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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
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C2+
1
GND
2
C2-
3
V-
4
T1OUT
5
T2OUT
6
T3OUT
7
R1IN 8
R2IN 9
T4OUT 10
R3IN 11
T5OUT 12
ONLINE 13
SHUTDOWN 14
SP3238E
28
C1+
27
V+
26
V
CC
25
C1-
24
T1IN
23
T2IN
22 T3 IN
21 R1OUT
20 R2OUT
19
T4IN
18 R3OUT
17 T5IN
16 R1OUT
15 STATUS
Figure 4. SP3238E Pinout Configuration
+
C5 0.1µF
+
28
C1+
C1 0.1µF
25 C1-
1 C2+
+
C2 0.1µF
3 C2-
TTL/CMOS
INPUTS
24
T
1
IN
23
T
2
IN
22
T
3
IN
19
T
4
IN
17
T
5
IN
26
V
CC
V
CC
V+
27
SP3238E
V-
4
T
1
OUT
5
T
2
OUT
6
T
3
OUT
7
T
4
OUT
10
T
5
OUT
12
TTL/CMOS
OUTPUTS
V
CC
To µP Supervisor
Circuit
16
R
1
OUT
21
R
1
OUT
R
1
IN
8
20
R
2
OUT
5kΩ
R
2
IN
9
18
R
3
OUT
5kΩ
R
3
IN
11
14
SHUTDOWN
13
ONLINE
5kΩ
15
STATUS
GND
2
+
C3 0.1µF
C4 0.1µF
+
RS-232
OUTPUTS
RS-232
INPUTS
Figure 5. SP3238E Typical Operating Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3238E_100_020111
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