Arduino DUE Microcontroller Board

The Arduino Due is a 32-bit microcontroller board with an ARM Cortex-M3 processor, featuring 54 I/O pins, 12 analog inputs, USB-OTG, and runs at 3.3V.

VINpower-header
external power input barrel/header rail shown on Arduino Due pinout
Type · powerVoltage · 6-20 V power input per official pinout
+5Vpower-header
5 V power output rail on power header and ICSP
Type · powerVoltage · 5 V
+3V3power-header
3.3 V power output rail; Due I/O standard is 3.3 V
Type · powerVoltage · 3.3 V
GNDmultiple
ground pins on power, digital, ICSP, and USB sections
Type · groundVoltage · 0 V
IOREFpower-header
I/O reference voltage pin for shield compatibility
Type · powerVoltage · 3.3 V on Arduino Due
RESETpower-header
reset line on power/header section
Type · reset
AREFanalog-header
analog reference pin
Type · analog reference
D0 / RX0digital-header
USART serial receive 0, SAM3X PA8 on official pinout
Type · uartVoltage · 3.3 V logic
D1 / TX0digital-header
USART serial transmit 0, SAM3X PA9 on official pinout
Type · uartVoltage · 3.3 V logic
D14 / TX3digital-header
USART serial transmit 3, SAM3X PD4 on official pinout
Type · uartVoltage · 3.3 V logic
D15 / RX3digital-header
USART serial receive 3, SAM3X PD5 on official pinout
Type · uartVoltage · 3.3 V logic
D16 / TX2digital-header
USART serial transmit 2, SAM3X PA13 on official pinout
Type · uartVoltage · 3.3 V logic
D17 / RX2digital-header
USART serial receive 2, SAM3X PA12 on official pinout
Type · uartVoltage · 3.3 V logic
D18 / TX1digital-header
USART serial transmit 1, SAM3X PA11 on official pinout
Type · uartVoltage · 3.3 V logic
D19 / RX1digital-header
USART serial receive 1, SAM3X PA10 on official pinout
Type · uartVoltage · 3.3 V logic
D20 / SDAdigital-header
I2C serial data, SAM3X PB12 on official pinout
Type · i2cVoltage · 3.3 V logic
D21 / SCLdigital-header
I2C serial clock, SAM3X PB13 on official pinout
Type · i2cVoltage · 3.3 V logic
D22-D53digital-header
digital GPIO header bank mapped to SAM3X pins on official pinout
Type · digital ioVoltage · 3.3 V logic; official pinout notes max current per I/O lines is 130 mA
D13 / LED_BUILTINdigital-header
digital GPIO connected to built-in LED, SAM3X PB27 on official pinout
Type · digital ioVoltage · 3.3 V logic
A0 / D54analog-header
ADC channel 0, SAM3X PA16 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A1 / D55analog-header
ADC channel 1, SAM3X PA24 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A2 / D56analog-header
ADC channel 2, SAM3X PA23 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A3 / D57analog-header
ADC channel 3, SAM3X PA22 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A4 / D58analog-header
ADC channel 4, SAM3X PA6 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A5 / D59analog-header
ADC channel 5, SAM3X PA4 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A6 / D60analog-header
ADC channel 6, SAM3X PA3 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A7 / D61analog-header
ADC channel 7, SAM3X PA2 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A8 / D62analog-header
ADC channel 8, SAM3X PB17 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A9 / D63analog-header
ADC channel 9, SAM3X PB18 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A10 / D64analog-header
ADC channel 10, SAM3X PB19 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
A11 / D65analog-header
ADC channel 11, SAM3X PB20 on official pinout
Type · analog inputVoltage · 3.3 V max analogue input domain
DAC1 / D67analog-header
DAC channel 1, SAM3X PB16 on official pinout
Type · analog outputVoltage · 3.3 V analogue output domain
DAC2 / D66analog-header
DAC channel 0, SAM3X PB15 on official pinout
Type · analog outputVoltage · 3.3 V analogue output domain
CANRX / D68CAN-header
CAN receive 0, SAM3X PA1 on official pinout
Type · canVoltage · 3.3 V logic
CANTX / D69CAN-header
CAN transmit 0, SAM3X PA0 on official pinout
Type · canVoltage · 3.3 V logic
ICSP CIPOICSP
SPI CIPO/MISO on ICSP header; official note says CIPO/COPI previously referred to as MISO/MOSI
Type · spiVoltage · 3.3 V logic
ICSP COPIICSP
SPI COPI/MOSI on ICSP header; official note says CIPO/COPI previously referred to as MISO/MOSI
Type · spiVoltage · 3.3 V logic
ICSP SCKICSP
SPI clock on ICSP header
Type · spiVoltage · 3.3 V logic
USB D+USB
USB differential data plus on native USB/USB1 section
Type · usb
USB D-USB
USB differential data minus on native USB/USB1 section
Type · usb

