2

5006DS–CRRF–04/09

AT88SC6416CRF

The AT88SC6416CRF contains 64 Kbits of user memory and 2 Kbits of configuration memory. The 2 Kbits of configuration

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 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.

3. Block Diagram

Figure 3-1.

Block Diagram

RF Interface

AC1

C

AC2

Over

Voltage

Clamp

VSS

V

DD

Regulator

Clock

Extraction

Data

Extraction

Command

and

Response

EEPROM

Data Transfer

Password

Verification

Frame Formatting

and

Error Detection

Interface

Anticollision

Random Number

Generator

Authentication

Encryption and

Certification Unit