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SN75ALS174

更新时间： 2024-09-21 00:01:23
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
7页 109K
描述
QUADRUPLE DIFFERENTIAL LINE DRIVER

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SN75ALS174 数据手册

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SN75ALS174A  
QUADRUPLE DIFFERENTIAL LINE DRIVER  
SLLS122E – JULY 1991 – REVISED APRIL 1998  
N PACKAGE  
(TOP VIEW)  
Meets or Exceeds the Requirements of  
ANSI EIA/TIA-422-B and RS-485  
High-Speed Advanced Low-Power Schottky  
Circuitry  
V
1A  
1Y  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
CC  
4A  
Designed for up to 20-Mbit/s Operation in  
Both Serial and Parallel Applications  
4Y  
1Z  
4Z  
1,2EN  
2Z  
Designed for Multipoint Transmission on  
Long Bus Lines in Noisy Environments  
3,4EN  
11 3Z  
10 3Y  
2Y  
2A  
Low Supply Current Requirements  
55 mA Max  
9
3A  
GND  
Wide Positive and Negative Input/Output  
Bus Voltage Ranges  
DW PACKAGE  
(TOP VIEW)  
Driver Output Capacity . . . ±60 mA  
Thermal-Shutdown Protection  
1A  
1Y  
V
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
CC  
Driver Positive- and Negative-Current  
Limiting  
4A  
4Y  
NC  
4Z  
NC  
Functionally Interchangeable With SN75174  
1Z  
1,2EN  
2Z  
description  
15 3,4EN  
14  
13  
12  
11  
NC  
3Z  
NC  
3Y  
3A  
The SN75ALS174A is a quadruple line driver with  
3-state differential outputs. It is designed to meet  
2Y  
2A  
the  
EIA/TIA-422-B and RS-485. This device is  
optimized for balanced multipoint bus  
requirements  
of  
ANSI  
Standards  
GND  
NC – No internal connection  
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)  
OUTPUTS  
INPUT  
A
ENABLES  
Y
H
L
Z
L
H
L
H
H
L
H
Z
X
Z
H = high level, L = low level, X=irrelevant,  
Z = high impedance (off)  
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.  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567

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