STMicroelectronics STM32L151CB Manual page 38

Pin descriptions
Pins
46 - - M12 -
47 29 G7 L10 21
48 30 H7 L11 22
49 31 D6 F12 23
50 32 E6 G12 24
51 33 H8 L12 25
52 34 G8 K12 26
53 35 F8 K11 27
54 36 F7 K10 28
55 - - K9 -
56 - - K8 -
57 - - J12 -
58 - - J11 -
59 - - J10 -
60 - - H12 -
61 - - H11 -
62 - - H10 -
63 37 F6 E12 -
64 38 E7 E11 -
65 39 E8 E10 -
66 40 D8 D12 -
67 41 D7 D11 29
68 42 C7 D10 30
38/129
Table 8. STM32L15xx6/8/B pin definitions (continued)
Pin name
PE15 I/O FT
PB10 I/O FT
PB11 I/O FT
V S -
SS_1
V S -
DD_1
PB12 I/O FT
PB13 I/O FT
PB14 I/O FT
PB15 I/O FT
PD8 I/O FT
PD9 I/O FT
PD10 I/O FT
PD11 I/O FT
PD12 I/O FT
PD13 I/O FT
PD14 I/O FT
PD15 I/O FT
PC6 I/O FT
PC7 I/O FT
PC8 I/O FT
PC9 I/O FT
PA8 I/O FT
PA9 I/O FT
DocID17659 Rev 10
STM32L151x6/8/B, STM32L152x6/8/B
Main
(2)
function
(after reset)
PE15
I2C2_SCL/USART3_TX/TIM2_CH3/
PB10
I2C2_SDA/USART3_RX/TIM2_CH4/LCD_SE
PB11
V
SS_1
V
DD_1
SPI2_NSS/I2C2_SMBA/USART3_CK/
PB12 LCD_SEG12/ADC_IN18/COMP1_INP/
SPI2_SCK/USART3_CTS/LCD_SEG13/
PB13
ADC_IN19/COMP1_INP/TIM9_CH1
SPI2_MISO/USART3_RTS/LCD_SEG14/
PB14
ADC_IN20/COMP1_INP/TIM9_CH2
PB15 ADC_IN21/COMP1_INP/TIM11_CH1/
PD8
PD9
PD10
PD11 USART3_CTS/LCD_SEG31
PD12 TIM4_CH1/USART3_RTS/LCD_SEG32
PD13
PD14
PD15
PC6
PC7
PC8
PC9
PA8 USART1_CK/MCO/LCD_COM0
PA9
Alternate functions
SPI1_MOSI
LCD_SEG10
G11
-
-
TIM10_CH1
SPI2_MOSI/LCD_SEG15/
RTC_REFIN
USART3_TX/LCD_SEG28
USART3_RX/LCD_SEG29
USART3_CK/LCD_SEG30
TIM4_CH2/LCD_SEG33
TIM4_CH3/LCD_SEG34
TIM4_CH4/LCD_SEG35
TIM3_CH1/LCD_SEG24
TIM3_CH2/LCD_SEG25
TIM3_CH3/LCD_SEG26
TIM3_CH4/LCD_SEG27
USART1_TX/LCD_COM1