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ST34C87 Datasheet(PDF) 2 Page - Exar Corporation

Part No. ST34C87
Description  QUAD RS-422 CMOS Differential Line Driver
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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ST34C87 Datasheet(HTML) 2 Page - Exar Corporation

   
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ST34C87
2
Rev. 1.01
PIN CONFIGURATION
16 Lead PDIP (0.300”)
VCC
INPUT D
OUTPUT D+
OUTPUT D-
ENABLE C/D
OUTPUT C-
OUTPUT C+
INPUT C
INPUT A
OUTPUT A+
OUTPUT A-
ENABLE A/B
OUTPUT B-
OUTPUT B+
INPUT B
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
16 Lead SOIC (Jedec, 0.150”)
16
1
9
8
2
3
4
5
6
7
15
14
13
12
11
10
VCC
INPUT D
OUTPUT D+
OUTPUT D-
OUTPUT C-
OUTPUT C+
INPUT C
INPUT A
OUTPUT A+
OUTPUT A-
OUTPUT B-
OUTPUT B+
INPUT B
GND
ENABLE C/D
ENABLE A/B
PIN DESCRIPTION
Pin #
Symbol
Type
Description
1
INPUT A
I
Driver A input pin.
2
OUTPUT
A+
O
Driver A differential non-inverting output pin.
3
OUTPUT
A-
O
Driver A differential inverting output pin.
4
ENABLE
A/B
I
Gate control (active high). This pin is one of the two control pins which enables or disables all
four drivers. All four drivers are gated with two input or gate.
5
OUTPUT
B-
O
Driver B differential inverting output pin.
6
OUTPUT
B+
O
Driver B differential non-inverting output pin.
7
INPUT B
I
Driver B input pin.
8
GND
O
Signal and power ground.
9
INPUT C
I
Driver C input pin.
10
OUTPUT
C+
O
Driver C differential non-inverting output pin.
11
OUTPUT
C-
O
Driver C differential inverting output pin.
12
ENABLE
C/D
I
Gate control (active low). See ENABLE A/B pin description.
13
OUTPUT
D-
O
Driver D differential inverting output pin.
14
OUTPUT
D+
O
Driver D differential non-inverting output pin.
15
INPUT D
I
Driver D input pin.
16
VCC
I
Power supply pin.


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