UM0426
Schematics
Doc ID 13472 Rev 5
31/46
Figure 23.
USART1, USART2, IrDA
S
T
M
ic
ro
e
le
ct
ro
ni
cs
Tit
le
:
N
u
m
b
er
:
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ev
:
S
heet
o
f
B.
1(PC
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Da
te
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200
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8
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no
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ho
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47
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T1o
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14
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7
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VC
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16
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15
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4
9
5
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ale
US
AR
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6
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16
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3
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9
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DB
9-
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US
AR
T1
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it
R
S
232
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R
S
232
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X2
R
S
232
_C
TS
2
R
S
232
_R
TS
2
R
S
232
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R
S
232
_TX1
MB
5
2
5
4
1
1
S
T
M
32F
10X
-128K
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V
A
L R
S
23
2&
Ir
D
A
PD
5
PD
4
PA
9
PC1
0
R7
0
0
PA
10
PC1
1
R6
4
0
R7
7
0
PD
6
R7
9
0
PD
3
US
AR
T1
_R
X
US
AR
T1
_TX
US
AR
T1
_R
TS
US
AR
T1
_C
TS
US
AR
T0
_TX
US
AR
T0
_R
X
Ir
DA_R
X
Ir
DA_T
X
U
S
A
R
T
2
c
onnect
o
r
U
S
ART1 c
on
n
e
c
to
r
Ir
D
A
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