ISL32483E, ISL32485E

4

FN7785.0

January 18, 2011

Truth Tables

TRANSMITTING

INPUTS

OUTPUTS

RE

DE

DI

INV or DINV

Y

Z

X1

1

0

1

0

X1

0

0

0

1

X1

1

1

0

1

X1

0

1

1

0

0

0

X

X

High-Z

High-Z

10

X

X

High-Z

(see Note)

High-Z

(see Note)

NOTE: Low Power Shutdown Mode (see Note 11 on page 7), except

for ISL32485E.

RECEIVING

INPUTS

OUTPUT

RE

DE (Half

Duplex)

DE (Full

Duplex)

A-B

INV or

RINV

RO

00

X

≥ -0.01V

0

1

00

X

≤ -0.2V

0

0

00

X

≤ 0.01V

1

1

00

X

≥ 0.2V

1

0

00

X

Inputs

Open or

Shorted

X1

10

0

X

X

High-Z

(see Note)

11

1

X

X

High-Z

NOTE: Low Power Shutdown Mode (see Note 11 on page 7), except for

ISL32485E.

Typical Operating Circuits

ISL34183E FULL DUPLEX EXAMPLE

0.1µF

+

D

R

11

12

9

10

13, 14

2

3

4

5

6, 7

GND

RO

RE

DE

DI

B

A

Z

Y

+5V

0.1µF

+

D

R

12

11

10

9

13, 14

2

3

4

5

6, 7

GND

RO

RE

DE

DI

A

B

Y

Z

+5V

DINV

1

THE IC ON THE LEFT HAS THE CABLE CONNECTIONS

SWAPPED, SO THE INV PINS (1, 8) ARE STRAPPED

HIGH TO INVERT ITS RX AND TX POLARITY

8

RINV

RINV

DINV

1

8