+5V, Fail-Safe, 20Mbps, Profibus RS-485/

RS-422 Transceivers

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7

MAX3460/MAX3461

Function Tables

TRANSMITTING

INPUTS

OUTPUTS

RE

DE

DI

SHDN

Z

Y

X

1

1001

X

1

0010

0

0

X

0

High-Z

High-Z

1

0

X

X

Shutdown

X

X

X

1

Shutdown

RECEIVING

INPUTS

OUTPUT

RE

DE

A–B

SHDN

RO

0X

≥ -0.05V

0

1

0X

≤ -0.2V

0

0

0

X

Open/Shorted

0

1

1

1

X

0

High-Z

1

0

X

X

Shutdown

X

X

X

1

Shutdown

MAX3462

TRANSMITTING

INPUT

OUTPUTS

DI

Z

Y

10

1

01

0

RECEIVING

INPUTS

OUTPUT

A–BRO

≥ -0.05V

1

≤ -0.2V

0

Open/Shorted

1

MAX3463/MAX3464

TRANSMITTING

INPUTS

OUTPUTS

RE

DE

DI

B

A

X1

1

0

1

X1

0

1

0

0

0

X

High-Z

High-Z

1

0

X

Shutdown

RECEIVING

INPUTS

OUTPUT

RE

DE

A–BRO

0X

≥ -0.05V

1

0X

≤ -0.2V

0

0

X

Open/Shorted

1

1

1

X

High-Z

1

0

X

Shutdown