ST STM32 Nucleo-32 User Manual

UM1956 Rev 5 29/37
UM1956 Hardware layout and configuration
36
Table 16. Arduino Nano connectors on NUCLEO-L432KC
Connector Pin number Pin name STM32 pin Function
Left connector
CN3
1 D1 PA9 USART1_TX
2 D0 PA10 USART1_RX
3 RESET NRST RESET
4 GND - Ground
5 D2 PA12 -
6 D3 PB0 TIM1_CH2N
(1)
1. D3, D5 and D6 PWM on inverted channel.
7 D4
(2)
2. Limitations on A4 and A5, D4 and D5, related to I
2
C configuration, are explained in Section 6.10: Solder
bridges according to SB16/SB18 setting.
PB7
8 D5
(2)
PB6 TIM16_CH1N
(1)
9 D6 PB1 TIM1_CH3N
(1)
10 D7
(3)
3. D7/D8 shared with OSC32_IN/OSC32_OUT.
PC14 -
11 D8
(3)
PC15 -
12 D9 PA8 TIM1_CH1
13 D10 PA11 SPI_CS
(4)
|| TIM1_CH4
4. SPI_CS is made by GPIO.
14 D11 PB5 SPI1_MOSI || TIM
(5)
5. No PWM on D11.
15 D12 PB4 SPI1_MISO
Right connector
CN4
1 VIN - Power input
2 GND - Ground
3 RESET NRST RESET
4 +5V - 5 V input/output
5 A7 PA2 ADC12_IN7
(6)
6. PA2 exclusive with VCP_TX.
6 A6 PA7 ADC12_IN12
7 A5
(2)
PA6 ADC12_IN11 || I2C1_SCL
8 A4
(2)
PA5 ADC12_IN10 || I2C1_SDA
9 A3 PA4
ADC12_IN9
10 A2 PA3 ADC12_IN8
11 A1 PA1 ADC12_IN6
12 A0 PA0 ADC12_IN5
13 AREF - AVDD
14 +3V3 - 3.3 V input/output
15 D13 PB3 SPI1_SCK

ST STM32 Nucleo-32 Specifications

General

Microcontroller	STM32
Pin Count	32
Connectivity	USB
Debugging	ST-LINK/V2-1
Core	ARM Cortex-M
Operating Voltage	3.3V
Power Supply	USB or External Source
Clock Speed	Varies by specific STM32 MCU
Flash Memory	Varies by specific STM32 MCU
SRAM	Varies by specific STM32 MCU
GPIO Pins	Varies by specific STM32 MCU
ADC	Varies by specific STM32 MCU
DAC	Varies by specific STM32 MCU
Communication Interfaces	I2C, SPI, USART, USB
Expansion Connectors	Arduino Nano connectivity
Operating Temperature	Varies by specific STM32 MCU