Rfid Card With Ultralight U20 For Transportation

RFID Card with Ultralight U20 for Transportation

RFID Card is widely used for electronic-purse, highway toll gates, public transportation system and so on.
Contactless card is also called Radio-wave Frequency (RF) card, it is a new technology developed in recent years, combined radio frequency identification technology and IC card technology, solved the problem of no power and contactless, it is an important improvement in electronic device area.

Features:
1. MIFARE RF Interface (ISO/IEC 14443 A)
Contactless transmission of data and supply energy (no battery needed
Operating distance: Up to 100mm (depending on antenna geometry)
Operating frequency:13.56 MHz
Fast data transfer:106 k bit/s
High data integrity:16 Bit CRC, parity, bit coding, bit counting
True anti-collision
Typical ticketing transaction:< 100 ms (including backup management)

2. EEPROM
Philips Mifare S50: 1 K byte, organized in 16 sectors with 4 blocks of 16 bytes each (one block consists of 16 byte)
Philips Mifare S70: 4 K byte, organized in 32 sectors with 4 blocks and 8 sectors with 16 blocks (one block consists of 16 byte)
User definable access conditions for each memory block
Data retention of 10 years
Write endurance 100.000 cycles

3. Security
Mutual three pass authentication (ISO/IEC DIS9798-2)
Data encryption on RF-channel with replay attack protection
Individual sert of two keys per sector (per application) to support multi-application with key hierarchy
Unique serial number for each device
Transport key protects access to EEPROM on chip delivery