9
Rev. 6/30/03
SP3223 +3.0V to +5.5V RS-232 Transceivers
Copyright 2003 Sipex Corporation
Figure 10. SP3243 Typical Operating Circuit
SP3243
28
24
2
1
27
3
26
5K
5K
5K
5K
5K
GND
C1+
C1-
C2+
C2-
V+
V-
V
CC
14
13
12
20
19
18
17
16
15
0.1
μ
F
0.1
μ
F
0.1
μ
F
+
C2
C5
C1
+
+
C3
C4
+
+
0.1
μ
F
0.1
μ
F
9
10
11
4
5
6
7
8
RS-232
OUTPUTS
RS-232
INPUTS
TTL/CMOS
INPUTS
TTL/CMOS
OUTPUTS
To μP Supervisor
Circuit
23
22
21
V
CC
V
CC
25
T
1
IN
R
1
OUT
R
1
IN
T
2
OUT
R
2
OUT
T
2
IN
T
3
IN
T
3
OUT
T
1
OUT
R
2
IN
R
3
IN
R
4
IN
R
5
IN
R
2
OUT
R
3
OUT
R
4
OUT
R
5
OUT
ONLINE
SHUTDOWN
STATUS
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