MFRC522 Overview
The MFRC522 is a highly integrated reader/writer IC for contactless munication at 13.56 MHz. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE and NTAG. The MFRC522’s internal transmitter is able to drive a reader/writer antenna designed to municate with ISO/IEC 14443 A/MIFARE cards and transponders without additional active circuitry.
MFRC522 Key Features
- Increased stability of the reader IC in rough conditions
- An additional timer prescaler, see Section 8.5
- A corrected CRC handling when RX Multiple is set to 1
- Serial Peripheral Interface (SPI)
- Serial UART (similar to RS232 with voltage levels dependant on pin voltage supply)
- I2C-bus interface
- Highly integrated analog circuitry to demodulate and decode responses
- Supports ISO/IEC 14443 A/MIFARE and NTAG
- Typical operating distance in Read/Write mode up to 50 mm depending on the
- Supports MF1xxS20, MF1xxS70 and MF1xxS50 encryption in Read/Write mode