Vcc

GND

B

A

D

DE

R

RE

D

R

DE

RE

Vcc

B

A

GND

1

2

3

4

8

7

6

5

SN888C

SLLSEI4 – SEPTEMBER 2013

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

SOIC-8

Block Diagram

(TOP VIEW)

DRIVER PIN FUNCTIONS

INPUT

ENABLE

OUTPUTS

DESCRIPTION

D

DE

A

B

NORMAL MODE

H

H

H

L

Actively drives bus high

L

H

L

H

Actively drives bus low

X

L

Z

Z

Driver disabled

X

OPEN

Z

Z

Driver disabled by default

OPEN

H

H

L

Actively drives bus high

H

H

L

H

Actively drives bus low

L

H

H

L

Actively drives bus high

X

L

Z

Z

Driver disabled

X

OPEN

Z

Z

Driver disabled by default

OPEN

H

L

H

Actively drives bus low

(1)

RECEIVER PIN FUNCTIONS

DIFFERENTIAL

ENABLE

OUTPUT

INPUT

DESCRIPTION

/RE

R

NORMAL MODE

L

H

Receive valid bus high

L

?

Indeterminate bus state

L

L

Receive valid bus low

X

H

Z

Receiver disabled

X

OPEN

Z

Receiver disabled

Open, short, idle bus

L

?

Indeterminate bus state

L

L

Receive valid bus low

L

?

Indeterminate bus state

L

H

Receive polarity corrected bus high

X

H

Z

Receiver disabled

X

OPEN

Z

Receiver disabled

Open, short, idle bus

L

?

Indeterminate bus state

(1)

2

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