Contactless 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; 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 (values are temperature dependent)
- Data retention > 10 years
- User definable access condition for each memory block
Security Features
- SLE66R35I: 4-byte fixed non unique number (FNUID)
- SLE66R35R: 4-byte fixed reused identity number (r-ID), 4-byte UID previously issued
- SLE 66R35E7: 7-byte Unique IDentification number (UID). Support of 4-byte Random Number (RND-ID) and 4-byte fixed non-unique number (FNUID) according to ISO/IEC 14443-3 Type A
- Mutual three-pass authentication between card and reader for basic security
– 48-bit key length
– 2 keys per sector enabling key management
– Transport key at chip delivery
- Selective memory access secured by authentication and access conditions
- Suited to multifunctional applications: individual key sets for each EEPROM sector
- Data encryption for RF channel
- Dedicated Value Counter
- Data integrity supported by CRC, Parity Check, etc.
