MFRC-522 RC522

Product Summary

The MFRC-522 RC522 is a highly integrated reader/writer IC for contactless communication at 13.56MHz. The MFRC-522 RC522 reader supports ISO/IEC 14443A/MIFARE mode. Internal transmitter of the MFRC-522 RC522 is able to drive a reader/writer antenna designed to communicate with ISO/IEC14443A/MIFARE cards and transponders without additional active circuitry. The MFRC-522 RC522 supports contactless communication and uses MIFARE higher transfer speeds up to 848kBd in both directions.

Parametrics

MFRC-522 RC522 absolute maximum ratings: (1) analog supply voltage VDDA: -0.5V to +4.0V; (2) digital supply voltage VDDD: -0.5V to +4.0V; (3) PVDD supply voltage VDD (PVDD) : -0.5V to +4.0V; (4) TVDD supply voltage VDD (TVDD) : -0.5V to +4.0V; (5) SVDD supply voltage VDD (SVDD) : -0.5V to +4.0V;(6) total power dissipation Ptot: 200mW (per package; and VDD in shortcut) ; (7) junction temperature Tj: 100°C; (8) electrostatic discharge voltageHBM; 1500Ω, 100pF, JESD22-A114-B: 2000V, MM; 0.75 μH, 200pF;JESD22-A114-A: 200V.

Features

MFRC-522 RC522 features: (1) Highly integrated analog circuitry to demodulate and decode responses; (2) Buffered output drivers for connecting an antenna with the minimum number of external components; (3) Supports ISO/IEC 14443 A/MIFARE; (4) Typical operating distance in Read/Write mode up to 50 mm depending on the antenna size and tuning; (5) Supports MF1xxS20, MF1xxS70 and MF1xxS50 encryption in Read/Write mode; (6) Supports ISO/IEC 14443 A higher transfer speed communication up to 848 kBd; (7) Supports MFIN/MFOUT; (8) Additional internal power supply to the smart card IC connected via MFIN/MFOUT; (9) Supported host interface: (a) SPI up to 10 Mbit/s; (b) I2C-bus interface up to 400 kBd in Fast mode, up to 3400 kBd in High-speed mode; (c) RS232 Serial UART up to 1228.8 kBd, with voltage levels dependant on pin voltage supply; (10) FIFO buffer handles 64 byte send and receive; (11) Flexible interrupt modes; (12) Hard reset with low power function; (13) Power-down by software mode; (14) Programmable timer; (15) Internal oscillator for connection to 27.12 MHz quartz crystal; (16) 2.5 V to 3.3 V power supply; (17) CRC coprocessor; (18) Programmable I/O pins; (19) Internal self-test.

Diagrams