AT88SC0104C_03 Ver la hoja de datos (PDF) - Atmel Corporation
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AT88SC0104C_03 Datasheet PDF : 9 Pages
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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 multiapplication RF smart
card markets, and secure identification for electronic data transfer, without the
requirement of an internal microprocessor.
For communications, the RF interface utilizes the ISO 14443-2 and -3 Type B bit timing
and signal modulation schemes, and the ISO 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 14443-2 RF power level. The RF interface
powers the other circuits; no battery is required. Full compliance with the ISO 14443-2
and -3 standards results in anticollision interoperability with the AT88RF020 2-Kbit RFID
EEPROM product and provides both a proven RF communication interface and a robust
anticollision protocol.
The AT88SC0104CRF contains 1 Kbits of user memory and 2 Kbits of system memory.
The 2 Kbits of system zone memory contain eight sets of read/write passwords, four
crypto key sets, security access registers for each user zone, and password/key
registers for each zone. The features and functionality of the system zone are identical
to those in the standard CryptoMemory.
The CryptoRF command set is optimized for a multicard RF communications
environment and includes all of the functionality of the standard CryptoMemory
commands. 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.
2 AT88SC0104CRF
5021AS–CRRF–05/03
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