isl8485e Intersil Corporation, isl8485e Datasheet - Page 3

• Manufacturer Part Number: isl8485e
• Description: 5v, Half Duplex, 5mbps, ?15kv Esd Protected, Rs-485/rs-422 Transceiver
• Manufacturer: Intersil Corporation

Pin Descriptions
Typical Operating Circuits
GND
V
PIN
A/Y
B/Z
RO
RE
DE
DI
CC
1
2
3
4
RO
RE
DE
DI
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).
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
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.
Ground connection.
±15kV HBM ESD Protected, 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.
±15kV HBM ESD Protected, 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.
System power supply input (4.5V to 5.5V).
D
R
8
+5V
GND
V
CC
5
B / Z
A / Y
3
7
6
+
0.1µF
R
T
ISL8483E, ISL8485E
ISL8483E, ISL8485E
FUNCTION
R
T
0.1µF
+
7
6
A / Y
B / Z
GND
V
+5V
CC
5
8
R
D
DE
RO
RE
DI
4
3
2
1