1. General description
NXP Semiconductors has developed MIFARE MF0ICU2 - MIFARE Ultralight C - to be
used with Proximity Coupling Devices (PCD) according to ISO/IEC 14443A (see Ref. 1
ISO/IEC). The communication layer (MIFARE RF Interface) complies to parts 2 and 3 of
the ISO/IEC 14443A standard. The MF0ICU2 is primarily designed for limited use
applications such as public transportation, event ticketing and NFC Forum Tag Type 2
applications.
1.1 Contactless energy and data transfer
In the MIFARE system, the MF0ICU2 is connected to a coil with a few turns. The
MF0ICU2 fits for the TFC.0 (Edmonson) and TFC.1 ticket formats as defined in EN 753-2.
TFC.1 ticket formats are supported by the MF0xxU20 chip featuring an on-chip resonance
capacitor of 16.9 pF.
The smaller TFC.0 tickets are supported by the MFxxU21 chip holding an on-chip
resonance capacitor of 50 pF.
When the ticket is positioned in the proximity of the coupling device (PCD) antenna, the
high speed RF communication interface allows the transmission of the data with a baud
rate of 106 kbit/s.
1.2 Anticollision
An intelligent anticollision function according to ISO/IEC 14443 allows to operate more
than one card in the field simultaneously. The anticollision algorithm selects each card
individually and ensures that the execution of a transaction with a selected card is
performed correctly without data corruption resulting from other cards in the field.
MF0ICU2
MIFARE Ultralight C
Rev. 3.2 — 19 May 2009
171432
Product short data sheet
PUBLIC
Fig 1. MIFARE card reader
001aah998
coil:
20 mm
coil: 56 mm
TFC.0
energy
directly mounted IC
data
MIFARE CARD
PCD
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 2 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
1.2.1 Cascaded UID
The anticollision function is based on an IC individual serial number called Unique
IDentification. The UID of the MF0ICU2 is 7 bytes long and supports cascade level 2
according to ISO/IEC 14443-3.
1.3 Security
3DES Authentication
Anti-cloning support by unique 7-byte serial number for each device
32-bit user programmable OTP area
Field programmable read-only locking function per page for first 512-bit
Read-only locking per block for rest of memory
2. Features
2.1 MIFARE‚ RF interface (ISO/IEC 14443 A)
Contactless transmission of data and supply energy (no battery needed)
Operating distance: up to 100 mm (depending on field strength and antenna geometry)
Operating frequency: 13.56 MHz
Fast data transfer: 106 kbit/s
High data integrity: 16-bit CRC, parity, bit coding, bit counting
True anticollision
7-byte serial number (cascade level 2 according to ISO/IEC 14443-3)
Typical ticketing transaction: < 35 ms
Fast counter transaction: < 10 ms
2.2 EEPROM
1536-bit total memory
1184-bit user memory
36 pages user r/w area
512-bit compatible to MF0ICU1
Field programmable read-only locking function per page for first 512-bit
Field programmable read-only locking function per block
32-bit user definable One-Time Programmable (OTP) area
16-bit counter
Data retention of 5 years
Write endurance 10 000 cycles
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 3 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
3. Applications
Public transport
Event ticketing
Prepaid applications
Loyalty schemes
NFC Forum Tag Type 2
Toy and amusement
4. Quick reference data
[1] Stresses above one or more of the limiting values may cause permanent damage to the device.
[2] These are stress ratings only. Operation of the device at these or any other conditions above those given in the Characteristics section
of the specification is not implied.
[3] Exposure to limiting values for extended periods may affect device reliability.
[4] LCR meter HP 4285, Tamb = 22 °C, Cp-D, fi = 13.56 MHz, 2 Veff.
5. Ordering information
[1] 17 pF version.
[2] 50 pF version.
