |
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AT88RF04C Datasheet(HTML) 2 Page - ATMEL Corporation |
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2 / 158 page  2 AT88SC0808/1616/3216/6416CRF, AT88RF04C 5276C–RFID–3/09 Description The CryptoRF ® family integrates a 13.56 MHz RF interface with CryptoMemory® security features. This product line is ideal for RF tags and contactless smart cards that can benefit from advanced security and cryptographic features. The device is optimized as a contactless secure memory for 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 106k bit per second rate, with a two byte CRC_B providing error detection capability. The RF interface powers the other circuits, no battery is required. Full compliance with the ISO/IEC 14443 –2 and –3 standards provides both a proven RF communication interface, and a robust anticollision protocol. The five products in the CryptoRF family contain 4 Kbits to 64 Kbits of User Memory plus 2 Kbits of Configuration Memory. The 2 Kbits of Configuration Memory contains read/write password sets, 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 multi-card 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. Figure 1. Block Diagram EEPROM Command and Response Data Transfer Authentication Encryption and Certification Unit Frame Formatting and Error Detection Interface Password Verification Anticollision Random Number Generator RF Interface AC1 AC2 Over Voltage Clamp Regulator VDD VSS Clock Extraction Data Extraction C |
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