NXP MF RC522


The MF RC522 is a highly integrated reader/writer for contactless communication at 13.56 MHz.

The MF RC522 reader supports ISO 14443A / MIFARE® mode. The MF RC522’s internal transmitter part is able to drive a reader/writer antenna designed to communicate with ISO/IEC 14443A/MIFARE® cards and transponders without additional active circuitry. The receiver part provides a robust and efficient implementation of a demodulation and decoding circuitry for signals from ISO/IEC 14443A/MIFARE® compatible cards and transponders. The digital part handles the complete ISO/IEC 14443A framing and error detection (Parity & CRC).

The MF RC522 supports MIFARE®Classic (e.g. MIFARE® standard) products. The MF RC522 supports contactless communication using MIFARE® higher transfer speeds up to 848 kbit/s in both directions. 

Features

  • Highly integrated analog circuitry to demodulate and decode responses
  • Buffered output drivers to connect an antenna with minimum number of external components
  • Supports ISO/IEC 14443A / MIFARE®
  • Typical operating distance in Reader/Writer mode for communication to a ISO/IEC 14443A / MIFARE® up to 50 mm depending on the antenna size and tuning
  • Supports MIFARE® Classic encryption in Reader/Writer mode
  • Supports ISO/IEC 14443A higher transfer speed communication up to 848 kbit/s
  • Support of the MFIN / MFOUT
  • Additional power supply to directly supply the smart card IC connected via MFIN / MFOUT
  • Supported host interfaces:
    • SPI interface up to 10 Mbit/s
    • I²C interface up to 400 kbit/s in fast mode, up to 3400 kbit/s in high-speed mode
    • serial UART in different transfer speeds up to 1228.8 kbit/s, framing according to the RS232 interface with voltage levels according pad voltage supply
  • Comfortable 64 byte send and receive FIFO-buffer
  • Flexible interrupt modes
  • Hard reset with low power function
  • Power-down mode per software
  • Programmable timer
  • Internal oscillator to connect 27.12 MHz quartz
  • 2.5 - 3.3 V power supply
  • CRC Co-processor
  • Free programmable I/O pins
  • Internal self test
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