STM32
L
15
1x
C STM3
2L1
52x
C
P
in des
c
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ns
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PC4
-
-
-
-
-
-
-
-
SEG22 TIMx_IC1
EVENT
OUT
PC5
-
-
-
-
-
-
-
-
SEG23 TIMx_IC2
EVENT
OUT
PC6
-
-
TIM3_CH1 -
-
I2S2_MCK
-
-
SEG24 TIMx_IC3
EVENT
OUT
PC7
-
-
TIM3_CH2 -
-
-
I2S3_MCK
-
SEG25 TIMx_IC4
EVENT
OUT
PC8
-
-
TIM3_CH3 -
-
-
-
-
SEG26 TIMx_IC1
EVENT
OUT
PC9
-
-
TIM3_CH4 -
-
-
-
-
SEG27 TIMx_IC2
EVENT
OUT
PC10
-
-
-
-
-
-
SPI3_SCK
I2S3_CK
USART3_TX
COM4/
SEG28/
SEG40
TIMx_IC3
EVENT OUT
PC11
-
-
-
-
-
-
SPI3_MISO USART3_RX
COM5/
SEG29
/SEG41
TIMx_IC4
EVENT OUT
PC12
-
-
-
-
-
-
SPI3_MOSI
I2S3_SD
USART3_CK
COM6/
SEG30/
SEG42
TIMx_IC1 EVENT
OUT
PC13-
WKUP2
-
-
-
-
-
-
-
-
-
TIMx_IC2
EVENT OUT
PC14
OSC32_IN
-
-
-
-
-
-
-
-
-
TIMx_IC3 EVENT
OUT
PC15
OSC32_
OUT
-
-
-
-
-
-
-
-
-
TIMx_IC4 EVENT
OUT
PD0
-
-
-
TIM9_CH1 -
SPI2_NSS
I2S2_WS
-
-
-
TIMx_IC1 EVENT
OUT
PD1
-
-
-
-
-
SPI2 SCK
I2S2_CK
-
-
-
TIMx_IC2 EVENT
OUT
PD2
-
-
TIM3_ETR -
-
-
-
-
COM7/
SEG31/
SEG43
TIMx_IC3 EVENT
OUT
Table 10. Alternate function input/output (continued)
Port
name
Digital alternate function number
AFIO0
AFIO1
AFIO2
AFIO3
AFIO4
AFIO5
AFIO6
AFIO7
.
.
AFIO11
.
.
AFIO14
AFIO15
Alternate function
SYSTEM
TIM2
TIM3/4/5
TIM9/
10/11
I2C1/2
SPI1/2
SPI3
USART1/2/3
LCD
CPRI
SYSTEM