SN75ALS181 Datasheet, PDF (1/14 Pages) Texas Instruments – DIFFERENTIAL DRIVER AND RECEIVER PAIR

SN75ALS181
DIFFERENTIAL DRIVER AND RECEIVER PAIR
D Meets TIA/EIA-422-B, TIA/EIA-485-A, and
CCITT Recommendations V.11 and X.27
D Low Supply-Current Requirements . . .
30 mA Max
D Driver Output Capacity . . . ±60 mA
D Thermal Shutdown Protection
D Driver Common-Mode Output Voltage
Range of –7 V to 12 V
D Receiver Input Impedance . . . 12 kΩ Min
D Receiver Input Sensitivity . . . ±200 mV
D Receiver Input Hysteresis . . . 60 mV Typ
D Receiver Common-Mode Input Voltage
Range of ±12 V
D Operates From Single 5-V Supply
D Glitch-Free Power-Up and Power-Down
Protection
SLLS152B – DECEMBER 1992 – REVISED APRIL 2003
N OR NS PACKAGE
(TOP VIEW)
NC 1
R2
RE 3
DE 4
D5
GND 6
GND 7
14 V_CC
13 V_CC
12 A
11 B
10 Z
9Y
8 NC
NC – No internal connection
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
minimum loading to the bus when the driver is disabled or V_CC = 0. These ports feature wide positive and
negative common-mode voltage changes, making the device suitable for party-line applications.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0°C to 70°C
PDIP (N)
SOP (NS)
Tube of 25
Reel of 2000
SN75ALS181N
SN75ALS181NSR
SN75ALS181N
75ALS181
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2003, Texas Instruments Incorporated
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