SLE66R35 MFCC1 - Infineon Technologies

Chip Card & Security ICs

Mifare® NRG

SLE 66R35

Intelligent 1 Kbyte Memory Chip

with Interface for Contactless Transmission

according to the Mifare®-System

Short Product Information April 2007

SLE 66R35 Short Product Information Ref.: SLE66R35_ShortProductInfo_2007-04.doc

Revision History: Current Version 2007-04-16

Previous Releases: 2006-11-03

Page Subjects (changes since last revision)

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Chip Card & Security ICs,

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Mifare® NRG

SLE 66R35

Short Product Information 3 / 7 2007-04-16

Intelligent 1 Kbyte Memory Chip

with Interface for Contactless Transmission, Security Logic

and Anticollision according to the Mifare®-System 1)

Features

Contactless Mifare® Interface

• Physical Interface and Anticollision compliant to ISO/IEC 14443-2 and -3, Type A

– Operating frequency 13.56 MHz; data rate 106 kbit/s

– Contactless transmission of data and supply energy

– Anticollision logic: Several cards may be operated in the field simultaneously

• Read and write distance up to 10 cm and more (influenced by external circuitry i.e. reader and

inlay design)

• Short transaction times: Typical ticketing transaction < 100 ms (including backup); transaction

possible when card is moving

1 Kbyte EEPROM

• Block organization of memory, 16 sectors with fixed 4 blocks of 16 bytes each

• EEPROM updating time per block less than 4 ms

• Endurance > 100.000 erase / write cycles / bit2)

• Data retention > 10 years2)

• User definable access condition for each memory block

Security Features

• Unique chip identification number

• Mutual three-pass authentication between card and reader

– 48-bit key length

– 2 keys per sector enabling key management

– Transport key at chip delivery

• Data encryption for RF channel

• Data integrity supported by several mechanisms:

– 16-bit CRC

– parity check

– bit count checking

– channel monitoring

• Selective memory access control secured by authentication and access conditions

• Secure value counters for prepaid values

• Suited to multifunctional applications: Individual key sets are available for each EEPROM sector

Electrical characteristics

• ESD protection typical 4 kV

• Ambient temperature –25 … +70°C for chip

1) Mifare® is a registered trademark of Philips Electronics N.V.

2) Values are temperature dependent

Mifare® NRG

SLE 66R35

Short Product Information 4 / 7 2007-04-16

1 Ordering and Packaging information

Table 1 Ordering Information

Type Package1) Remark Ordering Code

SLE 66R35 C Die (on Wafer) sawn / unsawn on request

SLE 66R35 NB Die (on Wafer) NiAu-Bump, sawn on request

SLE 66R35 MFCC1 S-MFCC1-2-1 FCoS™ 2) on request

SLE 66R35 MCC2 P-MCC2-2-1 on request

SLE 66R35 MCC8 P-MCC8-2-3 on request

For more ordering information (wafer thickness and height of NiAu-Bump) please contact your local

Infineon sales office.

Pin Description

Figure 1 Pin Configuration Module Contactless Card MFCC1 (top / bottom view)

Figure 2 Pin Configuration Module Contactless Card MCC8 (top / bottom view)

Figure 3 Pin Configuration Module Contactless Card - MCC2 in (top view)

1) Available as a Module Flip Chip Contactless (MFCC1), Module Contactless Card (MCC) for embedding in plastic

cards, as NiAu-bump version (NB) or as a die on sawn / unsawn wafer for customer packaging

2) FCoS™ Flip Chip on Substrate

Mifare® NRG

SLE 66R35

Short Product Information 5 / 7 2007-04-16

SLE 66R35 LB

Figure 4 Pad Configuration Die

Table 2 Pin Definitions and Functions

Symbol Function

LA Antenna Connection

LB Antenna Connection

Mifare® NRG

SLE 66R35

Short Product Information 6 / 7 2007-04-16

2 Mifare® System Overview

SLE 66R35 is designed to operate in the Mifare system. Mifare is a contactless proximity smart

card system compliant to ISO/IEC 14443-2 and -3. The system consists of a smart card and a card

reader together with an antenna.

Contactless Energy and Data Transfer

In the Mifare system the operating distance between card and reader antenna is up to 10 cm and

more (influenced by external circuitry i.e. reader-antenna configuration). The card's antenna

consists of a simple coil with a few turns embedded in plastic. Mifare cards are passive - they do

not contain a battery. The high speed RF communication interface transmits at up to 106 kbit/s.

Mifare - The User-Friendly Contactless System

The Mifare system is designed to be user-friendly. High data transmission rate results in short

transaction times, the effect being that a Mifare card user can move freely through a reader gate

with minimum disruption. A typical ticketing transaction can be handled in less than 100 ms.

Robust contactless transmission means that the Mifare card may also remain in the wallet of the

user even if there are coins in it.

An intelligent anticollision function enables more than one card in the field to operate

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.

Multi-Application Functionality

The Mifare system is especially suited for the use in multi-application schemes, for example

combining transportation revenue collection scheme and a ticketing system, for example stadium

ticketing. Both applications can be performed with the same card, as hierarchical key management

is supported. This means that two different keys for each memory sector can be assigned to

enable authentication to that sector.

System Security

In the Mifare system design, emphasis has been placed on security against fraud. Access to the

card memory is only allowed after a three pass authentication. The serial number is unique for

each card and can never be changed. Each data transmission is enciphered. Configurable access

conditions protected by secret keys for memory operations as read or write protect from misuse.

Figure 5 Mifare® System Overview

Mifare® NRG

SLE 66R35

Short Product Information 7 / 7 2007-04-16

3 Circuit Description

SLE 66R35 consists of an EEPROM memory of 1 Kbyte organized in 16 sector with 4 blocks each

containing 16 bytes, an analog interface for contactless energy and data transmission and a

control unit. The power supply and data are transferred to SLE 66R35 via an antenna, which

consists of a coil with few turns directly connected to the module. No further external components

are necessary. The circuit is designed to communicate with a card-reader at an operating distance

of up to 10 cm (or more) depending on the reader-antenna configuration.

Figure 6 Block Diagram

• Analog Contactless Interface:

The Analog Contactless Interface comprises the voltage rectifier, voltage regulator and system

clock to supply the IC with appropriate power. Additionally the data stream is modulated and

demodulated.

• Anticollision

Internal logic of SLE 66R35 ensures the recognition of several cards in the field, which may be

selected and operated in sequence.

• Authentication Logic

Correct execution of any memory operation can only occur after the authentication procedure

with a specific key.

• Control Logic

Access to a block is defined by the associated access conditions for that block. These are

programmed individually for each block in a sector.

• Arithmetic Unit

Arithmetic Capability: Increase and decrease of values stored in a special redundant format.

• EEPROM: 1 Kbyte organized in 16 sectors with 4 blocks by 16 bytes each. Last block of each

sector is called "Sector Trailer" and used for a pair of secret keys and programmable access

conditions for each block.