STM32G030C6 datasheet(34/94 Pages) STMICROELECTRONICS

34 / 94 page

Pinouts, pin description and alternate functions

STM32G030x6/x8

34/94

DS12991 Rev 4

20 27 42

PB3

I/O

SPI1_SCK/I2S1_CK,

TIM1_CH2,

USART1_RTS_DE_CK,

EVENTOUT

20 28 43

PB4

I/O

SPI1_MISO/I2S1_MCK,

TIM3_CH1, USART1_CTS,

TIM17_BK, EVENTOUT

8 20 29 44

PB5

I/O

SPI1_MOSI/I2S1_SD,

TIM3_CH2, TIM16_BK,

I2C1_SMBA

WKUP6

8 20 30 45

PB6

I/O

FT_f

USART1_TX, TIM1_CH3,

TIM16_CH1N, SPI2_MISO,

I2C1_SCL, EVENTOUT

PB7

I/O

FT_f

USART1_RX, SPI2_MOSI,

TIM17_CH1N, I2C1_SDA,

EVENTOUT

PB7

I/O

FT_fa

USART1_RX, SPI2_MOSI,

TIM17_CH1N, I2C1_SDA,

EVENTOUT

ADC_IN11

32 47

PB8

I/O

FT_f

SPI2_SCK, TIM16_CH1,

I2C1_SCL, EVENTOUT

PB9

I/O

FT_f

IR_OUT, TIM17_CH1,

SPI2_NSS, I2C1_SDA,

EVENTOUT

1. PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of

current (3 mA), the use of GPIOs PC13 to PC15 in output mode is limited:

- The speed should not exceed 2 MHz with a maximum load of 30 pF

- These GPIOs must not be used as current sources (for example to drive a LED).

2. After an RTC domain power-up, PC13, PC14 and PC15 operate as GPIOs. Their function then depends on the

content of the RTC registers. The RTC registers are not reset upon system reset. For details on how to manage

these GPIOs, refer to the RTC domain and RTC register descriptions in the RM0444 reference manual.

3. As in SO8N device, the PA0, PA1, and PA2 GPIOs are bonded with NRST on the pin 4, low level applied to any of

these GPIOs provokes the device reset. To prevent the risk of spurious resets, keep these GPIOs configured at all

times as analog or digital inputs (as opposed to output or alternate function).

4. Pins PA9 and PA10 can be remapped in place of pins PA11 and PA12 (default mapping), using SYSCFG_CFGR1

5. Upon reset, these pins are configured as SW debug alternate functions, and the internal pull-up on PA13 pin and the

internal pull-down on PA14 pin are activated.

Table 12. Pin assignment and description (continued)

Pin name

(function

upon reset)

Alternate

functions

Additional

functions

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