MFRC522_(2007) 데이터 시트보기 (PDF) - NXP Semiconductors.

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MFRC522_
(Rev.:2007)

Contactless Reader IC

NXP Semiconductors. 

NXP Semiconductors

MFRC522

Contactless Reader IC

8. Functional description

MFRC522 transmission module supports the Reader/Writer mode for

ISO/IEC 14443A/MIFARE® with different transfer speeds and modulation schemes.

Battery

µC

RC522

Reader/Writer

Fig 4. MFRC522 Reader/Writer mode.

ISO 14443A Card

Contactless Card

The following diagram Figure 5 “ISO/IEC 14443A/MIFARE® Reader/Writer mode

communication diagram.” describes the communication on a physical level.

ISO14443A

Reader

1. Reader to Card 100 % ASK ,

Miller Coded,

Transfer speed 106 to 848 kbit/s

ISO14443A

Card

RC522

2. Card to Reader, Subcarrier Loadmodula,tion

Manchester Coded or BPSK,

Transfer speed 106 to 848 kbit/s

Fig 5. ISO/IEC 14443A/MIFARE® Reader/Writer mode communication diagram.

The communication overview in Table 4 “Communication overview for

ISO/IEC 14443A/MIFARE® reader/writer” describes the physical parameters.

Table 4: Communication overview for ISO/IEC 14443A/MIFARE® reader/writer

Communication

direction

transfer

speed

ISO/IEC 14443A/ MIFARE®

106 kbit/s

212 kbit/s 424 kbit/s

848 kbit/s

Reader → Card

(send data from the

MFRC522 to a

card)

Modulation

on reader

side

bit coding

100% ASK 100% ASK 100% ASK 100% ASK

Modified Miller Modified

Modified

Modified

coding

Miller coding Miller coding Miller coding

Bitlength

(128/13.56) μs (64/13.56) μs (32/13.56) μs (16/13.56) μs

112132

Product data sheet

Rev. 3.2 — 22 May 2007

© NXP B.V. 2007. All rights reserved.

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