STM32F091XB Datasheet, PDF(34/127 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 (34/127 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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Pinouts and pin descriptions

STM32F091xB STM32F091xC

Pin numbers

Table 13. STM32F091xB/xC pin definitions

Pin functions

Pin name

(function upon

reset)

Alternate functions

Additional

functions

B2 1 - - - -

PE2

I/O FT

TSC_G7_IO1, TIM3_ETR

A1 2 - - - -

PE3

I/O FT

TSC_G7_IO2, TIM3_CH1

B1 3 - - - -

PE4

I/O FT

TSC_G7_IO3, TIM3_CH2

C2 4 - - - -

PE5

I/O FT

TSC_G7_IO4, TIM3_CH3

D2 5 - - - -

PE6

I/O FT

TIM3_CH4

WKUP3,

RTC_TAMP3

E2 6 B2 1 B8 1

VBAT

S-

Backup power supply

WKUP2,

C1 7 A2 2 B7 2

PC13

(1)

I/O TC (2)

RTC_TAMP1,

RTC_TS,

RTC_OUT

PC14-

(1)

D1 8 A1 3 C8 3

OSC32_IN I/O TC (2)

(PC14)

OSC32_IN

PC15-

(1)

E1 9 B1 4 C7 4 OSC32_OUT I/O TC (2)

OSC32_OUT

(PC15)

F2 10 - - - -

PF9

I/O FT

TIM15_CH1, USART6_TX

G2 11 - - - -

PF10

I/O FT

TIM15_CH2, USART6_RX

F1 12 C1 5 D8 5

PF0-OSC_IN

(PF0)

I/O FTf

CRS_ SYNC, I2C1_SDA

OSC_IN

13 D1

PF1-OSC_OUT

(PF1)

I/O

FTf

I2C1_SCL

OSC_OUT

H2 14 E1 7 D7 7

NRST

I/O RST

Device reset input / internal reset output

(active low)

H1 15 E3 8 E7 -

PC0

I/O TTa

EVENTOUT,

USART6_TX,

USART7_TX

ADC_IN10

J2 16 E2 9 F8 -

PC1

I/O TTa

EVENTOUT,

USART6_RX,

USART7_RX

ADC_IN11

J3 17 F2 10 D6 -

PC2

I/O TTa

SPI2_MISO, I2S2_MCK,

EVENTOUT, USART8_TX

ADC_IN12

K2 18 G1 11 E6 -

PC3

I/O TTa

SPI2_MOSI, I2S2_SD,

EVENTOUT, USART8_RX

ADC_IN13

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DocID026284 Rev 3

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