SN75ALS173

QUADRUPLE DIFFERENTIAL LINE RECEIVER

SLLS132C – SEPTEMBER 1991 – REVISED MAY 1995

1

POST OFFICE BOX 655303

ANSI EIA/TIA-422-B, EIA/TIA-423-B, and

RS-485

Recommendations V.10, V.11, X.26, and

X.27

on Long Bus Lines in Noisy Environments

– 12 V to 12 V

27 mA Max

description

The SN75ALS173 is a monolithic quadruple differential line receiver with 3-state outputs. It is designed to meet

the requirements of ANSI Standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485, and several ITU

recommendations. Advanced low-power Schottky technology provides high speed without the usual power

penalty. The four receivers have an ORed pair of enables in common. Either G high or G low enables all of the

receivers. The device features high input impedance, input hysteresis for increased noise immunity, and input

sensitivity of

±200 mV over a common-mode input voltage range of –12 V to 12 V.

The SN75ALS173 is characterized for operation from 0

°C to 70°C.

FUNCTION TABLE

(each receiver)

DIFFERENTIAL

ENABLES

OUTPUT

A – B

G

G

Y

VID ≥ 02 V

H

X

H

VID ≥ 0.2 V

X

LH

0 2V<VID <0 2V

H

X

?

– 0.2 V < VID < 0.2 V

X

L?

VID ≤ 02 V

H

X

L

VID ≤ – 0.2 V

X

LL

X

L

H

Z

Open Circuit

H

X

H

Open Circuit

X

L

H

H = high level, L = low level, ? = indeterminate,

X = irrelevant, Z = high impedance (off)

Copyright

© 1995, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1B

1A

1Y

G

2Y

2A

2B

GND

4B

4A

4Y

G

3Y

3A

3B

N OR NS† PACKAGE

(TOP VIEW)

† The NS package is only available left-end taped and

reeled (order device SN75ALS173 NSLE).