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ISL8487_06 Datasheet(PDF) 3 Page - Intersil Corporation

Part No. ISL8487_06
Description  1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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 3 page
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3
FN6050.7
July 31, 2006
Pin Descriptions
PIN
FUNCTION
RO
Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).
RE
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
DE
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
DI
Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.
GND
Ground connection.
A/Y
RS-485/422 level, noninverting receiver input and noninverting driver output. Pin is an input (A) if DE = 0; pin is an output (Y) if DE = 1.
B/Z
RS-485/422 level, inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0; pin is an output (Z) if DE = 1.
VCC
System power supply input (4.5V to 5.5V).
Typical Operating Circuits
ISL8487, ISL81483, ISL81487
0.1
μF
+
D
R
7
6
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+5V
0.1
μF
+
D
R
6
7
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+5V
RT
RT
ISL8487, ISL81483, ISL81487




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