DocID17659 Rev 10
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STM32L151x6/8/B, STM32L152x6/8/B
Pin descriptions
46
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
41
-
-
L8
-
PE10
I/O
TC
PE10
ADC_IN25/TIM2_CH2/COMP1_INP
42
-
-
M9
-
PE11
I/O
FT
PE11
TIM2_CH3
43
-
-
L9
-
PE12
I/O
FT
PE12
TIM2_CH4/SPI1_NSS
44
-
-
M10
-
PE13
I/O
FT
PE13
SPI1_SCK
45
-
-
M11
-
PE14
I/O
FT
PE14
SPI1_MISO
Table 8. STM32L15xx6/8/B pin definitions (continued)
Pins
Pin name
P
in ty
pe
(1)
I/O str
u
ctu
re
Main
function
(2)
(after reset)
Alternate functions
LQ
FP1
00
LQ
FP6
4
TFBGA64
UFBGA1
00
LQ
FP4
8 or
UF
QF
PN48