ISO/IEC 14443 is an international standard (defined by International Organization of Standardization) for Identification cards / Contactless integrated circuit cards / RFID card, which describes the parameters for identification cards or objects for international interchange. ISO/IEC 14443 uses following terms for components:
PCD: proximity coupling device (the RFID card reader)
PICC: proximity integrated circuit card (the RFID card)
ISO/IEC 14443-1:2018 Part 1: Physical characteristics, specifies in which the physical dimensions of the card should be compliant with ISO/IEC 7810 or ISO/IEC 15457-1
ISO/IEC 14443-2:2016 Part 2: Radio frequency power and signal interface which specifies characteristic of the fields to be provided for power and bi-directional communication between proximity coupling devices (PCDs) and proximity cards or objects (PICCs).
ISO/IEC 14443-3:2018 Part 3: Initialization and anti-collision, which defines polling for proximity cards or objects (PICCs) entering the field of a proximity coupling device (PCD); the frames and timing used throughout the begining phase of communication between PCDs and PICCs; the byte format etc.
ISO/IEC 14443-4:2018 Part 4: Transmission protocol which specifies transmission protocol including features like the special needs of a contactless conditions and defines the activation and deactivation sequence of the protocol.
Types and the difference
There are two types under ISO/IEC 14443 standard, that Type A and Type B, both of which communicate via radio at 13.56 MHz (RFID HIGH FREQUENCY). The main differences between these two kinds concern modulation methods, coding schemes (Part 2) and protocol initialization procedures (Part 3). Both Types RFID cards obey the same transmission protocol (described in Part 4).