
Electrical schematics
UM2206
46/55
UM2206 Rev 3
Figure
22. STM32 Power
48
STM3
2
m
icrocontrol
ler
Po
w
er
Title
:
Size:
Reference:
Sheet:
o
f
A4
Revi
si
o
n
:
Proj
ect:
N
U
C
LEO64
ext-SMP
S
MB13
1
9
C0
1
0
5
-Janu
ary-20
1
8
L412
RB_P
D
ate:
-
V
ariant
:
VDD_M
C
U
VDD
AVDD
AGND
AVDD
AGND
VDD
V
BAT
AGND
SB61
SB74
DNF
SB77
DNF
SB78
SB56
SB65
DNF
VDD_M
C
U
VDD_M
C
U
VDD_M
C
U
VDD
VDDUS
B
100nF
C35
100nF
C31
100nF
C32
100nF
C38
100nF
C41
1uF
C39
V
BAT
DECAP
S
SB24
DNF
SB25
1uF
C40
VDDUS
B
1uF
C30
4.7uF
C36
Ceramic capacit
o
r (Lo
w
E
SR, ESR<1o
h
m)
VDD_1V2
1nF
C34
1nF
C33
VDD_1V2
SB74
u
se to
b
y
p
ass
L
2
w
h
en N
u
cleo p
o
w
ered b
y
A
rdu
in
o
A
V
D
D
V
BAT
1
V
SSA/
V
R
EF
-
12
VDDA/VR
E
F
+
13
V
SS_4
18
VDD_4
19
V
SS_1
31
VDD_1
32
V
SS_2
47
VDDUS
B
48
V
SS_3
63
VDD_3
64
MCU_
PWR
VDD12
62
VDD12
30
STM32
L4
12
RBT6
P
U9B
600R
@
1
00M
H
z
L2
MCU
PWR
S
U
PPLIES
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