參數(shù)資料
型號(hào): SP331
元件分類(lèi): RS-232
英文描述: 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述: 5V的高速RS - 232收發(fā)器與0.1uF電容
文件頁(yè)數(shù): 7/13頁(yè)
文件大小: 169K
代理商: SP331
SP331DS/13
SP331 RS-232/RS-485 Serial Transceiver
7
Copyright 2000 Sipex Corporation
SEL A
SEL B
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
μ
F
0.1
μ
F
C1+
C1-
C2+
C2-
1
2
+5V
VCC
5
GND
8
9
11
12
13
24
19
20
22
26
27
28
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T3
R1
RS-485
RS-485
RS-485
0V
0.1
μ
F
0.1
μ
F
23
V+
V-
0V
SEL C
RS-485
RS-485
RS-485
4
6
7
10
14
15
16
25
3
RI1
RI2
TX3
TX4
TX1
TX2
TI1
TI2
TI3
TI4
RX1
RX2
TTL/CMOS
21
R3
17
18
RI4
RI3
RX3
RX4
15K
15K
15K
15K
400K
Vcc
400K
Vcc
SEL D
RS-485
RS-485
+5V
+5V
+5V
GND
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
0V
0.1
μ
F
0.1
μ
F
23
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
0.1
μ
F
0.1
μ
F
C1+
C1-
C2+
C2-
SEL A
9
11
12
13
24
14
15
16
17
18
19
20
21
22
SEL B
2
25
26
27
28
R1
R2
R3
R4
5K
5K
5K
5K
400K
Vcc
400K
Vcc
400K
Vcc
400K
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
S
Figure 9. SP331 Pinout
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