SN75ALS181

DIFFERENTIAL DRIVER AND RECEIVER PAIR

SLLS152B – DECEMBER 1992 – REVISED APRIL 2003

1

POST OFFICE BOX 655303

CCITT Recommendations V.11 and X.27

30 mA Max

Range of –7 V to 12 V

Range of

±12 V

Protection

description/ordering information

The SN75ALS181 is a differential driver and receiver pair designed for bidirectional data communication on

multipoint bus transmission lines. The design provides for balanced transmission lines and meets

TIA/EIA-422-B and TIA/EIA-485-A, and CCITT recommendations V.10, V.11, X.26, and X.27.

The SN75ALS181 combines a 3-state differential line driver and a differential-input line receiver that operate

from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively,

that can be connected together externally to function as a direction control. The driver differential outputs and

the receiver differential inputs are connected to separate pins for greater flexibility and are designed to offer

negative common-mode voltage changes, making the device suitable for party-line applications.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

0

°Cto70°C

PDIP (N)

Tube of 25

SN75ALS181N

SN75ALS181N

0

°C to 70°C

SOP (NS)

Reel of 2000

SN75ALS181NSR

75ALS181

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Copyright

 2003, 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

14

13

12

11

10

9

8

NC

R

RE

DE

D

GND

GND

A

B

Z

Y

NC

N OR NS PACKAGE

(TOP VIEW)

NC – No internal connection