STM32F091XB Datasheet, PDF(39/127 Page) STMicroelectronics – ARM-based 32-bit MCU, up to 256 KB Flash, CAN, 12 timers, ADC, DAC & comm. interfaces, 2.0

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STM32F091XB Datasheet, PDF (39/127 Pages) STMicroelectronics – ARM-based 32-bit MCU, up to 256 KB Flash, CAN, 12 timers, ADC, DAC & comm. interfaces, 2.0 - 3.6V

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STM32F091xB STM32F091xC

Pinouts and pin descriptions

Table 13. STM32F091xB/xC pin definitions (continued)

Pin numbers

Pin functions

Pin name

(function upon

reset)

Alternate functions

Additional

functions

(3)

A10 76 A7 49 B3 37

PA14

I/O FT (4) USART2_TX, SWCLK

SPI1_NSS, I2S1_WS,

USART2_RX,

A9 77 A6 50 A2 38

PA15

I/O FT (3)

USART4_RTS,

TIM2_CH1_ETR,

EVENTOUT

B11 78 B7 51 A3 -

PC10

I/O FT (3)

USART3_TX,

USART4_TX

C10 79 B6 52 C4 -

PC11

I/O FT (3)

USART3_RX,

USART4_RX

USART3_CK,

B10 80 C5 53 B4 -

PC12

I/O FT (3)

USART4_CK,

USART5_TX

C9 81 - - - -

PD0

I/O FT (3)

SPI2_NSS, I2S2_WS,

CAN_RX

B9 82 - - - -

PD1

I/O FT (3)

SPI2_SCK, I2S2_CK

CAN_TX

C8 83 B5 54 A4 -

PD2

I/O

(3)

USART3_RTS,

TIM3_ETR, USART5_RX

B8 84 - - - -

PD3

I/O FT

SPI2_MISO, I2S2_MCK,

USART2_CTS

B7 85 - - - -

PD4

I/O FT

SPI2_MOSI, I2S2_SD,

USART2_RTS

A6 86 - - - -

PD5

I/O FT

USART2_TX

B6 87 - - - -

PD6

I/O FT

USART2_RX

A5 88 - - - -

PD7

I/O FT

USART2_CK

SPI1_SCK, I2S1_CK,

A8 89 A5 55 D4 39

PB3

I/O FT

TIM2_CH2, TSC_G5_IO1,

EVENTOUT, USART5_TX

SPI1_MISO, I2S1_MCK,

A7 90 A4 56 D5 40

PB4

I/O FT

TIM17_BKIN, TIM3_CH1,

TSC_G5_IO2,

EVENTOUT, USART5_RX

DocID026284 Rev 3

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