Datasheet

Short form data sheet Rev. 1.2 — 31 March 2011 7 of 25

Philips Semiconductors

PN532/C1

NFC controller

P31 31 IO PVDD General purpose IO signal.Can be configured to act either as TX line of the

second serial interface or general purpose IO.

In test mode this signal is used as input and output test signal.

P32_INT0 32 IO PVDD General purpose IO signal. Can be used to generate an HZ state on the

output of the selected interface for the Host communication and to enter

PN532 into powerdown mode without reseting the internal state of PN532.

In test mode this signal is used as input and output test signal.

P33_INT1 33 IO PVDD General purpose IO signal. Can also be used as an interrupt source

In test mode this signal is used as input and output test signal.

P34 34 IO SVDD General purpose IO signal or clk signal for the SAM

SIGOUT 35 O SVDD Contactless communication interface output: delivers a serial data stream

according to NFCIP-1 and output signal for the SAM.

In test mode this signal is used as test signal output.

SIGIN 36 I SVDD Contactless communication interface input: accepts a digital, serial data

stream according to NFCIP-1 and input signal from the SAM.

In test mode this signal is used as test signal input.

SVDD 37 O Output power for SAM power supply. Switched on by Firmware with an

overload detection. Used as a reference voltage for SAM communication.

RSTPDN 38 I PVDD Reset and Power Down: When Low, internal current sources are switched off,

the oscillator is inhibited, and the input pads are disconnected from the

outside world.

With a negative edge on this pin the internal reset phase starts.

DVDD 39 PWR Internal Digital Power Supply

VBAT 40 PWR Main external power supply.

Table 3: PN532 Pin description …continued

Symbol Pin Type Pad Ref

Voltage

Description