In simple terms, the difference in ISO specification relates to the 'language' the NFC tag uses to communicate. Think of it like that the NFC tags are all 'speaking' but one is speaking in French and the other in English.
The use of the ISO standard means that there is a clearly defined specification and all devices must adhere to this. Here are the main ISO standards relevant to NFC tags to give some idea of the technical aspects the different specifications cover :
ISO/IEC 14443
Part 1: Physical characteristics of contactless cards.
Part 2: Radio frequency power and signal interface (13.56 MHz).
Part 3: Initialization and anticollision protocols.
Part 4: Transmission protocol for advanced functions like authentication and encryption1.
ISO/IEC 15693
This standard is often referred to as vicinity cards as the theoretical scan distance is much longer.
Part 1: Physical characteristics.
Part 2: Radio frequency power and signal interface.
Part 3: Initialization and anticollision protocols
Seritag - 28 Nov 2024