Table 1. Quick reference data[1][2][3]
Symbol Parameter Conditions Min Typ Max Unit
fiinput frequency -13.56 -MHz
Ciinput capacitance 17 pF version (bare silicon and
MOA4)
[4] 14.08 16 17.92 pF
50 pF version [4] 44 50 56 pF
EEPROM characteristics
tcy(W) write cycle time -4.1 -ms
tret retention time Tamb = 22 °C 5 - - year
Nendu(W) write endurance Tamb = 22 °C10000 - - cycle
Table 2. Ordering information
Type number Package
Name Description Version
MF0ICU2001DUD -8 inch wafer (sawn, laser diced; 120 μm thickness, on film frame carrier;
electronic fail die marking according to SECSII format)[1]
-
MF0ICU2101DUD - 8 inch wafer (sawn, laser diced; 120 μm thickness, on film frame carrier;
electronic fail die marking according to SECSII format)[2]
-
MF0MOU2001DA4 PLLMC plastic leadless module carrier package; 35 mm wide tape[1] SOT500-2
MF0MOU2101DA4 PLLMC plastic leadless module carrier package; 35 mm wide tape[2] SOT500-2
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 4 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
6. Block diagram
7. Functional description
7.1 Block description
The MF0ICU2 chip consists of the 1536-bit EEPROM, the RF-Interface and the Digital
Control Unit. Energy and data are transferred via an antenna, which consists of a coil with
a few turns directly connected to the MF0ICU2. No further external components are
necessary. (For details on antenna design please refer to the document Ref. 6 “MIFARE
(Card) Coil Design Guide.)
RF-Interface:
Modulator/Demodulator
Rectifier
Clock Regenerator
Power On Reset
Voltage Regulator
Crypto coprocessor: Triple Data Encryption Standard (3DES) coprocessor
Crypto control unit: controls Crypto coprocessor operations
Command Interpreter: Handles the commands supported by the MF0ICU2 in order to
access the memory
EEPROM-Interface
EEPROM: The 1536 bits are organized in 48 pages with 32 bits each. 80 bits are
reserved for manufacturer data. 32 bits are used for the read-only locking mechanism.
32 bits are available as an OTP area. 1152 bits are user programmable read/write
memory.
Fig 2. Block diagram
001aah999
antenna RF-INTERFACE
DIGITAL CONTROL UNIT
EEPROM
CRYPTO
CO PROCESSOR
CRYPTO
CONTROL UNIT
COMMAND
INTERPRETER
EEPROM
INTERFACE
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 5 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
7.2 State diagram and logical states description
The commands are initiated by the PCD and controlled by the Command Interpreter of the
MF0ICU2. It handles the internal states (as shown in Figure 3 “State diagram) and
generates the appropriate response.
For a correct implementation of an anticollision procedure please refer to the documents
in Section 10 “References.
Remark: Not shown in this diagram: In each state the command interpreter returns to the Idle state
if an unexpected command is received. If the IC has already been in the Halt state before it returns
to the Halt state in such a case.
Fig 3. State diagram
001aai000
AUTHENTICATED
ACTIVE
READY 1
HALTIDLE
POR
SELECT
of cascade level 1
READ
from address 0
READ
from address 0
WRITE
of 4 byte
WRITE
of 4 byte
READ
of 16 byte
READ
of 16 byte
ANTICOLLISION
ANTICOLLISION
AUTHENTICATE
REQA
WUPA WUPA
HALT
HALT
SELECT
of cascade level 2
READY 2
identification
and
selection
procedure
memory
operations
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 6 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
7.3 Memory organization
The 1536-bit EEPROM memory is organized in 48 pages with 32 bits each. In the erased
state the EEPROM cells are read as a logical “0”, in the written state as a logical “1”.
7.3.1 UID/serial number
The unique 7 byte serial number (UID) and its two Block Check Character Bytes (BCC)
are programmed into the first 9 bytes of the memory. It therefore covers page 00h, page
01h and the first byte of page 02h. Due to security and system requirements these bytes
are write-protected after having been programmed by the IC manufacturer after
production.
According to ISO/IEC14443-3 BCC0 is defined as CT SN0 SN1 SN2.
Abbreviations CT stays for Cascade Tag byte (88h) and BCC1 is defined as SN3 SN4
SN5 SN6.
SN0 holds the Manufacturer ID for NXP (04h) according to ISO/IEC14443-3 and
ISO/IEC 7816-6 AMD.1.
