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STM32L151xC/C-A STM32L152xC/C-A
Pin descriptions
54
Notes
Unless otherwise specified by a note, all I/Os are set as floating inputs during
and after reset
Pin
functions
Alternate
functions
Functions selected through GPIOx_AFR registers
Additional
functions
Functions directly selected/enabled through peripheral registers
Table 7. Legend/abbreviations used in the pinout table (continued)
Name
Abbreviation
Definition
Table 8. STM32L151xC/C-A and STM32L152xC/C-A pin definitions
Pins
Pin name
Pi
n T
ype
(1
)
I / O
s
tr
u
c
tu
re
Main
function
(2)
(after reset)
Pin functions
LQ
FP1
44
UFBGA132
LQ
FP1
00
LQF
P
64
WLCSP64
Alternate functions
Additional
functions
1
B2
1
-
-
PE2
I/O
FT
PE2
TIM3_ETR/LCD_SEG38/
TRACECLK
-
2
A1
2
-
-
PE3
I/O
FT
PE3
TIM3_CH1/LCD_SEG39/
TRACED0
-
3
B1
3
-
-
PE4
I/O
FT
PE4
TIM3_CH2/TRACED1 -
4
C2
4
-
-
PE5
I/O
FT
PE5
TIM9_CH1/TRACED2
-
5
D2
5
-
-
PE6-
WKUP3
I/O
FT
PE6
TIM9_CH2/TRACED3
WKUP3/
RTC_TAMP3
6
E2
6
1
C6
V
LCD
(3)
S
-
V
LCD
-
-
7
C1
7
2
C8
PC13-
WKUP2
I/O
FT
PC13
-
WKUP2/
RTC_TAMP1/
RTC_TS/
RTC_OUT
8
D1
8
3
B8
PC14-
OSC32_IN
(4)
I/O
TC
PC14
-
OSC32_IN
9
E1
9
4
B7
PC15-
OSC32_OUT
I/O
TC
PC15
-
OSC32_OUT
10
D6
-
-
-
PF0
I/O
FT
PF0
-
-
11
D5
-
-
-
PF1
I/O
FT
PF1
-
-
12
D4
-
-
-
PF2
I/O
FT
PF2
-
-
13
E4
-
-
-
PF3
I/O
FT
PF3
-
-