Board's 26-Pin Header - Arduino Due Product Reference Manual

6.2.2 Board's 26-Pin Header

Pin Function
1 D21/SCL1
2 D20/SDA1
3 AREF
4 GND
5 D13/SCK
6 D12/CIPO
7 D11/COPI
8 D10/CS
9 D9/SDA2
10 D8/SCL2
11 D7
12 D6
13 D5
14 D4
15 D3
16 D2
17 D1/TX0
18 D0/TX0
19 D14/TX3
20 D15/RX3
21 D16/TX2
22 D17/RX2
23 D18/TX1
24 D19/RX1
25 D20/SDA
26 D21/SCL
10 / 27
Type Description
Digital GPIO 21 / I2C 1 Clock
Digital GPIO 20 / I2C 1 Dataline
Digital Analog Reference Voltage
Power Ground
Digital GPIO 13 / SPI Clock (PWM~)
Digital GPIO 12 / SPI Controller In Peripheral Out (PWM~)
Digital GPIO 11 / SPI Controller Out Peripheral In (PWM~)
Digital GPIO 10 / SPI Chip Select (PWM~)
Digital GPIO 9 / I2C 2 Dataline (PWM~)
Digital GPIO 8 / I2C 2 Clockline (PWM~)
Digital GPIO 7 (PWM~)
Digital GPIO 6 (PWM~)
Digital GPIO 5 (PWM~)
Digital GPIO 4 (PWM~)
Digital GPIO 3 (PWM~)
Digital GPIO 2 (PWM~)
Digital GPIO 1 / Serial 0 Transmitter
Digital GPIO 0 / Serial 0 Receiver
Digital GPIO 14 / Serial 3 Transmitter
Digital GPIO 15 / Serial 3 Receiver
Digital GPIO 16 / Serial 2 Transmitter
Digital GPIO 17 / Serial 2 Receiver
Digital GPIO 18 / Serial 1 Transmitter
Digital GPIO 19 / Serial 1 Receiver
Digital GPIO 20 / I2C 0 Dataline
Digital GPIO 21 / I2C 0 Clock
Board's 26-Pin Header pinout
Arduino® Due
Arduino® Due
Modified: 14/06/2024