STM32F373CC datasheet(40/137 Pages) STMICROELECTRONICS

40 / 137 page

Pinouts and pin description

STM32F373xx

40/137

DocID022691 Rev 7

C5 57 41

PB5

I/O

SPI1_MOSI/I2S1_SD,

SPI3_MOSI/I2S3_SD,

I2C1_SMBAl, USART2_CK,

TIM16_BKIN, TIM3_CH2,

TIM17_CH1, TIM19_ETR

58 42

PB6

I/O

FTf

I2C1_SCL, USART1_TX,

TIM16_CH1N, TIM3_CH3,

TIM4_CH1, TIM19_CH1,

TIM15_CH1, TSC_G5_IO3

59 43

PB7

I/O

FTf

I2C1_SDA, USART1_RX,

TIM17_CH1N, TIM3_CH4,

TIM4_CH2, TIM19_CH2,

TIM15_CH2, TSC_G5_IO4

60 44

BOOT0

Boot memory selection

61 45

PB8

I/O

FTf

SPI2_SCK/I2S2_CK,

I2C1_SCL, USART3_TX,

CAN_RX, CEC, TIM16_CH1,

TIM4_CH3, TIM19_CH3,

COMP1_OUT, TSC_SYNC

62 46

PB9

I/O

FTf

SPI2_NSS/I2S2_WS,

I2C1_SDA, USART3_RX,

CAN_TX, IR_OUT,

TIM17_CH1, TIM4_CH4,

TIM19_CH4, COMP2_OUT

PE0

I/O

(2) USART1_TX, TIM4_ETR

PE1

I/O

(2) USART1_RX

D3 63 47

VSS_1

Ground

100 C4 64 48

VDD_1

Digital power supply

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

(3 mA), the use of GPIO 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)

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

content of the Backup registers which is not reset by the main reset. For details on how to manage these GPIOs, refer to the

Battery backup domain and BKP register description sections in the RM0313 reference manual.

2. When using the small packages (48 and 64 pin packages), the GPIO pins which are not present on these packages, must not

be configured in analog mode.

3. these pins are powered by VDDSD12.

4. these pins are powered by VDDSD3.

Table 11. STM32F373xx pin definitions (continued)

Pin numbers

Pin name

(function after

reset)

type

Pin functions

Alternate function

Additional functions

STM32F373CC Datenblatt(PDF) 40 Page - STMicroelectronics

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