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Part Name
Description
SP332 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
SP332
RS-232/RS-485 Multi-mode SerialTransceiver
Exar Corporation
'SP332' PDF : 11 Pages
View PDF
1
2
3
4
5
6
7
8
9
10
RS-232 Mode
+5V
0.1µF
0.1µF
0V
0V
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
9
C1+
5
VCC
SP332
12 C1-
11
C2+
V+
10
V-
14
13
C2-
24
SEL A
2
SEL B
0.1µF
LOOPBACK
23
Vcc
400KΩ
26
TI1
T1
Vcc
TX1
6
400KΩ
27
TI2
T2
Vcc
TX2
7
400KΩ
28
TI3
T3
Vcc
400KΩ
1 TI4
T4
TX3
4
TX4
3
0.1µF
TTL/CMOS
RS-232
RS-232
RS-232
RS-232
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
19 RX1
20 RX2
21 RX3
22 RX4
8
GND
R1
RI1 15
5KΩ
R2
RI2 16
5KΩ
R3
RI3 17
5KΩ
R4
RI4 18
5KΩ
25
SHUTDOWN
RS-232
RS-232
RS-232
RS-232
TTL/CMOS
TYPICAL APPLICATIONS CIRCUIT
0.1µF
0.1µF
+5V
+5V
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
Full Duplex RS-485 Mode
+5V
5
9
C1+
VCC
0.1µF
SP332
12 C1-
11
C2+
V+
10
V-
14
13
C2-
24
2
SEL A
SEL B
Vcc
400KΩ
26
TI1
27
TI2
Vcc
400KΩ
28
TI3
1
TI4
19
RX1
20
RX2
0.1µF
LOOPBACK
23
TTL/CMOS
TX2 7
T1
TX1 6
TX4 3
T3
TX3 4
RI2 16
R1
15KΩ
RI1 15
15KΩ
RS-485
RS-485
RS-485
RS-485
RS-485
RS-485
21 RX3
R3
RI4 18
15KΩ
RI3 17
RS-485
RS-485
22
RX4
15KΩ
8
GND
SHUTDOWN
25
TTL/CMOS
TI4
1
SEL_B
2
TX4
3
TX3
4
VCC
5
TX1
6
TX2
7
GND
8
C1+
9
V+
10
C2+
11
C1–
12
C2–
13
V–
14
28
TI3
27
TI2
26
TI1
25
SD
24
SEL_A
23
LB
22
RX4
21
RX3
20
RX2
19
RX1
18
RI4
17
RI3
16
RI2
15
RI1
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
PINOUT
SP332_100_012610
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