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Hardware layout and configuration UM1724

40/55 DocID025833 Rev 4

1. Please refer to Table 9: Solder bridges for details.

Table 15. Arduino connectors on NUCLEO-L053R8

Connect

or No.

Pin No. Pin name MCU pin Function

Left connectors

CN6

power

1NC - -

2 IOREF - 3.3V Ref

3 RESET NRST RESET

4 +3V3 - 3.3V input/output

5 +5V - 5V output

6 GND - Ground

7 GND - Ground

8 VIN - Power input

CN8

analog

1 A0 PA0 ADC_IN0

2 A1 PA1 ADC_IN1

3 A2 PA4 ADC_IN4

4A3 PB0 ADC_IN8

5 A4 PC1 or PB9

(1)

ADC_IN11 (PC1) or I2C1_SDA (PB9)

6 A5 PC0 or PB8

(1)

ADC_IN10 (PC0) or I2C1_SCL (PB8)

Right connectors

CN5

digital

10 D15 PB8 I2C1_SCL

9 D14 PB9 I2C1_SDA

8 AREF - AVDD

7 GND - Ground

6 D13 PA5 SPI1_SCK

5 D12 PA6 SPI1_MISO

4 D11 PA7 TIM12_CH2 or SPI1_MOSI

3 D10 PB6 SPI1_CS

2 D9 PC7 TIM12_CH2

1D8 PA9 -

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ST STM32 NUCLEO-F030R8 Specifications

General

Microcontroller	STM32F030R8
Core	ARM Cortex-M0
Flash Memory	64 KB
SRAM	8 KB
Clock Speed	48 MHz
GPIO Pins	51
Package	LQFP64
On-board Debugger	ST-LINK/V2-1
Operating Voltage	2.0 V to 3.6 V
ADC	12-bit
Communication Interfaces	I2C, SPI, USART
Timers	6 (1x 16-bit advanced, 5x 16-bit general-purpose)