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.
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