Pin descriptions
STM32L151xC/C-A STM32L152xC/C-A
42/133
DocID026119 Rev 5
75
K11 53 35 F2
PB14
I/O
FT
PB14
TIM9_CH2/SPI2_MISO/
USART3_RTS/
LCD_SEG14
ADC_IN20/
COMP1_INP
76
K10 54 36 F1
PB15
I/O
FT
PB15
TIM11_CH1/SPI2_MOSI/
I2S2_SD/
LCD_SEG15
ADC_IN21/
COMP1_INP/
RTC_REFIN
77
K9
55
-
-
PD8
I/O
FT
PD8
USART3_TX/LCD_SEG28
-
78
K8
56
-
-
PD9
I/O
FT
PD9
USART3_RX/LCD_SEG29
-
79
J12
57
-
-
PD10
I/O
FT
PD10
USART3_CK/LCD_SEG30
-
80
J11
58
-
-
PD11
I/O
FT
PD11
USART3_CTS/LCD_SEG31
-
81
J10
59
-
-
PD12
I/O
FT
PD12
TIM4_CH1/USART3_RTS/
LCD_SEG32
-
82 H12 60
-
-
PD13
I/O
FT
PD13
TIM4_CH2/LCD_SEG33
-
83
-
-
-
-
V
SS_8
S
-
V
SS_8
-
-
84
-
-
-
-
V
DD_8
S
-
V
DD_8
-
-
85
H11 61
-
-
PD14
I/O
FT
PD14
TIM4_CH3/LCD_SEG34
-
86 H10 62
-
-
PD15
I/O
FT
PD15
TIM4_CH4/LCD_SEG35 -
87 G10
-
-
-
PG2
I/O
FT
PG2
-
ADC_IN10b/
COMP1_INP
88
F9
-
-
-
PG3
I/O
FT
PG3
-
ADC_IN11b/
COMP1_INP
89
F10
-
-
-
PG4
I/O
FT
PG4
-
ADC_IN12b/
COMP1_INP
90
E9
-
-
-
PG5
I/O
FT
PG5
-
-
91
-
-
-
-
PG6
I/O
FT
PG6
-
-
92
-
-
-
-
PG7
I/O
FT
PG7
-
-
93
-
-
-
-
PG8
I/O
FT
PG8
-
-
94
F6
-
-
-
V
SS_9
S
V
SS_9
-
-
95
G6
-
-
-
V
DD_9
S
V
DD_9
-
-
96
E12 63 37 E1
PC6
I/O
FT
PC6
TIM3_CH1/I2S2_MCK/
LCD_SEG24
-
Table 8. STM32L151xC/C-A and STM32L152xC/C-A pin definitions (continued)
Pins
Pin name
Pin T
ype
(1
)
I / O stru
ctu
re
Main
function
(2)
(after reset)
Pin functions
LQ
FP14
4
UFBGA
132
LQ
FP10
0
LQ
FP6
4
WLC
S
P6
4
Alternate functions
Additional
functions