Table 3. Memory organization
Page address Byte number
Decimal Hex 0 1 2 3
000h serial number
101h serial number
202h serial number internal lock bytes lock bytes
303h OTP OTP OTP OTP
4 to 39 04h to 27h user memory user memory user memory user memory
40 28h lock bytes lock bytes - -
41 29h 16-bit counter 16-bit counter - -
42 2Ah authentication configuration
43 2Bh authentication configuration
44 to 47 2Ch to 2Fh authentication key
Fig 4. UID/serial number
001aai001
MSBit LSBit
page 0
byte
check byte 0
serial number
part 1
serial number
part 2
manufacturer ID for NXP (04h)00000100
0123
page 1
0123
page 2
0123
internal
check byte 1
lock bytes
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 7 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
7.3.2 Lock bytes
Lock bytes enable the user to lock parts of the complete memory area for writing. A Read
from user memory area cannot be restricted via lock bytes functionality. For this, please
refer to the authentication functionality, (see Section 7.3.4 “3DES Authentication).
7.3.3 OTP bytes
OPT bytes are pre-set to all “0” after production. These bytes may be bit-wise modified by
a WRITE command.
7.3.4 3DES Authentication
3DES Authentication proves that two entities have the same secret and each entity can be
seen as a reliable partner for the coming communication. The applied encryption
algorithm ek() is 2 key 3DES encryption (see Ref. 9 “NIST SP800-67: Recommendation
for the Triple Data Encryption Algorithm (TDEA) Block Cipher, Version 1.1 May 19, 2008)
in Cipher-Block Chaining (CBC) mode as described in ISO/IEC 10116 (see Ref. 10
ISO/IEC 10116: Information technology - Security techniques - Modes of operation for an
n-bit block cipher, February 1, 2006).
7.3.5 Data pages
MF0ICU2 features 144 bytes of data memory. The address range from page 04h to 27h
constitutes the read/write area.
A write access to data memory is achieved with WRITE (see Section 7.5.7 “WRITE) or
COMPATIBILITY WRITE (see Section 7.5.8 “COMPATIBILITY WRITE) command. In
both cases, 4 bytes of memory - (one page) - will be overwritten. Write access to data
memory can be permanently restricted via lock bytes (see Section 7.3.2 “Lock bytes)
and/or permanently or temporary restricted using an authentication (see Section 7.3.4
3DES Authentication).
NFC Forum Type 2 Tag compliancy
MF0ICU2 has been designed to be compliant with NFC Forum Type 2 Tag specification
(see Ref. 5 “MIFARE Ultralight as Type 2 Tag). With its 144 bytes of data memory, it can
easily support use cases like Smart Poster, Hand over, SMS, URL or Call Request.
7.4 Counter
MF0ICU2 features 16-bit one way counter. In its delivery state, counter value is set to
0000h.
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 8 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
7.5 Command set
The ATQA and SAK are identical as for MF0ICU1 (see Ref. 7 “MF0ICU1 Functional
specification MIFARE Ultralight). For information on ISO 14443 card activation, see Ref.
3 “MIFARE ISO/IEC 14443 PICC Selection.
The MF0ICU2 comprises the following command set:
7.5.1 REQA
The MF0ICU2 accepts the REQA command in Idle state only. The response is the 2-byte
ATQA. REQA and ATQA are implemented fully according to ISO/IEC14443-3.
7.5.2 WUPA
The MF0ICU2 accepts the WUPA command in the Idle and Halt state only. The response
is the 2-byte ATQA. WUPA is implemented fully according to ISO/IEC14443-3.
7.5.3 ANTICOLLISION and SELECT of cascade level 1
The ANTICOLLISION and SELECT commands are based on the same command code.
They differ only in the Parameter byte. This byte is per definition 70h in case of SELECT.
The MF0ICU2 accepts these commands in the Ready1 state only. The response is part 1
of the UID.
7.5.4 ANTICOLLISION and SELECT of cascade level 2
The ANTICOLLISION and SELECT commands are based on the same command code.
They differ only in the parameter byte. This byte is per definition 70h in case of SELECT.
The MF0ICU2 accepts these commands in the Ready2 state only. The response is part 2
of the UID.
