说明：  MF RC531 是应用于13.56MHz 非接触式通 信中高集成读写卡芯片系列中的一员。该读写卡 芯片系列利用了先进的调制和解调概念，完全集 成了在13.56MHz 下所有类型的被动非接触式通 信方式和协议。芯片管脚兼容MF RC500、MF RC530 和SL RC400。 MF RC531 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。 2.特
(MF RC531 is applied to 13.56MHz contactless communication highly integrated chip card reader in a series. The card reader chip series use advanced modulation and demodulation concept completely integrated in all types of passive 13.56MHz contactless communication methods and protocols. Chip pin compatible MF RC500, MF RC530 and the SL RC400. MF RC531 supports all layers ISO/IEC14443A/B and MIFARE Classic protocol, and is compatible with the standard criteria. MIFARE contactless support high-speed communication baud rate. The transmitter does not need to increase the active part of the internal circuit can directly drive the operation of the antenna near distance (up to 100mm). The receiver part provides a robust and effective demodulation and decoding circuitry for ISO14443A compatible transponder signal. The digital part handles ISO14443A framing and error detection (Parity & CRC). In addition, it supports fast CRYPTO1 encryption algorithm used to verify the MIFARE products. Commu)