STM32F091VCY6TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F091VCY6TR

ARM®-based 32-bit MCU, up to 256 KB Flash, CAN, 12 timers, ADC, DAC, and comm. interfaces, 2.0 - 3.6V

STMicroelectronics 

Pinouts and pin descriptions

STM32F091xB STM32F091xC

Table 13. STM32F091xB/xC pin definitions (continued)

Pin numbers

Pin functions

Pin name

(function upon

reset)

Alternate functions

Additional

functions

C5 91 C4 57 C5 41

PB5

I/O FT

SPI1_MOSI, I2S1_SD,

I2C1_SMBA,

TIM16_BKIN,

TIM3_CH2,

USART5_CK_RTS

WKUP6

I2C1_SCL, USART1_TX,

B5 92 D3 58 A5 42

PB6

I/O FTf

TIM16_CH1N,

-

TSC_G5_I03

I2C1_SDA, USART1_RX,

B4 93 C3 59 B5 43

PB7

I/O FTf

USART4_CTS,

TIM17_CH1N,

-

TSC_G5_IO4

A4 94 B4 60 C6 44 PF11-BOOT0 I/O FT

-

Boot memory

selection

I2C1_SCL, CEC,

A3 95 B3 61 A6 45

PB8

I/O FTf

TIM16_CH1, TSC_SYNC,

-

CAN_RX

SPI2_NSS, I2S2_WS,

B3 96 A3 62 B6 46

PB9

I/O FTf

I2C1_SDA, IR_OUT,

TIM17_CH1, EVENTOUT,

-

CAN_TX

C3 97 - - - -

PE0

I/O FT

EVENTOUT, TIM16_CH1

-

A2 98 - - - -

PE1

I/O FT

EVENTOUT, TIM17_CH1

-

D3 99 D4 63 A7 47

VSS

S-

Ground

C4 100 E4 64 A8 48

VDD

S-

Digital power supply

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 (e.g. to drive an LED).

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

of the RTC registers which are not reset by the system reset. For details on how to manage these GPIOs, refer to the RTC

domain and RTC register descriptions in the reference manual.

3. PC6, PC7, PC8, PC9, PA8, PA9, PA10, PA11, PA12, PA13, PF6, PA14, PA15, PC10, PC11, PC12, PD0, PD1 and PD2 I/Os

are supplied by VDDIO2

4. After reset, these pins are configured as SWDIO and SWCLK alternate functions, and the internal pull-up on the SWDIO pin

and the internal pull-down on the SWCLK pin are activated.

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DocID026284 Rev 4

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