Security & Chip Card ICs
SLE 55R04
Intelligent 770–Byte EEPROM
with Contactless Interface complying to ISO/IEC 14443 Type A
and Security Logic
Short Product Information January 2001
SLE 55R04 Short Product Information Ref.: SPI_SLE55R04_0101.doc
Revision History: Current Version 2001-01-31
Previous Releases:
Page Subjects (changes since last revision)
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Security & Chip Card ICs,
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SLE 55R04
Intelligent 770–Byte EEPROM
with Contactless Interface complying to ISO/IEC 14443 Type A
and Security Logic
Features
• 770 bytes EEPROM
– Organised in 77 pages located in up to 16 sectors
– Each page organised in 8 bytes for data storage + 2 bytes for administrative purposes
– Configurable number of sectors (1 to 15) & sector size (1 to up to 77 pages)
– Service Area 4 pages
– Configurable Key Area with up to 14 key pairs
– Configurable User Area
– Unique chip identification number
– Access conditions unchangeable in user mode
• Value Counters: up to 65536 units (with a value range from 0 to 2
– Each page in User Area configurable as a Counter
– Support of Anti-Tearing
16
-1)
• High Security Authentication Unit
– 2-way authentication with 64-bit secret key between reader and card
– 2 keys for each sector allow hierarchical key management
– Multi-level security structure possible
– Individual access rights for each key within a sector for each page
– Only one sector can be opened at a time
– Data integrity supported by 16 bit CRC (ISO 3309) and 32 bit MAC (after authentication)
• Access protection of EEPROM by transport keys on chip delivery
• Physical Interface and Anticollision complying to ISO/IEC 14443 Type A
– Carrier frequency: 13.56 MHz
– 106 kbit/s data rate transfer
– Bit oriented anticollision method complying with ISO/IEC 14443
– Contactless transmission of data and supply energy
– Coupling distance from 0 to 10 cm (typ.)
• EEPROM updating (erase and program) time maximum 4 ms per page
1
• EEPROM endurance minimum 105 write/erase cycles
1
• Data retention for minimum of 10 years
)
)
• ESD protection typical 4kV
• Ambient temperature –25 ………… +85°C
1)
Values are temperature dependent
Short Product Information 3 / 8 2001-01-31
Ordering and Packaging information
Table 1 Ordering Information
SLE 55R04
Type Package
1)
Memory Pages Ordering Code
User Admin.
SLE 55R04C
Die 616 bytes 154 bytes 77 on request
SLE 55R04LM MCC2-2-1 616 bytes 154 bytes 77 on request
Pin Description
Figure 1 Pin Configuration Module Contactless Card (top view)
SLE 55R04 LBLA
Figure 2 Pad Configuration Die
Table 2 Pin Definitions and Functions
Symbol Function
LA Antenna connection
LB Antenna connection
1)
Available as a Module Contactless Card (MCC) for embedding in plastic cards or as a die (C) for customer packaging
Short Product Information 4 / 8 2001-01-31
SLE 55R04
1 General Description
SLE 55Rxx-family of contactless memory chips focuses on high security and flexible memory and
sector configuration. This family of memory chips supplies the user with different memory sizes
meeting the requirements of variable applications.
SLE 55R04 complies to ISO/IEC 14443 part 2 and part 3 Type-A (modulation ASK 100%) for
contactless proximity smart cards. The power supply and data are transferred to SLE 55R04 via an
antenna. SLE 55R04 is designed to communicate with a contactless card reader up to a typical
operating distance of 10 cm.
User Area
1 up to 15 Sectors
Configurable Sector Size
up to 77 Pages
Key Area
up to 14 Key Pairs
Service Area
Unique Serial Number
Legend
Blocks marked by cross hatch - Defined by chip manufacturer
Administration
Control of Memory
Area
Access
Figure 3 Memory principle of SLE 55R04
Short Product Information 5 / 8 2001-01-31
SLE 55R04
1.1 Circuit Description
SLE 55R04 consists of a EEPROM memory unit, an analog interface for contactless energy and
data transmission, a control and a crypto unit.
