DSASW00171236.pdf
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Exar
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SP331
Programmable Dual RS-232/RS-485 Transceiver
TI4
SEL_B
TX4
TX3
VCC
TX1
TX2
GND
C1+
V+ (VDD)
C2+
C1
C2
V (VSS)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SP331
· +5V
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Original
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