|Place of Origin:||China|
|Brand Name:||MIFARE 1K (S50) Smart Card|
|Model Number:||MIFARE 1K (S50) Smart Card|
|Minimum Order Quantity:||1pc|
|Payment Terms:||T/T, Western Union，Paypal|
|Chip:||NXP MIFARE 1 IC S50||Storage Capacity:||1K Bytes|
|Working Frequency:||13.56 MHz||Communication Rate:||106Kbps|
|Operating Distance:||0 ~ 100mm||Operating Time:||1 ~ 5ms|
|Operating Temperature:||-20 ~ 55 ℃ (-68°F ~ +131°F)||EEPROM:||>100, 000 Times|
|Data Retention:||>10 Years||Dimension:||ISO Standard Card 85.6x54x0.82|
|Packaging Materials:||PVC, PET, PETG, 0.13mm Copper Wire||Encapsulation Technology:||Ultrasonic Automatic Plant Line / Automatic Touch Welding|
|RF Standard:||ISO14443A||Available For Size:||85.6×54, 83×20, 70×40, 50×50, 45×45, 45×28, 44×20, 38×38, 35×30|
Philips has developed the MIFARE® MF1 IC S50 to be used in contactess smart cards according to ISO/IEC 14443A. The
communication layer ( MIFARE® RF Interface) complies to parts 2 and 3 of the ISO/IEC 14443A standard. The security layer
sports the field-proven CRYPTO1 stream cipher for secure data exchange of the MIFARE® Classic family.
• 4.1 Contactless Energy and Data Transfer
In the MIFARE® system, the MF1 IC S50 is connected to a coil with a few turns and then embedded in plastic to form the passive
contactless smart card. No battery is needed. When the card is positioned in the proximity of the Read Write Device (RWD)
antenna, the high speed RF communication interface allows to transmit data with 106 kBit/s.
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 in the field.
• 4.3 User Convenience
The MIFARE® system is designed for optimal user convenience. The high data transmission rate for example allows complete
ticketing transactions to be handled in less than 100 ms. Thus, the MIFARE card user is not forced to stop at the RWD antenna
leading to a high throughput at gates and reduced boarding times onto busses. The MIFARE® card may also remain in the wallet
during the transaction, even if there are coins in it.
• 4.4 Security
Special emphasis has been placed on security against fraud. Mutual challenge and response authentication, data ciphering and
message authentication checks protect the system from any kind of tampering and thus make it attractive for ticketing
applications. Serial numbers, which can not be altered, guarantee the uniqueness of each card.
• 4.5 Multi-application Functionality
The MIFARE® system offers real multi-application functionality comparable to the features of a processor card. Two different keys
for each sector support systems using key hierarchies.
• 4.6 Delivery Options
• Die on wafer
• Bumped die on wafer
• Chip Card Module
5. Functional Description
• 5.1 Block Description
The MF1 IC S50 chip consists of the 1 Kbyte 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 MF1 IC S50. No further external
components are necessary. (For details on antenna design please refer to the document MIFARE Card IC Coil Design Guide.)
– Clock Regenerator
– Power On Reset
– Voltage Regulator
• Anticollision: Several cards in the field may be selected and operated in sequence
• Authentication: Preceding any memory operation the authentication procedure ensures that access to a block is only possible
via the two keys specified for each block
• Control & Arithmetic Logic Unit: Values are stored in a special redundant format and can be incremented and decremented
• Crypto unit: The field-proven CRYPTO1 stream cipher of the MIFARE® Classic family ensures a secure data exchange
• EEPROM: 1 Kbyte are organized in 16 sectors with 4 blocks each. A block contains 16 bytes. The last block of each sector is
called “trailer”, which contains two secret keys and programmable access conditions for each block in this sector
• 5.2 Communication Principle
The commands are initiated by the RWD and controlled by the Digital Control Unit of the MF1 IC S50 according to the access
conditions valid for the corres-ponding sector.
• • 5.2.1 REQUEST STANDARD / ALL
After Power On Reset (POR) of a card it can answer to a request command - sent by the RWD to all cards in the antenna field -
by sending the answer to request code (ATQA according to ISO/IEC 14443A).
• • 5.2.2 ANTICOLLISION LOOP
In the anticollision loop the serial number of a card is read. If there are several cards in the operating range of the RWD, they can
be distinguished by their unique serial numbers and one can be selected (select card) for further transactions. The unselected
cards return to the standby mode and wait for a new request command.
• • 5.2.3 SELECT CARD
After authentication any of the following operations may be performed:
• Read block
• Write block
• Decrement:Decrements the contents of a block and stores the result in a temporary internal data-register
• Increment: Increments the contents of a block and stores the result in the data-register
• Restore: Moves the contents of a block into the data-register
• Transfer: Writes the contents of the temporary internal data-register to a value block