32321 Parallax Inc, 32321 Datasheet

32321

Manufacturer Part Number

32321

Description

IS23SC4442 SMART CARD

Manufacturer

Parallax Inc

Series

-r

Datasheet

1.32321.pdf (3 pages)

Specifications of 32321

Accessory Type

Smart Card

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

For Use With/related Products

32320

For Use With

32320 - SMART CARD READER

Current page: 1 of 3
Download datasheet (54Kb)

IS23SC4442 Smart Card (#32321)

The IS23SC4442 Smart Card provides 256 bytes of serial EEPROM accessible by Parallax’s Smart Card

Reader (#32320). This smart card also provides a 3-bit error counter and 3-byte programmable security

code to prevent unauthorized write/erase operations to the card.

Smart cards are used in a variety of applications ranging from telecommunications to personal finance.

The IS23SC4442 Smart Card is 256 x 8 bits of EEPROM main memory embedded in a plastic card, the

size of a standard credit card. The pins of the IS23SC4442 are accessible through the gold plated contact

pads embedded in the card, and when paired with the Smart Card Reader (#32320) can be connected to

the I/O pins of a microcontroller.

Features

Key Specifications

Application Ideas

Caution!

The IS23SC4442 smart card does have a programmable security code (PSC) to prevent unauthorized

erase/write operations to the card. By default, this code is set to $FFFFFF. A 3-bit error counter (EC) is

used to track the number of unsuccessful verifications of the PSC. After three unsuccessful attempts, the

EC will lock the chip from further access, and data can only be read and never written or erased from the

card again. Please refer to the manufacturer’s datasheet for the complete communication protocol.

Memory Organization: 256 x 8-bit

2.5 ms write time

3-byte Programmable Security Code for memory

write/erase protection

1,000,000 erase/write cycles guaranteed with 10 year

data retention

Compatible with BASIC Stamp & Propeller

microcontrollers

Power Requirements: 2.7–5 VDC; 3 mA typical active

current

Communication: I

Operating temperature: -22 to +167 °F (-30 to +75 °C)

Dimensions: 2.5 x 3 in (6.35 x 7.62 cm)

Security systems

Data storage

Tracking systems

Identity authentication

C (CMOS)

IS23SC4442 Smart Card (#32321)

Web Site: www.parallax.com

Forums: forums.parallax.com

Sales: sales@parallax.com

Technical: support@parallax.com

v1.0 6/18/2010 Page 1 of 3

Office: (916) 624-8333

Fax: (916) 624-8003

Sales: (888) 512-1024

Tech Support: (888) 997-8267

Related parts for 32321

32321 Summary of contents

Page 1

... Please refer to the manufacturer’s datasheet for the complete communication protocol. Copyright © Parallax Inc. Web Site: www.parallax.com Forums: forums.parallax.com Sales: sales@parallax.com Technical: support@parallax.com IS23SC4442 Smart Card (#32321) Office: (916) 624-8333 Fax: (916) 624-8003 Sales: (888) 512-1024 Tech Support: (888) 997-8267 v1.0 6/18/2010 Page ...

Page 2

... IS23SC4442 product page. When inserting the smart card into the reader, be sure the gold contact pads are facing down. Copyright © Parallax Inc. Function Supply Voltage Reset Clock Input No Connect Ground No Connect Bidirectional Data I/O No Connect IS23SC442 Smart Card (#32321) The diagram below v1.0 6/18/2010 Page ...

Page 3

... Resources and Downloads Check for the latest version of this document, manufacturer’s datasheet, and example programs from the IS23SC4442 Smart Card product page www.parallax.com and search 32321. ® BASIC Stamp Example Code Example code for the BASIC Stamp 2 can be found on the IS23SC4442 product page. ...

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