Datasheet

DocID17659 Rev 9 37/131
STM32L151x6/8/B, STM32L152x6/8/B Pin descriptions
47
22 13 H1 M1 9 V
DDA
S- V
DDA
-
23 14 G2 L2 10 PA0-WKUP1 I/O FT PA0
WKUP1/USART2_CTS/ADC_IN0/
TIM2_CH1_ETR/COMP1_INP
24 15 H2 M2 11 PA1 I/O FT PA1
USART2_RTS/ADC_IN1/TIM2_CH2/
LCD_SEG0/COMP1_INP
25 16 F3 K3 12 PA2 I/O FT PA2
USART2_TX/ADC_IN2/TIM2_CH3/
TIM9_CH1/LCD_SEG1/COMP1_INP
26 17 G3 L3 13 PA3 I/O TC PA3
USART2_RX/ADC_IN3/TIM2_CH4/
TIM9_CH2/LCD_SEG2/COMP1_INP
27 18 C2 E3 - V
SS_4
S- V
SS_4
-
28 19 D2 H3 - V
DD_4
S- V
DD_4
-
29 20 H3 M3 14 PA4 I/O TC PA4
SPI1_NSS/USART2_CK/
ADC_IN4/DAC_OUT1/COMP1_INP
30 21 F4 K4 15 PA5 I/O TC PA5
SPI1_SCK/ADC_IN5/
DAC_OUT2/TIM2_CH1_ETR/COMP1_INP
31 22 G4 L4 16 PA6 I/O FT PA6
SPI1_MISO/ADC_IN6/TIM3_CH1/
LCD_SEG3/TIM10_CH1/COMP1_INP
32 23 H4 M4 17 PA7 I/O FT PA7
SPI1_MOSI/ADC_IN7/TIM3_CH2/
LCD_SEG4/TIM11_CH1/COMP1_INP
33 24 H5 K5 - PC4 I/O FT PC4 ADC_IN14/LCD_SEG22/COMP1_INP
34 25 H6 L5 - PC5 I/O FT PC5 ADC_IN15/LCD_SEG23/COMP1_INP
35 26 F5 M5 18 PB0 I/O TC PB0
ADC_IN8/TIM3_CH3/LCD_SEG5/
COMP1_INP/VREF_OUT
36 27 G5 M6 19 PB1 I/O FT PB1
ADC_IN9/TIM3_CH4/LCD_SEG6/
COMP1_INP/VREF_OUT
37 28 G6 L6 20 PB2 I/O FT PB2/BOOT1 -
38 - - M7 - PE7 I/O TC PE7 ADC_IN22/COMP1_INP
39 - - L7 - PE8 I/O TC PE8 ADC_IN23/COMP1_INP
40 - - M8 - PE9 I/O TC PE9 ADC_IN24/TIM2_CH1_ETR/COMP1_INP
Table 8. STM32L15xxx pin definitions (continued)
Pins
Pin name
Pin type
(1)
I/O structure
Main
function
(2)
(after reset)
Alternate functions
LQFP100
LQFP64
TFBGA64
UFBGA100
LQFP48 or UFQFPN48