The RC522 RFID card reader is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. The RFID-RC522 reader supports ISO/IEC 14443 A/MIFARE and NTAG. The RFID-RC522 internal transmitter can 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.