SN75186

QUADRUPLE DRIVER/RECEIVER WITH LOOPBACK

SLLS068C – FEBRUARY 1990 – REVISED MAY 1995

2

POST OFFICE BOX 655303

Function Tables

EACH RECEIVER

LOOPBACK

INPUTS

INPUT

LB

A

B†

DE

H

X

H

L

H

X

LH

L

L

XL

L

H

X

H

EACH DRIVER

LOOPBACK

INPUT

OUTPUT

LB

A

Y†

H

H

L

H

L

H

L

X

L

† Voltages are EIA / TIA-232-E, and V.28 levels

H = high level, L = low level, X = irrelevant

G1

21

G2

24

G3

3

G4

6

1Y

16

1

1V5

19

1A

20

1Z

1B

15

1

2Y

14

2

2V6

22

2A

6

23

2Z

2B

13

2

3Y

12

3

3V7

1

3A

4Y

10

4

4V8

4

4A

8

5

4Z

4B

9

4

7

2

3Z

3B

11

3

1LB

2LB

3LB

4LB

‡ This symbol is in accordance with ANSI/IEEE Std 91-1984 and

IEC Publication 617-12.

Pin numbers shown are for the DW package.

logic diagram, each driver/receiver pair

(positive logic)

Z

LB

A

Receiver

B

Y

Driver