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PDF PN532 Data sheet ( Hoja de datos )
| Número de pieza | PN532 | |
| Descripción | NFC controller | |
| Fabricantes | Philips | |
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PN532/C1
NFC controller
Rev. 1.2 — 31 March 2011
Short form data sheet
1. Introduction
This document describes the NFC controller PN532. This document is a short form
version; for full specification refer to the product data sheet.
2. General description
The PN532 is a highly integrated transmission module for contactless communication at
13.56 MHZ including micro-controller functionality based on an 80C51 core. The
transmission module utilises an outstanding modulation and demodulation concept
completely integrated for different kinds of passive contactless communication methods
and protocols at 13.56 MHZ.
The PN532 support 4 different operating modes:
• Reader/writer mode supporting ISO 14443A / MIFARE® and FeliCa™ scheme
• ISO 14443B in reader/writer mode only.
• Card interface mode supporting ISO 14443A / MIFARE® and FeliCa™ scheme
• NFCIP-1 mode
Enabled in reader/ writer mode for ISO reader 14443A / MIFARE® and reader/writer mode
for ISO 14443B, the PN532’s internal transmitter part is able to drive a reader/writer
antenna designed to communicate with ISO14443A /MIFARE® and ISO14443B 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 14443A / MIFARE® and ISO 14443B compatible
cards and transponders. The digital part handles the complete ISO14443A framing and
error detection (Parity & CRC).
The PN532 supports MIFARE“ Classic (e.g. MIFARE® Standard) products. The PN532
supports contactless communication using MIFARE® Higher Baudrates up to 424kBaud in
both directions.
Enabled in the reader/ writer mode for FeliCa™, the PN532 transmission module supports
the FeliCa™ communication scheme. The receiver part provides a robust and efficient
implementation of the demodulation and decoding circuitry for FeliCa™ coded signals.
The digital part handles the FeliCa™ framing and error detection like CRC. The PN532
supports contactless communication using FeliCa™ Higher Baudrates up to 424 kbaud in
both directions.
1 page  
Philips Semiconductors
7. Block diagram
PN532/C1
NFC controller
DVDD
REGULATOR
HSU
SPI
FIFO
Manager
RAM
Ports
I2C wake-up
monitoring
UART
80C51
Hostif
SFRif
PCR
RSTPDN
PN532
SVDDswitch
POR
Xramif
sam_switch_en
sam_switch_overload
RAM
ROMif
Timer0/1
Timer2
Intc
ROM
TCB
CL UART
FiFO
TIMER
Mifare Classic Unit
Framing Gen. & Check
Signal Processing
Osc27
AVDD
VMID BG Sensor
ADC
Transmit
Control
RF
Detector
Demod
Antenna
Driver
Fig 1. Block diagram of PN532
9397 750 XXXXX
Short form data sheet
Rev. 1.2 — 31 March 2011
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
5 of 25
5 Page 
Philips Semiconductors
PN532/C1
NFC controller
9.1.3.1 Reader / Writer mode
Generally 3 reader/writer-operating modes are supported. The PN532 can act as a reader
/ writer for ISO14443A / MIFARE®, FeliCa™ and ISO14443B cards.
Battery
HOST
PN532
Reader/Writer
Fig 3. Reader/Writer Mode.
ISO 14443A/B or
Felica Card
Contactless Card
9.1.3.2 ISO14443A Reader / Writer Functionality
The ISO14443A / MIFARE® reader / writer mode is the general reader / writer to card
communication scheme according to the ISO14443A / MIFARE® specification. The
following diagram describes the communication on a physical level.
ISO14443A
Reader (PCD)
PN532
1. PCD to PICC 100 % ASK,
Miller Coded,
Transfer speed 106 to 424 kbit/s
ISO 14443A
Card (PICC)
2. PICC to PCD, Subcarrier Load modulation,
Manchester Coded or BPSK,
Transfer speed 106 to 424 kbit/s
Fig 4. ISO14443A / MIFARE® reader/writer communication diagram.
Table 4: Communication overview for ISO14443A / MIFARE® reader/writer
Communication
direction
Baudrate
MIFARE® / ISO14443A
106kbaud
MIFARE® Higher transfer speed
212 Kbaud
424kBaud
PN532 → card
Modulation on reader
side
100 % ASK
100 % ASK
100 % ASK
bit coding
Modified Miller coding
Modified
Miller coding
Modified Miller coding
Bitlength
128⁄13.56 = 9.44 μs
64⁄13.56 = 9.44μs⁄2
32⁄13.56 = 9.44μs⁄4
Card → PN532
Modulation on card side Subcarrier load modulation subcarrier load
modulation
subcarrier load
modulation
Subcarrier frequency
13.56MHz⁄16
13.56MHz⁄16
13.56MHz⁄16
bit coding
Manchester coding
BPSK
BPSK
The contactless UART, in cooperation with the internal micro-controller of PN532 and the
external host handle the complete MIFARE® / ISO14443 A protocol.
The internal CRC coprocessor calculates the CRC value according to the definitions given
in the ISO 14443A part 3.
9397 750 XXXXX
Short form data sheet
Rev. 1.2 — 31 March 2011
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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