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ST75185CN 데이터 시트보기 (PDF) - STMicroelectronics
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ST75185CN
MULTIPLE RS-232 DRIVERS AND RECEIVERS
STMicroelectronics
ST75185CN Datasheet PDF : 12 Pages
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ST75185
APPLICATION CIRCUITS
TTL LEVEL
DCD 38
DSR 37
RXD 21
UART
(16550)
RTS 32
TXD 11
CTS 36
DTR 33
RI 39
100nF
Vcc
+5 V
ST75185
Vcc
20
Rout1
19
Rout2
18
Rout3
17
Din1
16
Di n2
15
Rout4
14
Din3
13
Rout5
12
GND
11
Vdd
1
Rin1
2
Ri n2
3
Ri n3
4
Dout1
5
Dout2
6
Rin4
7
Dout3
8
Rin5
9
Vss
10
Vdd
+12 V
RS232 LEVEL
100nF
DCD
DSR
RXD
C
L
RTS
C
L
TXD
CTS
C
L
DTR
RI
100nF
GND
1
6
2
7
3
PC Serial Port
8
4
9
5
Vss
-12V
Dib9 Serial Port Connector
To CPU
FIGURE 1:
Driver Test Circuit for V
OH
, V
OL
,
I
SO(H)
and I
SO(L)
FIGURE 2:
Driver Test Circuitfor I
IH
and I
IL
6/12
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