STM32F398VE datasheet(40/151 Pages) STMICROELECTRONICS

40 / 151 page

Pinouts and pin description

STM32F398VE

40/151

DocID027227 Rev 2

PB8

I/O

FTf

TIM16_CH1, TIM4_CH3,

TSC_SYNC, I2C1_SCL,

USART3_RX, COMP1_OUT,

CAN_RX, TIM8_CH2,

TIM1_BKIN, EVENTOUT

PB9

I/O

FTf

TIM17_CH1, TIM4_CH4,

I2C1_SDA, IR-OUT,

USART3_TX, COMP2_OUT,

CAN_TX, TIM8_CH3,

EVENTOUT

PE0

I/O

(1)

EVENTOUT, TIM4_ETR,

TIM16_CH1, TIM20_ETR,

USART1_TX, FMC_NBL0

PE1

I/O

(1)

EVENTOUT, TIM17_CH1,

TIM20_CH4, USART1_RX,

FMC_NBL1

VSS

100

VDD

1. Function availability depends on the chosen device.

2. 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 RM0316 reference manual.

3. These GPIOs offer a reduced touch sensing sensitivity. It is thus recommended to use them as sampling capacitor I/O.

Table 12. STM32F398VE pin definitions (continued)

Pin number

Pin name

(function

after reset)

Alternate functions

Additional functions

LQFP100

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