Connectors UM2411
24/61 UM2411 Rev 2
6.5 Arduino™ Uno V3 connectors CN5, CN6, CN8 and CN9
Arduino™ Uno V3 connectors CN5, CN6, CN8 and CN9 are female connectors compatible
with Arduino™ Uno Revision 3 standard. Most of shields designed for Arduino™ Uno V3 fit
to STM32H747I-DISCO board.
Table 9. Arduino™ Uno V3 compatible connectors
Left connectors Right connectors
CN No.
Pin
No.
Pin
Name
MCU
Pin
Function Function
MCU
Pin
Pin
Name
Pin
No.
CN No.
-
I2C4_SCL PD12 D15 10
CN5
Digital
I2C4_SDA PD13 D14 9
AVDD - AREF 8
Ground - GND 7
CN8
Power
1 NC - - SPI5_SCK PK03 D13 6
2 IOREF - 3.3 V Ref SPI5_MISO PJ11 D12 5
3 RESET NRST RESET
TIM1_CH2N,
SPI5_MOSI
PJ10 D11 4
4+3V3 -
3.3 V
(1)
input / output
TIM1_CH1,
SPI5_NSS
PK1 D10 3
5 +5V - 5 V output TIM8_CH2 PJ6 D9 2
6 GND - Ground - PJ5 D8 1
7 GND - Ground -
8 VIN - Power input
(2)
- PJ0 D7 8
CN6
Digital
- TIM8_CH2N PJ7 D6 7
CN9
Analog
1 A0 PF7 ADC3_IN5 TIM3_CH1 PA6 D5 6
2 A1 PF10 ADC12_IN0 - PJ4 D4 5
3 A2 PA0_C ADC12_IN1 TIM13_CH1 PF8 D3 4
4 A3 PA1_C ADC1_IN15 - PJ3 D2 3
5A4
PC2_C
or
PD13
ADC3_IN50
or
I2C4_SDA
(3)
UART8_TX PJ8 D1 2
6A5
PC3_C
or
PD12
ADC3_IN1
or
I2C4_SCL
(3)
UART8_RX PJ9 D0 1
1. The +3V3 on ARD connector Pin4 of CN8 is not a power input for STM32H747I-DISCO board, to simplify power
architecture.
2. The external voltage applied to pin VIN on Pin8 of CN8 must be in the range 6 to 9V at 25°C ambient temperature. If a
higher voltage is applied on the regulator U19, it may overheat and could be damaged.
3. By default, Pin 5 and Pin 6 of CN9 connector are connected to ADC MCU input ports PC2_C and PC3_C respectively,
thanks to configuration of solder bridges: SB6 and SB23 closed, SB7 and SB24 opened. In case it is necessary to connect
I
2
C interface signals on pins 5 and 6 of CN9 instead of ADC inputs, open SB6 and SB23, and close SB7 and SB24.
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