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SP3238E 데이터 시트보기 (PDF) - Exar Corporation
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SP3238E
Intelligent +3.0V to +5.5V RS-232 Transceiver
Exar Corporation
SP3238E Datasheet PDF : 20 Pages
First
Prev
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20
V
CC
+
C5 0.1µF
26
V
CC
+
28
C1+
C1 0.1µF
25
C1-
V+
1
C2+
SP3238E
+
C2 0.1µF
3
C2-
V-
16
R
1
OUT
21
R
1
OUT
R
1
IN
20
R
2
OUT
5kΩ
R
2
IN
18
R
3
OUT
5kΩ
R
3
IN
5kΩ
24
T
1
IN
T
1
OUT
27
+
C3 0.1µF
4
C4 0.1µF
+
8
9
11
5
23
T
2
IN
T
2
OUT
6
22
T
3
IN
T
3
OUT
7
19
T
4
IN
T
4
OUT
10
17
T
5
IN
V
CC
To µP Supervisor
Circuit
14
SHUTDOWN
13
ONLINE
15
STATUS
GND
2
T
5
OUT
12
DB-9 Connector Pins:
1. Received Line Signal Detector 6. DCE Ready
2. Received Data
7. Request to Send
3. Transmitted Data
8. Clear to Send
4. Data Terminal Ready
9. Ring Indicator
5. Signal Ground (Common)
DB-9
Connector
6
7
8
9
1
2
3
4
5
Figure 15. Circuit for the connectivity of the SP3238E with a DB-9 connector
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
11
SP3238E_100_020111
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