ISO 14443
ISO/IEC 14443 - Identification cards - Contactless integrated circuit cards - Proximity cards
Overview
Defines proximity contactless smart cards operating at 13.56 MHz with a read range of up to ~10 cm. Split into four parts covering physical characteristics, radio interface (Type A and Type B), initialization and anti-collision, and transmission protocol. Used by payment cards (Visa payWave, Mastercard PayPass), passports (ICAO 9303), and access badges.
Why it matters for RFID
The standard behind contactless payment (NFC payments), e-passports, and many access control cards. NFC devices are compatible with ISO 14443 tags.