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MFRC522 Datasheet(PDF) 1 Page - NXP Semiconductors |
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MFRC522 Datasheet(HTML) 1 Page - NXP Semiconductors |
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1 / 109 page  1. Introduction This document describes the functionality of the contactless reader/writer MFRC522. It includes the functional and electrical specifications. 2. General description The MFRC522 is a highly integrated reader/writer for contactless communication at 13.56 MHz. The MFRC522 reader supports ISO 14443A / MIFARE® mode. The MFRC522’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 MFRC522 supports MIFARE®Classic (e.g. MIFARE® Standard) products. The MFRC522 supports contactless communication using MIFARE® higher transfer speeds up to 848 kbit/s in both directions. Various host interfaces are implemented: • SPI interface • serial UART (similar to RS232 with voltage levels according pad voltage supply) • I2C interface. 3. 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 MFRC522 Contactless Reader IC Rev. 3.2 — 22 May 2007 Product data sheet 112132 PUBLIC INFORMATION |
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