Analog; Digital - Arduino UNO R4 Minima Product Reference Manual

9.1 Analog

Pin Function
1 BOOT
2 IOREF
3 Reset
4 +3V3
5 +5V
6 GND
7 GND
8 VIN
9 A0
10 A1
11 A2
12 A3
13 A4
14 A5

9.2 Digital

Pin Function
1 SCL
2 SDA
3 AREF
4 GND
5 D13/SCK
6 D12/CIPO
7 D11/COPI
8 D10/CS
9 D9
10 D8
11 D7
12 D6
13 D5/CANRX0
14 D4/CANTX0
15 D3
16 D2
17 D1/TX0
18 D0/TX0
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Type Description
MD Mode selection
IOREF Reference for digital logic V - connected to 5V
Reset Reset
Power +3V3 Power Rail
Power +5V Power Rail
Power Ground
Power Ground
Power Voltage Input
Analog Analog input 0 / DAC
Analog Analog input 1 / OPAMP+
Analog Analog input 2 / OPAMP-
Analog Analog input 3 / OPAMPOut
Analog Analog input 4 / I²C Serial Datal (SDA)
Analog Analog input 5 / I²C Serial Clock (SCL)
Type Description
Digital I²C Serial Clock (SCL)
Digital I²C Serial Datal (SDA)
Digital Analog Reference Voltage
Power Ground
Digital GPIO 13 / SPI Clock
Digital GPIO 12 / SPI Controller In Peripheral Out
Digital GPIO 11 (PWM) / SPI Controller Out Peripheral In
Digital GPIO 10 (PWM) / SPI Chip Select
Digital GPIO 9 (PWM~)
Digital GPIO 8
Digital GPIO 7
Digital GPIO 6 (PWM~)
Digital GPIO 5 (PWM~) / CAN Transmitter (TX)
Digital GPIO 4 / CAN Receiver (RX)
Digital GPIO 3 (PWM~)
Digital GPIO 2
Digital GPIO 1 / Serial 0 Transmitter (TX)
Digital GPIO 0 / Serial 0 Receiver (RX)
Arduino® UNO R4 Minima
Arduino® UNO R4 Minima
Modified: 19/06/2023