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SN75ALS181N Datasheet Preview

SN75ALS181N Datasheet

DIFFERENTIAL DRIVER AND RECEIVER PAIR

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SN75ALS181
www.ti.com
SLLS152D – DECEMBER 1992 – REVISED AUGUST 2013
DIFFERENTIAL DRIVER AND RECEIVER PAIR
Check for Samples: SN75ALS181
FEATURES
1
• Meets TIA/EIA-422-B, TIA/EIA-485-A, and
CCITT Recommendations V.11 and X.27
• Low Supply-Current Requirements...
30 mA Max
• Driver Output Capacity...±60 mA
• Thermal Shutdown Protection
• Driver Common-Mode Output Voltage Range
of –7 V to 12 V
• Receiver Input Impedance...12 kΩ Min
• Receiver Input Sensitivity...±200 mV
• Receiver Input Hysteresis...60 mV Typ
• Receiver Common-Mode Input Voltage Range
of ±12 V
• Operates From Single 5-V Supply
• Glitch-Free Power-Up and Power-Down
Protection
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 minimum loading to the bus
when the driver is disabled or VCC = 0. These ports
feature wide positive and negative common-mode
voltage changes, making the device suitable for
party-line applications.
N OR NS PACKAGE
(TOP VIEW)
N.C. – No internal connection
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1992–2013, Texas Instruments Incorporated




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SN75ALS181N Datasheet Preview

SN75ALS181N Datasheet

DIFFERENTIAL DRIVER AND RECEIVER PAIR

No Preview Available !

SN75ALS181
SLLS152D – DECEMBER 1992 – REVISED AUGUST 2013
FUNCTION TABLES
INPUTS
D
H
L
X
Each Driver
ENABLE
DE
OUTPUTS
Y
Z
H
H
L
H
L
H
L
Z
Z
DIFFERENTIAL
A–B
VID 0.2 V
–0.2 V < VID < 0.2 V
VID –0.2 V
X
Each Receiver(1)
ENABLE
RE
L
L
L
H
OUTPUT
R
H
?
L
Z
(1) H = high level, L = low level, ? = indeterminate, X = irrelevant,
Z = high impedance (off)
LOGIC DIAGRAM (POSITIVE LOGIC)
www.ti.com
2
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Copyright © 1992–2013, Texas Instruments Incorporated
Product Folder Links: SN75ALS181


Part Number SN75ALS181N
Description DIFFERENTIAL DRIVER AND RECEIVER PAIR
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