NXP MFRC523无接触读写13.56 MHz通信方案

NXP 公司的MFRC523是高度集成无接触读/写13.56 MHz通信,支持ISO/IEC 14443 A/MIFARE模式,支持ISO/IEC 14443 B 读/写模式,它的内置发送器能驱动ISO/IEC 14443 A/MIFARE卡的读/写天线,接收器能对ISO/IEC 14443 A/MIFARE兼容卡实现解调和解码.传输速率双向高达848kBd.本文介绍MFRC523主要特性,方框图, ISO/IEC 14443 A/MIFARE 读/写模式通信方框图和MFIN和MFOUT信号流程图以及典型应用电路图.

The MFRC523 is a highly integrated reader/writer for contactless communication at 13.56 MHz. The MFRC523 reader supports ISO/IEC 14443 A/MIFARE mode. The MFRC523’s internal transmitter is able to drive a reader/writer antenna designed to communicate with ISO/IEC 14443 A/MIFARE cards and transponders without additional active circuitry. The receiver module provides a robust and efficient implementation for demodulating and decoding signals from ISO/IEC 14443 A/MIFARE compatible cards and transponders. The digital module manages the complete ISO/IEC 14443 A framing and error detection (parity and CRC) functionality.

The MFRC523 supports MIFARE Mini, MIFARE 1K and MIFARE 4K (MIFARE Standard) products. The MFRC523 supports contactless communication and uses MIFARE higher transfer speeds up to 848 kBd in both directions.
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