Pin	Position	Type	Function	Voltage
VIN	power-header	power	external power input barrel/header rail shown on Arduino Due pinout	6-20 V power input per official pinout
+5V	power-header	power	5 V power output rail on power header and ICSP	5 V
+3V3	power-header	power	3.3 V power output rail; Due I/O standard is 3.3 V	3.3 V
GND	multiple	ground	ground pins on power, digital, ICSP, and USB sections	0 V
IOREF	power-header	power	I/O reference voltage pin for shield compatibility	3.3 V on Arduino Due
RESET	power-header	reset	reset line on power/header section
AREF	analog-header	analog reference	analog reference pin
D0 / RX0	digital-header	uart	USART serial receive 0, SAM3X PA8 on official pinout	3.3 V logic
D1 / TX0	digital-header	uart	USART serial transmit 0, SAM3X PA9 on official pinout	3.3 V logic
D14 / TX3	digital-header	uart	USART serial transmit 3, SAM3X PD4 on official pinout	3.3 V logic
D15 / RX3	digital-header	uart	USART serial receive 3, SAM3X PD5 on official pinout	3.3 V logic
D16 / TX2	digital-header	uart	USART serial transmit 2, SAM3X PA13 on official pinout	3.3 V logic
D17 / RX2	digital-header	uart	USART serial receive 2, SAM3X PA12 on official pinout	3.3 V logic
D18 / TX1	digital-header	uart	USART serial transmit 1, SAM3X PA11 on official pinout	3.3 V logic
D19 / RX1	digital-header	uart	USART serial receive 1, SAM3X PA10 on official pinout	3.3 V logic
D20 / SDA	digital-header	i2c	I2C serial data, SAM3X PB12 on official pinout	3.3 V logic
D21 / SCL	digital-header	i2c	I2C serial clock, SAM3X PB13 on official pinout	3.3 V logic
D22-D53	digital-header	digital io	digital GPIO header bank mapped to SAM3X pins on official pinout	3.3 V logic; official pinout notes max current per I/O lines is 130 mA
D13 / LED_BUILTIN	digital-header	digital io	digital GPIO connected to built-in LED, SAM3X PB27 on official pinout	3.3 V logic
A0 / D54	analog-header	analog input	ADC channel 0, SAM3X PA16 on official pinout	3.3 V max analogue input domain
A1 / D55	analog-header	analog input	ADC channel 1, SAM3X PA24 on official pinout	3.3 V max analogue input domain
A2 / D56	analog-header	analog input	ADC channel 2, SAM3X PA23 on official pinout	3.3 V max analogue input domain
A3 / D57	analog-header	analog input	ADC channel 3, SAM3X PA22 on official pinout	3.3 V max analogue input domain
A4 / D58	analog-header	analog input	ADC channel 4, SAM3X PA6 on official pinout	3.3 V max analogue input domain
A5 / D59	analog-header	analog input	ADC channel 5, SAM3X PA4 on official pinout	3.3 V max analogue input domain
A6 / D60	analog-header	analog input	ADC channel 6, SAM3X PA3 on official pinout	3.3 V max analogue input domain
A7 / D61	analog-header	analog input	ADC channel 7, SAM3X PA2 on official pinout	3.3 V max analogue input domain
A8 / D62	analog-header	analog input	ADC channel 8, SAM3X PB17 on official pinout	3.3 V max analogue input domain
A9 / D63	analog-header	analog input	ADC channel 9, SAM3X PB18 on official pinout	3.3 V max analogue input domain
A10 / D64	analog-header	analog input	ADC channel 10, SAM3X PB19 on official pinout	3.3 V max analogue input domain
A11 / D65	analog-header	analog input	ADC channel 11, SAM3X PB20 on official pinout	3.3 V max analogue input domain
DAC1 / D67	analog-header	analog output	DAC channel 1, SAM3X PB16 on official pinout	3.3 V analogue output domain
DAC2 / D66	analog-header	analog output	DAC channel 0, SAM3X PB15 on official pinout	3.3 V analogue output domain
CANRX / D68	CAN-header	can	CAN receive 0, SAM3X PA1 on official pinout	3.3 V logic
CANTX / D69	CAN-header	can	CAN transmit 0, SAM3X PA0 on official pinout	3.3 V logic
ICSP CIPO	ICSP	spi	SPI CIPO/MISO on ICSP header; official note says CIPO/COPI previously referred to as MISO/MOSI	3.3 V logic
ICSP COPI	ICSP	spi	SPI COPI/MOSI on ICSP header; official note says CIPO/COPI previously referred to as MISO/MOSI	3.3 V logic
ICSP SCK	ICSP	spi	SPI clock on ICSP header	3.3 V logic
USB D+	USB	usb	USB differential data plus on native USB/USB1 section
USB D-	USB	usb	USB differential data minus on native USB/USB1 section

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