Datasheet

STM32L15xCC STM32L15xRC STM32L15xUC STM32L15xVC Pin descriptions
DocID022799 Rev 6 48/132
PC8 TIM3_CH3 SEG26
TIMx_IC1_6/
G10IO3
EVENT OUT
PC9 TIM3_CH4 SEG27
TIMx_IC2_6/
G10IO4
EVENT OUT
PC10
SPI3_SCK
I2S3_CK
USART3_TX
COM4/
SEG28/
SEG40
TIMx_IC3_6 EVENT OUT
PC11 SPI3_MISO USART3_RX
COM5/
SEG29
/SEG41
TIMx_IC4_6 EVENT OUT
PC12
SPI3_MOSI 
I2S3_SD
USART3_CK
COM6/
SEG30/
SEG42
TIMx_IC1_7 EVENT OUT
PC13-
WKUP2
WKUP2/
TAMPER1/
TIMESTAMP/
ALARM_OUT/
512Hz
TIMx_IC2_7 EVENT OUT
PC14
OSC32_IN
OSC32_IN TIMx_IC3_7 EVENT OUT
PC15
OSC32_
OUT
OSC32_OUT TIMx_IC4_7 EVENT OUT
PD0 TIM9_CH1
SPI2_NSS
I2S2_WS
TIMx_IC1_8 EVENT OUT
PD1
SPI2 SCK
I2S2_CK
TIMx_IC2_8 EVENT OUT
PD2 TIM3_ETR
COM7/
SEG31/
SEG43
TIMx_IC3_8 EVENT OUT
PD3 SPI2_MISO USART2_CTS TIMx_IC4_8 EVENT OUT
Table 10. Alternate function input/output (continued)
Port
name
Digital alternate function number
AFIO0 AFIO1 AFIO2 AFIO3 AFIO4 AFIO5 AFIO6 AFIO7
.
.
AFIO10 AFIO11
.
.
AFIO14 AFIO15
Alternate function
SYSTEM TIM2 TIM3/4/5
TIM9/
10/11
I2C1/2 SPI1/2 SPI3 USART1/2/3 USB LCD CPRI SYSTEM