该文档为国际标准ISO14443的翻译资料，涉及到ISO14443协议的物理特性、电气特性、接口信号、传输协议、TYPEA、TYPEB等等标准，是开发门禁、一卡通、cpu卡的必备资料。-Physical properties of the document as an International Standard ISO14443 translated information relates to ISO14443 protocol, electrical characteristics, interface signals, transport protocols, TYPEA, TYPEB etc. standards, is essential to develop data access control, card, cpu card.