AT88SC3216CRF-MY1 Просмотр технического описания (PDF) - Atmel Corporation

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AT88SC3216CRF-MY1

CryptoRF® Specification

Atmel Corporation 

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

RF Interface

AC1

Command

and

Response

EEPROM

Over

C

Voltage

Clamp

VSS

AC2

Regulator

VDD

Clock

Extraction

Data

Extraction

Frame

Formatting

and

Error

Detection

Interface

Password

Verification

Anticollision

Random Number

Generator

Data Transfer

Authentication

Encryption

and

Certification

Unit

2 AT88SC0808/1616/3216/6416CRF, AT88RF04C

5276C–RFID–3/09

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