STM32F091CB datasheet(34/127 Pages) STMICROELECTRONICS

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Pinouts and pin descriptions

STM32F091xB STM32F091xC

34/127

DocID026284 Rev 3

Table 13. STM32F091xB/xC pin definitions

Pin numbers

Pin name

(function upon

reset)

Pin functions

Alternate functions

Additional

functions

PE2

I/O

TSC_G7_IO1, TIM3_ETR

PE3

I/O

TSC_G7_IO2, TIM3_CH1

PE4

I/O

TSC_G7_IO3, TIM3_CH2

PE5

I/O

TSC_G7_IO4, TIM3_CH3

PE6

I/O

TIM3_CH4

WKUP3,

RTC_TAMP3

VBAT

Backup power supply

PC13

I/O

(1)

(2)

WKUP2,

RTC_TAMP1,

RTC_TS,

RTC_OUT

PC14-

OSC32_IN

(PC14)

I/O

(1)

(2)

OSC32_IN

PC15-

OSC32_OUT

(PC15)

I/O

(1)

(2)

OSC32_OUT

PF9

I/O

TIM15_CH1, USART6_TX

PF10

I/O

TIM15_CH2, USART6_RX

5D85

PF0-OSC_IN

(PF0)

I/O

FTf

CRS_ SYNC, I2C1_SDA

OSC_IN

6E86

PF1-OSC_OUT

(PF1)

I/O

FTf

I2C1_SCL

OSC_OUT

NRST

I/O

RST

Device reset input / internal reset output

(active low)

PC0

I/O

TTa

EVENTOUT,

USART6_TX,

USART7_TX

ADC_IN10

PC1

I/O

TTa

EVENTOUT,

USART6_RX,

USART7_RX

ADC_IN11

PC2

I/O

TTa

SPI2_MISO, I2S2_MCK,

EVENTOUT, USART8_TX

ADC_IN12

PC3

I/O

TTa

SPI2_MOSI, I2S2_SD,

EVENTOUT, USART8_RX

ADC_IN13

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