SN75ALS181

www.ti.com

SLLS152C – DECEMBER 1992 – REVISED MAY 2010

DIFFERENTIAL DRIVER AND RECEIVER PAIR

Check for Samples: SN75ALS181

1

FEATURES

•

Meets TIA/EIA-422-B, TIA/EIA-485-A, and

•

Glitch-Free Power-Up and Power-Down

CCITT Recommendations V.11 and X.27

Protection

•

Low Supply-Current Requirements...

N OR NS PACKAGE

30 mA Max

(TOP VIEW)

•

Driver Output Capacity...±60 mA

•

Thermal Shutdown Protection

•

Driver Common-Mode Output Voltage Range

of –7 V to 12 V

•

Receiver Input Impedance...12 k

Ω Min

•

Receiver Input Sensitivity...±200 mV

•

Receiver Input Hysteresis...60 mV Typ

•

Receiver Common-Mode Input Voltage Range

of ±12 V

N.C. – No internal connection

•

Operates From Single 5-V Supply

DESCRIPTION

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

ORDERABLE PART NUMBER

TOP-SIDE MARKING

PDIP – N

Tape and reel

SN75ALS181N

SN75ALS181N

0°C to 70°C

SOP – NS

Tape and reel

SN75ALS181NSR

75ALS181

(1)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(2)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

1

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 1992–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.