MF RC522支持ISO/IEC14443A/B的所有层和MIFARE?经典协议，以及与该标准兼容的标准。支持高速MIFARE?非接触式通信波特率。内部的发送器部分不需要增加有源电路就能够直接驱动近操作距离的天线（可达100mm）。接收器部分提供一个坚固而有效的解调和解码电路，用于ISO14443A兼容的应答器信号。数字部分处理ISO14443A帧和错误检测（奇偶＆CRC）。此外，它还支持快速CRYPTO1加密算法，用于验证MIFARE系列产品。与主机通信模式有8位并行和SPI模式，用户可根据不同的需求选择不同的模式，这样给读卡器/终端的设计提供了极大的灵活性。(MF RC522 supports all layers of ISO/IEC14443A/B and the classic MIFARE protocol, as well as standards compatible with this standard. Supports high-speed MIFARE, contactless communications, baud rates. The internal transmitter does not need to add an active circuit to directly drive an antenna near the operating distance (up to 100mm). The receiver section provides a robust and efficient demodulation and decoding circuit for ISO14443A compatible transponder signals. The digital part of ISO14443A frames and error detection (parity CRC). In addition, it supports fast CRYPTO1 encryption algorithms for validating MIFARE products. The host communication mode has 8 bit parallel and SPI mode, and the user can select different modes according to different requirements, which provides great flexibility for the design of the reader / terminal.)