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Atmel AT88RF020 Leaflet

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Atmel’s AT88RF020 low-cost 2-Kbit RF Transponder EEPROM Smart Card IC is fully
compliant with the Type B requirements of ISO/IEC 14443. This chip is powered by the
RF interface, so a battery is not needed. A tuning capacitor is included on-chip so only
a single external coil antenna is required to operate the device. The AT88RF020 is
compatible with any Type B RF Smart Card Reader.
Security
AT88RF020 has several security features. A 64-bit password protects the 224-byte user memory
which cannot be read or written unless the correct password has been presented. Write Lock bits
protect critical data from being over-written. Each Lock bit protects an 8-byte page, so once the
Lock bit is set the data can never be changed. The AT88RF020 features a one-way transaction
counter that allows tracking of individual device usage. The counter is set at the factory to zero
and is incremented by a COUNT command that simultaneously writes the Signature field. The
counter can never be reset or decremented. Atmel uniquely serializes each device with a 32-bit
read-only serial number. 
Memory Map
AT88RF020 contains 256 bytes of memory configured as shown below. The first three pages can
always be read by the system. Page 3 is the password and can never be read. Pages 4 thru 31
are the user memory area that can only be accessed after password validation.
Product Features
• 
Contactless 13.56 Mhz RF Communications
Interface
– 
ISO/IEC 14443-2:2001 Type B Compliant
– 
ISO/IEC 14443-3:2001 Type B Compliant
Anticollision Protocol
– 
Command Set Optimized for Multicard RF
Communications
– 
Tolerant of Type A Signaling for
Multiprotocol Applications
– 
Operating Distance of 10 cm or more
• 
Integrated Tuning Capacitor
• 
256 Byte EEPROM Memory
• 
8-Byte Page Write Mode
• 
224-Bytes User Memory
• 
5 mS Write Time
• 
Security Features
– 
Unique Read-only PUPI Serial Number
– 
64-bit Password
– 
One-way Transaction Counter
– 
Write Lock Data Protection
• 
High Reliability
– 
Endurance: 100,000 Write Cycles
– 
Data Retention: 10 Years
– 
Operating Temperature: 0°C to 70°C
Package Options
© Atmel Corporation 2003. All rights reserved.
Atmel® and combinations thereof are registered
trademarks of Atmel Corporation or its subsidiaries.
Other terms and product names may be the
trademarks of others.
REV: 2038B-08/03/7K
B
YTE
0
B
YTE
1
B
YTE
2
B
YTE
3
B
YTE
4
B
YTE
5
B
YTE
6
B
YTE
7
Page 0
[
Unique Tag ID
]
[
Lock Bits
]
Page 1
[
Application Data
]
[
Reserved
]
Page 2
[
Signature
]
[
Counter
]
Page 3
[
Password
]
Page 4
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Page 31
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R
E A D
/ W
R I T E
R F   S
M A R T
C
A R D
I C
S
E C U R E
R F
Atmel Corporation
2325 Orchard Parkway
San Jose, CA 95131
TEL 1(408) 441-0311
FAX 1(408) 487-2600
Regional Headquarters
Europe
Atmel Sarl
Route des Arsenaux 41
Case Postale 80
CH-1705 Fribourg
Switzerland
TEL (41) 26-426-5555
FAX (41) 26-426-5500
Asia
Room 1219 
Chinachem Golden Plaza
77 Mody Road Tsimshatsui
East Kowloon
Hong Kong
TEL (852) 2721-9778
FAX (852) 2722-1369
Japan
9F, Tonetsu Shinkawa Bldg.
1-24-8 Shinkawa
Chuo-ku, Tokyo 104-0033
Japan
TEL (81) 3-3523-3551
FAX (81) 3-3523-7581
Product Contact
1150 East Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
USA
TEL 1(719) 576-3300
FAX 1(719) 540-1759
Literature Requests
www.atmel.com/literature
Web Site
www.atmel.com
Wafer Form, Thinned to 6 Mils
RF Smart Card Modules
Prelaminate Sheets
Development Tools
AT88RF020-DK Development Kit, including RF reader and software
Atmel Contact:  securerf@atmel.com