Part Number : MFRC522
Function : Standard 3V MIFARE reader solution
Package : HVQFN 32 Tpe
Maker : NXP Semiconductors.
Pinouts : 
Description :
The device is a highly integrated reader / writer IC for contactless communication at 13.56 MHz. The reader supports ISO/IEC 14443 A/MIFARE mode.
The MFRC522 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.
Features :
1. FIFO buffer handles 64 byte send and receive
2. Flexible interrupt modes
3. Hard reset with low power function
4. Power-down by software mode
5. Programmable timer
Datasheet PDF Download : 
Others datasheet of same file :
MFRC52201HN1, MFRC52201HN1/TRAYB,
MFRC52201HN1/TRAYBM, MFRC52202HN1
