MFRC52201HN1/TRAYB NXP [NXP Semiconductors], MFRC52201HN1/TRAYB Datasheet - Page 7

• Manufacturer Part Number: MFRC52201HN1/TRAYB
• Description: Contactless reader IC
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
8. Functional description
Table 4.
MFRC522_33
Product data sheet
PUBLIC
Communication
direction
Reader to card (send
data from the
MFRC522 to a card)
Card to reader
(MFRC522 receives
data from a card)
Communication overview for ISO/IEC 14443 A/MIFARE reader/writer
The MFRC522 transmission module supports the Read/Write mode for
ISO/IEC 14443 A/MIFARE using various transfer speeds and modulation protocols.
The physical level communication is shown in
The physical parameters are described in
The MFRC522’s contactless UART and dedicated external host must manage the
complete ISO/IEC 14443 A/MIFARE protocol.
framing according to ISO/IEC 14443 A/MIFARE.
Signal type
reader side
modulation
bit encoding
bit length
card side
modulation
subcarrier
frequency
bit encoding
Fig 4.
Fig 5.
(1) Reader to card 100 % ASK, Miller encoded, transfer speed 106 kBd to 848 kBd.
(2) Card to reader subcarrier load modulation, Manchester encoded or BPSK, transfer speed 106 kBd
MFRC522 Read/Write mode
to 848 kBd.
ISO/IEC 14443 A/MIFARE Read/Write mode communication diagram
MICROCONTROLLER
Transfer speed
106 kBd
100 % ASK
modified Miller
encoding
128 (13.56 s)
subcarrier load
modulation
13.56 MHz/16
Manchester
encoding
BATTERY
ISO/IEC 14443 A
Rev. 3 — 26 October 2009
MFRC522
reader/writer
READER
112133
MFRC522
212 kBd
100 % ASK
modified Miller
encoding
64 (13.56 s)
subcarrier load
modulation
13.56 MHz/16
BPSK
Table
(1)
(2)
Figure
Figure 6
4.
ISO/IEC 14443 A CARD
5.
424 kBd
100 % ASK
modified Miller
encoding
32 (13.56 s)
subcarrier load
modulation
13.56 MHz/16
BPSK
shows the data coding and
ISO/IEC 14443 A CARD
contactless card
001aak584
Contactless reader IC
MFRC522
© NXP B.V. 2009. All rights reserved.
001aak583
848 kBd
100 % ASK
modified Miller
encoding
16 (13.56 s)
subcarrier load
modulation
13.56 MHz/16
BPSK
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