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NXP Semiconductors
PN532 application note
1. Introduction
The PN532 is a highly integrated transmission module for contactless communication at
13.56 MHz including microcontroller functionality based on a 80C51 core with 40 Kbytes
of ROM and 1 Kbyte of RAM.
The PN532 combines a modulation and demodulation concept completely integrated for
different kinds of contactless communication methods and protocols at 13.56 MHz
(particularly Near Field Communication NFC), with an easy-to-use firmware for the
different supported modes and the required host interfaces.
The PN532 includes a switch to power an external SAM connected to S2C interface. It is
controlled by the embedded firmware.
HOST
CONTROLLER
Interface with host controller : SPI or I2C or HSU.
Possibly one or two additional lines (H_REQ, IRQ).
PN532
antenna
RF communication
Fig 1. Simplified system view
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Application note
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Rev. <01.00> — 2006-12-15
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