MFRC522 非接触式读卡芯片

MFRC522 概述

The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE mode. The MFRC522’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.

MFRC522 特性

* Highly integrated analog circuitry to demodulate and decode responses

* Buffered output drivers for connecting an antenna with the minimum number of external components

* Supports ISO/IEC 14443 A/MIFARE

* Typical operating distance in Read/Write mode up to 50 mm depending on the antenna size and tuning

* Supports MF1xxS20, MF1xxS70 and MF1xxS50 encryption in Read/Write mode

* Supports ISO/IEC 14443 A higher transfer speed communication up to 848 kBd

* Supports MFIN/MFOUT

* Additional internal power supply to the smart card IC connected via MFIN/MFOUT

* Supported host interfaces