UM0882
Schematics
Doc ID 16881 Rev 2
6 Schematics
Figure 13.
Connectors, buttons, UART
2.0 V
1
2
LD
5
red
3.3 V
R16
2.2 kV
tantal
(A
)
C7
10 µF
size A
16 V
(10 V)
3.3 V
4.5 V
C8
10 nF
V
IN
1
GND
2
INHIBIT
3
V
OUT
5
NC
4
U5
L
F
33xDT, LD3985M33R
AM00675
1
2
3
P
4
Signal for
serial
USRX
UST
X
USDI
R
1
2
P
5
P
o
wer for
serial
3.3 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN
1
GM: MLW20G
3V
3
JTRS
T
JTDI
JTMS
JTCK
JRTC
K
JTDO
JRST
DBGR
Q
DBGAC
K
R23
1
0
K
Ω
R22
1
0
K
Ω
3.3 V
R20
1
0
K
Ω
C10
100 nF
S1
LE
F
T
C12
100 nF
S3
RIGHT
C11
100 nF
S2
CENTER
P
C13
P
C14
P
C15
C14
100 nF
S4
RESET/EXIT
JRST
R48
100
Ω
R47
100
Ω
R46
100
Ω
10 K
Ω
1
3
2
R17
VarRe
z
3.3 V
R15
330
Ω
C13
100 nF
ADC
HOLE
Hole1
Distance hole
HOLE
Hole2
Distance hole
HOLE
Hole3
Distance hole
HOLE
Hole4
Distance hole
ST
DDD1
ST_LOGO
ROH1
DDD4
ROH1
ROH2
DDD3
ROH2
ROH1
DDD2
ROH1
C16
100 nF
3.3 V
C17
100 nF
3.3 V
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