7.5.5 READ
The READ command needs the page address as a parameter. Only addresses 00h to
2Bh are decoded. For higher addresses the MF0ICU2 returns a NAK. The MF0ICU2
responds to the READ command by sending 16 bytes starting from the page address
defined in the command (e.g. if ADR is ‘03h‘ pages 03h, 04h, 05h, 06h are returned). If
ADR is ‘2Bh’, the contents of pages 2Bh, 00h, 01h and 02h is returned). This is also
applied by configuring the authentication address.
7.5.6 HALT
The HALT command is used to set already processed MF0ICU2 devices into a different
waiting state (Halt instead of Idle), which allows a simple separation between devices
whose UIDs are already known (as they have already passed the anticollision procedure)
and devices that have not yet been identified by their UIDs.
7.5.7 WRITE
The WRITE command is used to program the lock bytes in page 02h, the OTP bytes in
page 03h or the data bytes in pages 04h to 05h. A WRITE command is performed
page-wise, programming 4 bytes in a page.
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 9 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
7.5.8 COMPATIBILITY WRITE
The COMPATIBILITY WRITE command was implemented to accommodate the
established MIFARE PCD infrastructure. Even though 16 bytes are transferred to the
MF0ICU2, only the least significant 4 bytes (bytes 0 to 3) will be written to the specified
address. It is recommended to set the remaining bytes 4 to 15 to all ‘0’.
7.5.9 AUTHENTICATE
The authentication is performed in two steps, therefore MF0ICU2 command set supports
two AUTHENTICATE commands.
The commands are performed in the same protocol as READ, WRITE and
COMPATIBILITY WRITE.
8. Limiting values
[1] Stresses above one or more of the limiting values may cause permanent damage to the device.
[2] Exposure to limiting values for extended periods may affect device reliability.
[3] MIL Standard 883-C method 3015; Human body model: C = 100 pF, R = 1.5 kΩ.
Table 4. Limiting values [1][2]
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
IIinput current -30 mA
Tstg storage temperature 55 +125 °C
Tamb ambient temperature 25 +70 °C
VESD electrostatic discharge
voltage
measured on pin
LA-LB
[3] 2 - kV
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 10 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
9. Abbreviations
10. References
[1] ISO/IECInternational Organization for Standardization/International
Electrotechnical Commission
[2] MIFARE Interface Platform Type Identification Procedure — Application note,
BL-ID Doc. No.: 018413
[3] MIFARE ISO/IEC 14443 PICC Selection — Application note,
BL-ID Doc. No.: 130810
[4] MIFARE Ultralight Features and Hints — Application note, BL-ID Doc. No.:
073121
[5] MIFARE Ultralight as Type 2 Tag — Application note, BL-ID Doc. No.: 130312
[6] MIFARE (Card) Coil Design Guide — Application note, BL-ID Doc. No.: 011732
[7] MF0ICU1 Functional specification MIFARE Ultralight — Product data sheet,
BL-ID Doc. No. 028635
[8] MF0ICU2 MIFARE Ultralight C — Product data sheet, BL-ID Doc. No. 137631
[9] NIST SP800-67: Recommendation for the Triple Data Encryption Algorithm
(TDEA) Block Cipher, Version 1.1 May 19, 2008 — National Institute of Standards
and Technology
[10] ISO/IEC 10116: Information technology - Security techniques - Modes of
operation for an n-bit block cipher, February 1, 2006 — International
Organization for Standardization
Table 5. Abbreviations
Acronym Description
ATQA Answer To ReQuest, type A
BCC Block Check Characters byte
CBC Cipher-Block Chaining
CRC Cyclic Redundancy Check
EEPROM Electrically Erasable Programmable Read-Only Memory
NAK Negative AcKnowledge
OTP One Time Programmable
PCD Proximity Coupling Device
PICC Proximity Integrated Circuit Card
REQA REQuest Answer, type A
RF Radio Frequency
SAK Select AcKnowledge, type A
UID Unique IDentifier
WUPA Wake-UP Command, type A
3DES Triple Data Encryption Standard
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 11 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
11. Revision history
Table 6. Revision history
Document ID Release date Data sheet status Change notice Supersedes
MF0ICU2_SDS_32 20090519 Product short data sheet
PUBLIC
- -
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 12 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
12. Legal information
12.1 Data sheet status
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
12.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
12.3 Disclaimers
General — Information in this document is believed to be accurate and
reliable. However, NXP Semiconductors does not give any representations or
warranties, expressed or implied, as to the accuracy or completeness of such
information and shall have no liability for the consequences of use of such
information.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in medical, military, aircraft,
space or life support equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) may cause permanent
damage to the device. Limiting values are stress ratings only and operation of
the device at these or any other conditions above those given in the
Characteristics sections of this document is not implied. Exposure to limiting
values for extended periods may affect device reliability.
