AT88SC0204CA Просмотр технического описания (PDF) - Atmel Corporation

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производитель

AT88SC0204CA

CryptoMemory®

Atmel Corporation 

Smart Card Module

8-lead SOIC, PDIP

VCC=C1

RST=C2

SCL/CLK=C3

NC=C4

C5=GND

NC 1

C6=NC

NC

C7=SDA/IO

2

C8=NC

NC 3

GND 4

8 VCC

7 NC

6 SCL

5 SDA

GND 1

NC 2

SDA 3

NC 4

8-lead TSSOP

8-lead Ultra Thin Mini-MAP (MLP 2x3)

8 VCC

7 NC

8-Lead TSSOP

6 CLK

5 NC

NC 8

SDA 7

NC 6

GND 5

1 NC

2 CLK

3 NC

4 VCC

Bottom View

2. Description

The AT88SC0204CA member of the CryptoMemory® family is a high-performance secure

memory providing 2 Kbit of user memory with advanced security and cryptographic features built

in. The user memory is divided into four 64-byte zones, each of which may be individually set

with different security access rights or effectively combined together to provide space for 1 to 4

data files. The AT88SC0204CA features an enhanced command set that allows direct communi-

cation with microcontroller hardware 2-Wire interface thereby allowing for faster firmware

development with reduced code space requirements.

3. Smart Card Applications

The AT88SC0204CA provides high security, low cost, and ease of implementation without the

need for a microprocessor operating system. The embedded cryptographic engine provides for

dynamic, symmetric-mutual authentication between the device and host, as well as performing

stream encryption for all data and passwords exchanged between the device and host. Up to

four unique key sets may be used for these operations. The AT88SC0204CA offers the ability to

communicate with virtually any smart card reader using the asynchronous T = 0 protocol (Gem-

plus Patent) defined in ISO 7816-3.

4. Embedded Applications

Through dynamic, symmetric-mutual authentication, data encryption, and the use of crypto-

graphic Message Authentication Codes (MAC), the AT88SC0204CA provides a secure place for

storage of sensitive information within a system. With its tamper detection circuits, this informa-

tion remains safe even under attack. A 2-wire serial interface running at speeds up to 1.0 MHz

provides fast and efficient communications with up to 15 individually addressable devices. The

AT88SC0204CA is available in industry standard 8-lead packages with the same familiar pin

configuration as AT24CXXX serial EEPROM devices.

Note: Does not apply to TSSOP Pinout.

2 AT88SC0204CA

5202CS–CRYPT–5/09

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