mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 9

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Functional description
112132
Product data sheet
MFRC522 transmission module supports the Reader/Writer mode for
ISO/IEC 14443A/MIFARE
The following diagram
communication diagram.”
The communication overview in
ISO/IEC 14443A/MIFARE
Table 4:
Communication
direction
Reader → Card
(send data from the
MFRC522 to a
card)
Fig 4. MFRC522 Reader/Writer mode.
Fig 5.
ISO14443A
Reader
Battery
RC522
ISO/IEC 14443A/MIFARE
Communication overview for ISO/IEC 14443A/MIFARE
Reader/Writer
RC522
transfer
speed
Modulation
on reader
side
bit coding
Bitlength
Miller Coded,
Transfer speed 106 to 848 kbit/s
1. Reader to Card 100 % ASK ,
Figure 5 “ISO/IEC 14443A/MIFARE
Rev. 3.2 — 22 May 2007
®
®
describes the communication on a physical level.
with different transfer speeds and modulation schemes.
reader/writer”
Transfer speed 106 to 848 kbit/s
Manchester Coded or BPSK,
Table 4 “Communication overview for
2. Card to Reader, Subcarrier Loadmodulation
®
ISO/IEC 14443A/ MIFARE
106 kbit/s
100% ASK
Modified Miller
coding
(128/13.56) μs (64/13.56) μs (32/13.56) μs (16/13.56) μs
Reader/Writer mode communication diagram.
describes the physical parameters.
212 kbit/s
100% ASK
Modified
Miller coding
®
®
Reader/Writer mode
424 kbit/s
100% ASK
Modified
Miller coding
®
reader/writer
ISO 14443A Card
Contactless Reader IC
ISO14443A
Contactless Card
MFRC522
Card
© NXP B.V. 2007. All rights reserved.
,
848 kbit/s
100% ASK
Modified
Miller coding
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