A000062-datasheet.pdf - 第20页
6.5.6 SPI These pins facilitate communication between the Arduino Due and e xternal SPI devices Pin Function Type Description 1 CIPO Internal Controller In Peripher al Out 2 +5V Internal Power Supply of 5 V 3 SCK Interna…
6.5.5 Board's 26-Pin Header Connector
The 26-pin header connector on the Arduino Due offers a comprehensive set of interfaces and versatile pins crucial
for diverse applications
These pins offer a range of functionalities, including digital input/output, serial communication, PWM (Pulse Width
Modulation) outputs, and I2C (Inter-Integrated Circuit) communication.
Pin Function Type Description
1 D21/SCL1 Digital GPIO 21 / I2C 1 Clock
2 D20/SDA1 Digital GPIO 20 / I2C 1 Dataline
3 AREF Digital Analog Reference Voltage
4 GND Power Ground
5 D13/SCK Digital GPIO 13 / SPI Clock (PWM~)
6 D12/CIPO Digital GPIO 12 / SPI Controller In Peripheral Out (PWM~)
7 D11/COPI Digital GPIO 11 / SPI Controller Out Peripheral In (PWM~)
8 D10/CS Digital GPIO 10 / SPI Chip Select (PWM~)
9 D9/SDA2 Digital GPIO 9 / I2C 2 Dataline (PWM~)
10 D8/SCL2 Digital GPIO 8 / I2C 2 Clockline (PWM~)
11 D7 Digital GPIO 7 (PWM~)
12 D6 Digital GPIO 6 (PWM~)
13 D5 Digital GPIO 5 (PWM~)
14 D4 Digital GPIO 4 (PWM~)
15 D3 Digital GPIO 3 (PWM~)
16 D2 Digital GPIO 2 (PWM~)
17 D1/TX0 Digital GPIO 1 / Serial 0 Transmitter
18 D0/TX0 Digital GPIO 0 / Serial 0 Receiver
19 D14/TX3 Digital GPIO 14 / Serial 3 Transmitter
20 D15/RX3 Digital GPIO 15 / Serial 3 Receiver
21 D16/TX2 Digital GPIO 16 / Serial 2 Transmitter
22 D17/RX2 Digital GPIO 17 / Serial 2 Receiver
23 D18/TX1 Digital GPIO 18 / Serial 1 Transmitter
24 D19/RX1 Digital GPIO 19 / Serial 1 Receiver
25 D20/SDA Digital GPIO 20 / I2C 0 Dataline
26 D21/SCL Digital GPIO 21 / I2C 0 Clock
Board's 26-Pin Header pinout
Arduino® Due
19 / 50 Arduino® Due Modified: 15/09/2026
6.5.6 SPI
These pins facilitate communication between the Arduino Due and external SPI devices
Pin Function Type Description
1 CIPO Internal Controller In Peripheral Out
2 +5V Internal Power Supply of 5 V
3 SCK Internal Serial Clock
4 COPI Internal Controller Out Peripheral In
5 RESET Internal Reset
6 GND Internal Ground
SPI pinout
6.5.7 D22 to D53 on Left and Right Side
These digital pins provide a wide range of GPIO (General Purpose Input/Output) capabilities for interfacing with
external sensors, actuators, and other digital devices in Arduino Due projects.
Pin Function Type Description
1 +5V Power +5V Power Rail
2 D22 Digital GPIO 22
3 D24 Digital GPIO 24
4 D26 Digital GPIO 26
5 D28 Digital GPIO 28
6 D30 Digital GPIO 30
7 D32 Digital GPIO 32
8 D34 Digital GPIO 34
9 D36 Digital GPIO 36
10 D38 Digital GPIO 38
11 D40 Digital GPIO 40
12 D42 Digital GPIO 42
13 D44 Digital GPIO 44
14 D46 Digital GPIO 46
15 D48 Digital GPIO 48
16 D50 Digital GPIO 50
17 D52 Digital GPIO 52
18 GND Power Ground
D22 - D53 LHS pinout
Arduino® Due
20 / 50 Arduino® Due Modified: 15/09/2026
Pin Function Type Description
1 +5V Power +5V Power Rail
2 D23 Digital GPIO 23
3 D25 Digital GPIO 25
4 D27 Digital GPIO 27
5 D29 Digital GPIO 29
6 D31 Digital GPIO 31
7 D33 Digital GPIO 33
8 D35 Digital GPIO 35
9 D37 Digital GPIO 37
10 D39 Digital GPIO 39
11 D41 Digital GPIO 41
12 D43 Digital GPIO 43
13 D45 Digital GPIO 45
14 D47 Digital GPIO 47
15 D49 Digital GPIO 49
16 D51 Digital GPIO 51
17 D53 Digital GPIO 53
18 GND Power Ground
D22 - D53 RHS pinout
Arduino® Due
21 / 50 Arduino® Due Modified: 15/09/2026