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SN75ALS174A Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN75ALS174A
Description  QUADRUPLE DIFFERENTIAL LINE DRIVER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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SN75ALS174A Datasheet(HTML) 1 Page - Texas Instruments

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SN75ALS174A
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS122E – JULY 1991 – REVISED APRIL 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Meets or Exceeds the Requirements of
ANSI EIA/TIA-422-B and RS-485
D High-Speed Advanced Low-Power Schottky
Circuitry
D Designed for up to 20-Mbit/s Operation in
Both Serial and Parallel Applications
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Low Supply Current Requirements
55 mA Max
D Wide Positive and Negative Input/Output
Bus Voltage Ranges
D Driver Output Capacity... ±60 mA
D Thermal-Shutdown Protection
D Driver Positive- and Negative-Current
Limiting
D Functionally Interchangeable With SN75174
description
The SN75ALS174A is a quadruple line driver with
3-state differential outputs. It is designed to meet
the
requirements
of
ANSI
Standards
EIA/TIA-422-B and RS-485. This device is
optimized
for
balanced
multipoint
bus
transmission at rates of up to 20 Mbit/s. Each
driver features wide positive and negative
common-mode output voltage ranges that make
them suitable for party-line applications in noisy
environments.
The SN75ALS174A provides positive- and negative-current limiting and thermal shutdown for protection from
line fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of
approximately 150
°C.
The SN75ALS174A is characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
(each driver)
INPUT
ENABLES
OUTPUTS
A
ENABLES
Y
Z
H
H
H
L
L
H
L
H
X
L
Z
Z
H = high level, L = low level, X = irrelevant,
Z = high impedance (off)
Copyright
© 1998, 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.
DW PACKAGE
(TOP VIEW)
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2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1A
1Y
NC
1Z
1,2EN
2Z
NC
2Y
2A
GND
VCC
4A
4Y
NC
4Z
3,4EN
3Z
NC
3Y
3A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1Y
1Z
1,2EN
2Z
2Y
2A
GND
VCC
4A
4Y
4Z
3,4EN
3Z
3Y
3A
N PACKAGE
(TOP VIEW)
NC – No internal connection


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