Datasheet

Pinouts and pin description STM32F401xD STM32F401xE
45/135 DocID025644 Rev 3
Table 9. Alternate function mapping
Port
AF00 AF01 AF02 AF03 AF04 AF05 AF06 AF07 AF08 AF09 AF10 AF11 AF12 AF13 AF14 AF15
SYS_AF TIM1/TIM2
TIM3/
TIM4/ TIM5
TIM9/
TIM10/
TIM11
I2C1/I2C2/
I2C3
SPI1/SPI2/
I2S2/SPI3/
I2S3/SPI4
SPI2/I2S2/ SPI3/ I2S3
SPI3/I2S3/
USART1/
USART2
USART6
I2C2/
I2C3
OTG1_FS SDIO
Port A
PA0 -
TIM2_CH1/
TIM2_ETR
TIM5_CH1 - - - -
USART2_
CTS
-- -----
EVENT
OUT
PA1 - TIM2_CH2 TIM5_CH2 - - - -
USART2_
RTS
-- -----
EVENT
OUT
PA2 - TIM2_CH3 TIM5_CH3 TIM9_CH1 - - -
USART2_
TX
-- -----
EVENT
OUT
PA3 - TIM2_CH4 TIM5_CH4 TIM9_CH2 - -
USART2_
RX
-- -----
EVENT
OUT
PA4 - - - - - SPI1_NSS
SPI3_NSS/
I2S3_WS
USART2_
CK
-- -----
EVENT
OUT
PA5 -
TIM2_CH1/
TIM2_ETR
---SPI1_SCK- --------
EVENT
OUT
PA6 - TIM1_BKIN TIM3_CH1 - -
SPI1_
MISO
---------
EVENT
OUT
PA7 - TIM1_CH1N TIM3_CH2 - -
SPI1_
MOSI
------
- - - EVENT
OUT
PA8 MCO_1 TIM1_CH1 - - I2C3_SCL - -
USART1_
CK
--
OTG_FS_
SOF
-
- - - EVENT
OUT
PA9 - TIM1_CH2 - -
I2C3_
SMBA
--
USART1_
TX
--
OTG_FS_
VBUS
-----
EVENT
OUT
PA10 - TIM1_CH3 - - - - -
USART1_
RX
--
OTG_FS_I
D
----
EVENT
OUT
PA11 - TIM1_CH4 - - - - -
USART1_
CTS
USART6_
TX
-
OTG_FS_
DM
----
EVENT
OUT
PA12 - TIM1_ETR - - - - -
USART1_
RTS
USART6_
RX
-
OTG_FS_
DP
----
EVENT
OUT
PA13
JTMS_
SWDIO
----- - --------
EVENT
OUT
PA14
JTCK_
SWCLK
----- - --------
EVENT
OUT
PA15 JTDI
TIM2_CH1/
TIM2_ETR
---SPI1_NSS
SPI3_NSS/
I2S3_WS
--- -----
EVENT
OUT
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