Terms and conditions of sale — NXP Semiconductors products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.nxp.com/profile/terms, including those pertaining to warranty,
intellectual property rights infringement and limitation of liability, unless
explicitly otherwise agreed to in writing by NXP Semiconductors. In case of
any inconsistency or conflict between information in this document and such
terms and conditions, the latter will prevail.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from national authorities.
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
12.4 Licenses
12.5 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
MIFARE — is a trademark of NXP B.V.
MIFARE Ultralight — is a trademark of NXP B.V.
Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contains data from the objective specification for product development.
Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
Product [short] data sheet Production This document contains the product specification.
ICs with DPA Countermeasures functionality
NXP ICs containing functionality
implementing countermeasures to
Differential Power Analysis and Simple
Power Analysis are produced and sold
under applicable license from
Cryptography Research, Inc.
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 13 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
13. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
MF0ICU2_SDS_32 © NXP B.V. 2009. All rights reserved.
Product short data sheet
PUBLIC
Rev. 3 — 19 May 2009
171432 14 of 15
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
14. Tables
Table 1. Quick reference data[1][2][3] . . . . . . . . . . . . . . . . .3
Table 2. Ordering information . . . . . . . . . . . . . . . . . . . . .3
Table 3. Memory organization . . . . . . . . . . . . . . . . . . . . .6
Table 4. Limiting values [1][2] . . . . . . . . . . . . . . . . . . . . . . 9
Table 5. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 6. Revision history . . . . . . . . . . . . . . . . . . . . . . . . 11
15. Figures
Fig 1. MIFARE card reader . . . . . . . . . . . . . . . . . . . . . . .1
Fig 2. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Fig 3. State diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Fig 4. UID/serial number . . . . . . . . . . . . . . . . . . . . . . . . .6
NXP Semiconductors MF0ICU2
MIFARE Ultralight C
© NXP B.V. 2009. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 19 May 2009
171432
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
16. Contents
1 General description . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Contactless energy and data transfer. . . . . . . . 1
1.2 Anticollision. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2.1 Cascaded UID . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 MIFARE‚ RF interface (ISO/IEC 14443 A) . . . . 2
2.2 EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 3
5 Ordering information. . . . . . . . . . . . . . . . . . . . . 3
6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7 Functional description . . . . . . . . . . . . . . . . . . . 4
7.1 Block description . . . . . . . . . . . . . . . . . . . . . . . 4
7.2 State diagram and logical states description . . 5
7.3 Memory organization . . . . . . . . . . . . . . . . . . . . 6
7.3.1 UID/serial number. . . . . . . . . . . . . . . . . . . . . . . 6
7.3.2 Lock bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.3.3 OTP bytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.3.4 3DES Authentication . . . . . . . . . . . . . . . . . . . . 7
7.3.5 Data pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.4 Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.5 Command set . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.1 REQA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.2 WUPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.3 ANTICOLLISION and SELECT
of cascade level 1. . . . . . . . . . . . . . . . . . . . . . . 8
7.5.4 ANTICOLLISION and SELECT
of cascade level 2. . . . . . . . . . . . . . . . . . . . . . . 8
7.5.5 READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.6 HALT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.7 WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5.8 COMPATIBILITY WRITE . . . . . . . . . . . . . . . . . 9
7.5.9 AUTHENTICATE . . . . . . . . . . . . . . . . . . . . . . . 9
8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 9
9 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
11 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 11
12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 12
12.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 12
12.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12.4 Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12.5 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
13 Contact information. . . . . . . . . . . . . . . . . . . . . 13
14 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
15 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
16 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15