The ST21NFCB is a single chip designed for supporting 13.56 MHz contactless communication，including Near Field Communication （NFC）functions in the three operating modes：Card emulation，Reader/Writer and Peer-to-peer communication.This product is based on an advanced Smartcard ST21 microcontroller with 36 Kbytes of EEPROM. It includes an integrated RF Analog Front End （AFE） supporting all the contactless proximity （ISO/IEC 14443， ECMA 340 （NFCIP-1），and vicinity （ISO/IEC 15693，ISO/IEC 18000-3 Mod1） standards.

文档内容节选

ST21NFCB Near field communication controller FBGA WFBGA 64pin Features NFC operating modes supported Card emulation Reader Writer Peertopeer communication Hardware features 36 Kbytes of EEPROM High integrated analog front end AFE for RF transmission and reception including automatic card and field detection modes Battery Off and Switched Off modes supported in Card Emulation mode Optimized power consumption modes Battery voltage monitoring Support for up to 3 external Secure Eleme......