Power
Clock
Antenna
LA
Contactless
Interface
Power Circuit
Rectifier
Clock Extractor
Power on Reset
Voltage Regulator
Analog
Data
Converter
Serial Parallel
Operational
Mode
Crypto Unit Memory Unit
LB
IO Command Authentication
Anticollision
Control Unit
Memory
Access
Figure 4 Block diagram of SLE 55R04
• Analog Contactless Interface consists of:
– Rectifier
– Voltage Regulator
– Power on Reset
– Modulator / Demodulator
– Clock Extractor
• Operational mode
The access to the memory depends on the actual mode of SLE 55R04; the memory is
accessed according to plain or protected mode when the PICC is selected.
• Crypto Unit
Generates random numbers, checks and calculates message authentication code (MAC).
• Memory Unit
770 bytes organised in 77 pages with 8 + 2 bytes each.
• Control Unit
— Decoding and execution of the commands
— Bit oriented anticollision method with 4 or 7 byte long serial numbers (complying to
ISO/IEC 14443-3 − cascade level 1 and 2 are supported). It allows the recognition of
several cards in the field which may be selected and operated in sequence.
— Access to key-protected sectors is only permitted after authentication with an appropriate
key. Only one sector is opened within a session. One sector is optionally configurable
without key protection and authentication.
— Memory access to the pages according to the individual access conditions programmed
for every page and every key
Short Product Information 6 / 8 2001-01-31
SLE 55R04
1.2 System Overview
The system consists of a contactless card on one hand and a contactless card reader together with
an antenna on the other. Operations on protected areas of SLE 55R04 requires a security access
module at the reader or system side to perform a high system security. The security access
module (SAM) holds the algorithm for the fast and secure calculation of the authentication and the
integrity check of the transferred and received data.
ROM
EEPROM
Chip Card
UART
ICC
Chip
Card
RAM
SAM
Address- / Data-Bus
µC
SLF9000N
Analog
Circuitry
Serial
Interface
PICC
Proximity
card
SLE 55Rxx
Antenna
Figure 5 Contactless System Example
• Chip card UART – Interface between Address- / Data-Bus of µ-processor system and reader
contacts
• SLF 9000 – Interface between Address- / Data-Bus of µ-processor system and contactless
interface
• ICC – Integrated Circuit(s) Card with Contacts according to ISO/IEC 7816
• PICC – Proximity Card according to ISO/IEC 14443
• SAM – Security Access Module with contacts according to ISO/IEC 7816
Short Product Information 7 / 8 2001-01-31
SLE 55R04
Contactless Energy and Data Transfer
The operating distance between card and reader antenna is typically up to 10 cm. The card
antenna consists of a simple coil with a few turns embedded in plastic. Contactless cards are
passive. The high speed RF communication interface allows to exchange data with 106 kbit/s. This
high data transmission rate permits short transaction times.
An intelligent anticollision function 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.
Multi-Application Functionality
SLE 55R04 provides the possibility to use one large sector or several smaller ones with different
sizes.
Optionally, one sector can be opened without authentication to read e.g. additional card and issuer
information.
Thus, SLE 55R04 meets the need of low cost memory applications like public transport as well as
the more extensive needs of payment systems, which is also supported by the counter function.
Two different key sets for each memory sector support systems using key hierarchies.
High System Security
In the system design, special emphasis has been placed on security against fraud.
The serial number is unique for each card and can not be changed. Access to the protected
memory of the card is only possible after a mutual authentication (challenge/response) which is a
function of the unique serial number, random number and key to be used. Authentication is only
possible with a security access module, SAM, that holds the algorithm.
Therefore, for all operations on the protected memory, the SAM calculates and checks by a
message authentication code (MAC) the integrity of the transferred data. Thus, operations on the
protected memory are key protected, and restricted by page-configurable access conditions.
Short Product Information 8 / 8 2001-01-31
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