ISO 14443

ISO/IEC 14443 is defining the proximity standard of contactless communication. For both types the underlying communication scheme is half duplex with a 106 kbit per second data rate in each direction. In both cases, data transmitted by the card is load modulated with a 847.5 kHz subcarrier. However, both differ in the physical layer and the initialisation procedure (anticollision and selection).

 

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