Pin
de
sc
rip
tions
STM3
2L1
5
1x
C/C-
A
STM3
2L1
52x
C/C-
A
4
8/1
Do
cID0
261
1
9 Rev 5
PB11
-
TIM2_CH4 -
-
I2C2_SDA
-
-
USART3_RX
-
SEG11
-
-
EVENT
OUT
PB12
-
-
-
TIM10_CH1 I2C2_SMBA
SPI2_NSS
I2S2_WS
-
USART3_CK -
SEG12 -
-
EVENT
OUT
PB13
-
-
-
TIM9_CH1 -
SPI2_SCK
I2S2_CK
-
USART3_CTS -
SEG13 -
-
EVENT
OUT
PB14
-
-
-
TIM9_CH2 -
SPI2_MISO
-
USART3_RTS -
SEG14 -
-
EVENT
OUT
PB15
-
-
-
TIM11_CH1 -
SPI2_MOSI
I2S2_SD
-
-
-
SEG15
-
-
EVENT
OUT
PC0
-
-
-
-
-
-
-
-
SEG18 -
TIMx_IC1
EVENT
OUT
PC1
-
-
-
-
-
-
-
-
-
SEG19 -
TIMx_IC2
EVENT
OUT
PC2
-
-
-
-
-
-
-
-
-
SEG20 -
TIMx_IC3
EVENT
OUT
PC3
-
-
-
-
-
-
-
-
-
SEG21 -
TIMx_IC4
EVENT
OUT
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
Table 9. Alternate function input/output (continued)
Port name
Digital alternate function number
AFIO0
AFIO1
AFIO2
AFIO3
AFIO4
AFIO5
AFIO6
AFIO7
AFIO8 .. AFIO11 AFIO12 ..
AFIO14
AFIO15
Alternate function
SYSTEM
TIM2
TIM3/4/5
TIM9/
10/11
I2C1/2
SPI1/2
SPI3
USART1/2/3
-
LCD
-
CPRI
SYSTEM