ST STM32L4P5AG, User Manual

Page: 21 / 37

7.7
CN12, CN13, CN14, and CN15 ARDUINO
®
Uno V3 connectors
CN12, CN13, CN14, and CN15 ARDUINO
®
Uno V3 connectors are female connectors compatible with
ARDUINO
®
Uno Revision 3 standard. Most of the shields designed for ARDUINO
®
Uno V3 fit the STM32L4P5G-
DK board.
Table 13. ARDUINO
®
Uno V3 compatible connectors pinout
Left connectors Right connectors
CN
number
Pin
number
Pin name
MCU
pin
Function Function
MCU
pin
Pin
name
Pin
number
CN number
-
I2C4_SCL PF14 D15 10
CN12
digital
I2C4_SDA PF15 D14 9
AREF - AVDD 8
Ground - GND 7
CN13
power
1 5V_EXT - 5 V output SPI2_SCK PB13 D13 6
2 IOREF - 3.3 V Ref. SPI2 _MISO PB14 D12 5
3 RESET NRST RESET
TIM1_CH3N ||
SPI2_MOSI
PB15 D11 4
4 +3V3 -
3.3V
(1)
input/
output
TIM5_CH4 ||
SPI2_NSS
PI0 D10 3
5 +5V - 5 V output TIM8_CH4 PI2 D9 2
6 GND - Ground - PD1 D8 1
7 GND - Ground -
8 VIN -
Power input
(2) - PD0 D7 8
CN14
digital
- TIM4_CH4 PD15 D6 7
CN15
analog
1 A0 PC1 ADC12_IN2 TIM4_CH3 PD14 D5 6
2 A1 PA1 ADC12_IN6 - PF13 D4 5
3 A2 PB0 ADC12_IN15 TIM4_CH2 PD13 D3 4
4 A3 PB1 ADC3_IN16 - PF11 D2 3
5 A4
PC4 ||
PF15
ADC3_IN13 ||
I2C4_SDA (3)
USART3_TX PB10 D1 2
6 A5
PC5 ||
PF14
ADC12_IN10 ||
I2C4_SCL
(3)
USART3_RX PB11 D0 1
1. The +3V3 on ARD connector Pin4 of CN13 is not a power input for the STM32L4P5G-DK board, to simplify power
architecture.
2. The external voltage applied to pin VIN on Pin8 of CN13 should be in the range 6 to 9V at 25°C ambient temperature. If a
higher voltage is applied on the regulator U10, it may overheat and be damaged.
3. By default, pin 5 and pin 6 of the CN15 connector are connected to ADC MCU input ports PC4 and PC5 respectively, thanks
to the configuration of solder bridges: SB48 and SB54 ON, and SB47 and SB55 OFF. In case it is necessary to connect the
I
2
C interface signals on pins 5 and 6 of CN15 instead of ADC inputs, the user must put SB48 and SB54 OFF, and SB47 and
SB55 ON.
Before using any ARDUINO
®
Uno V3 shield, it is important to refer to Section 6.2 for a correct configuration of
JP4.
Caution:
The STM32 MCU I/Os are 3.3 V compatible instead of 5 V for ARDUINO
®
Uno V3.
UM2651
CN12, CN13, CN14, and CN15 ARDUINO® Uno V3 connectors
UM2651 - Rev 2
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