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SN55LBC174 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN55LBC174
Description  QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN55LBC174 Datasheet(HTML) 1 Page - Texas Instruments

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SN55LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SGLS082 – MARCH 1995
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Meets EIA Standard RS-485
D Designed for High-Speed Multipoint
Transmission on Long Bus Lines in Noisy
Environments
D Supports Data Rates up to and Exceeding
Ten Million Transfers Per Second
D Common-Mode Output Voltage Range of
– 7 V to 12 V
D Positive- and Negative-Current Limiting
D Low Power Consumption... 1.5 mA Max
(Output Disabled)
description
The SN55LBC174 is composed of monolithic
quadruple differential line drivers with 3-state
outputs. This device is designed to meet the
requirements
of
the
Electronics
Industry
Association (EIA) Standard RS-485 and is
optimized
for
balanced
multipoint
bus
transmission at data rates up to and exceeding 10
million bits per second. Each driver features wide
positive and negative common-mode output
voltage
ranges,
current
limiting,
and
thermal-shutdown protection making it suitable
for party-line applications in noisy environments.
This device is designed using LinBiCMOS
™,
facilitating ultra-low power consumption and
inherent robustness.
The SN55LBC174 provides positive and negative-current limiting and thermal shutdown for protection from line
fault conditions on the transmission bus line. This device offers optimum performance when used with the
SN55LBC173 quadruple line receiver. The SN55LBC174 is available in the 16-pin CDIP package (J), the 16-pin
CPAK (W), or the 20-pin LCCC package (FK).
The SN55LBC174 is characterized for operation over the military temperature range of – 55
°C to 125°C.
FUNCTION TABLE
(each driver)
INPUT
ENABLE
OUTPUTS
INPUT
ENABLE
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
© 1995, 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.
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
J OR W PACKAGE
(TOP VIEW)
NC – No internal connection
FK PACKAGE
(TOP VIEW)
19
20
1
32
17
18
16
15
14
13
12
11
9
10
5
4
6
7
8
4Y
4Z
NC
3, 4EN
3Z
3Z
1, 2EN
NC
2Z
2Y
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.
LinBiCMOS is a trademark of Texas Instruments Incorporated.


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