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SP331 数据表(PDF) 7 Page - Sipex Corporation

部件名 SP331
功能描述  Programmable Dual RS-232/RS-485 Transceiver
PDF  13 Pages
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制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP331 数据表(HTML) 7 Page - Sipex Corporation

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Date: 03-04-05
Programmable Dual RS-232/RS-485 Transceiver
© Copyright 2005 Sipex Corporation
7
SEL A
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1µF
0.1µF
C1+
C1-
C2+
C2-
1
SEL B
2
+5V
VCC
5
GND
8
9
11
12
13
19
20
22
24
26
27
28
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T3
R1
RS-485
RS-485
RS-485
0V
0.1µF
0.1µF
V+
V-
0V
SEL C
RS-485
RS-485
RS-485
4
6
7
10
14
15
16
23
25
3
RI1
RI2
TX3
TX4
TX1
TX2
TI1
TI2
TI3
TI4
RX1
RX2
TTL/CMOS
21
R3
17
18
RI4
RI3
RX3
RX4
15KΩ
15KΩ
15KΩ
15KΩ
400KΩ
Vcc
400KΩ
Vcc
SEL D
RS-485
RS-485
+5V
+5V
+5V
GND
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
0V
0.1µF
0.1µF
VCC
V+
V-
0V
SEL C
RS-232
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T2
T3
T4
TX1
TX2
TX3
TX4
TI1
TI2
TI3
TI4
RI1
RI2
RI3
RI4
RX1
RX2
RX3
RX4
1
3
4
5
6
7
8
10
0.1µF
0.1µF
C1+
C1-
C2+
C2-
9
11
12
13
14
15
16
17
18
19
20
21
22
23
SEL B
2
SEL A
24
25
26
27
28
R1
R2
R3
R4
5KΩ
5KΩ
5KΩ
5KΩ
400KΩ
Vcc
400KΩ
Vcc
400KΩ
Vcc
400KΩ
Vcc
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
SEL D
0V
0V
SP331
SP331
Figure 10. Typical Operating Circuit
TI4
SEL_B
TX4
TX3
VCC
TX1
TX2
GND
C1+
V+ (VDD)
C2+
C1–
C2–
V– (VSS)
TI3
TI2
TI1
SEL_C
SEL_A
SEL_D
RX4
RX3
RX2
RX1
RI4
RI3
RI2
RI1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Figure 9. SP331 Pinout



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