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The MIFARE Ultralight^® C contactless IC is a cost effective solution using the open 3DES cryptographic standard for chip authentication and data access.

The widely adopted 3DES standard enables easy integration into existing infrastructures and the integrated authentication command set provides an effective cloning protection that helps to prevent counterfeit of tags.

Tickets, vouchers or tags based on MIFARE Ultralight C can act as single trip mass transit tickets, event tickets or as low cost loyalty cards and are also used for device authentication.

MIFARE Ultralight C operates according to the ISO/IEC 14443 A standard, allowing an operating distance of up to 10 cm with true anti-collision support. It also offers extended user memory compared to MIFARE Ultralight EV1 and a range of additional security features previously unavailable on low cost contactless ICs. Existing MIFARE Ultralight C product-based solutions benefit from the same authentication commands as being used for MIFARE DESFire EV1. The MIFARE Ultralight C is furthermore compliant to the NFC Tag type 2.

NXP Semiconductors has developed the MIFARE Ultralight C – Contactless ticket IC
MF0ICU2 to be used in a contactless smart ticket or smart card in combination with
Proximity Coupling Devices (PCD). The communication layer (MIFARE RF Interface)
complies to parts 2 and 3 of the ISO/IEC 14443 Type A standard (see Ref. 1 and Ref. 2).
The MF0ICU2 is primarily designed for limited use applications such as public
transportation, event ticketing and loyalty 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 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 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
interference from another card in the field.

Key features

• Fully ISO/IEC 14443 A 1-3 compliant
• NFC Forum Type 2 Tag compliant
• 106 Kbit/s communication speed
• Anti-collision support
• 1536 bits (192 bytes) EEPROM memory
• Protected data access via 3DES authentication
• Cloning protection
• Command set compatible to MIFARE Ultralight
• Memory structure as in MIFARE Ultralight (pages)
• 16 bit counter
• Unique 7 bytes serial number
• Number of single write operations: 10,000

Benefits for service providers

• Ability to detect cloned tickets
• Availability of statistical data to optimize the system
• Efficient fleet management
• Higher customer throughput
• Reduction of maintenance costs
• Reduction of cash handling
• Fraud prevention
• Easy system enhancement in limited-use applications

Key applications

• Public transportation
• Event ticketing
• Loyalty