Schematics
UM1065
Doc ID 018640 Rev 4
Figure 26.
RS-232 and IrDA
1
1
2
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3
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4
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STM32
20-21-45-46
G-EVAL
RS-232 & IrDA
C2
+
1
C2
-
2
V-
3
R1
IN
4
R2
IN
5
R3
IN
6
R4
IN
7
R5
IN
8
T1
O
U
T
9
T2
O
U
T
10
T3
O
U
T
11
T3
IN
12
T2
IN
13
T1
IN
14
R5
O
U
T
15
R4
O
U
T
16
R3
O
U
T
17
R2
O
U
T
18
R1
O
U
T
19
R2
O
U
T
B
20
R1
O
U
T
B
21
nS
H
D
N
22
nEN
23
C1
-
24
GN
D
25
VC
C
26
V+
27
C1
+
28
U1
7
S
T
3241EB
P
R
C7
8
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n
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C8
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C7
6
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7
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C7
9
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1
6
2
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3
8
4
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5
CN
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er
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C11
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CT
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