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SN75ALS171A

更新时间： 2024-11-08 04:31:15
品牌 Logo 应用领域
德州仪器 - TI 总线收发器
页数 文件大小 规格书
24页 501K
描述
TRIPLE DIFFERENTIAL BUS TRANSCEIVERS

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SN75ALS171A 数据手册

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SN75ALS171, SN75ALS171A  
TRIPLE DIFFERENTIAL BUS TRANSCEIVERS  
SLLS056D – AUGUST 1987 – REVISED SEPTEMBER 1995  
DW OR J PACKAGE  
(TOP VIEW)  
Three Bidirectional Transceivers  
Driver Meets or Exceeds the Requirements  
of ANSI EIA/TIA-422-B and RS-485 and ITU  
Recommendation V.11  
1R  
1DE  
1D  
1B  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
1A  
Two Skew Limits Available  
RE  
CDE  
Designed to Operate Up to 20 Million Data  
Transfers per Second (FAST-20 SCSI)  
GND  
GND  
2R  
V
CC  
15 2B  
High-Speed Advanced Low-Power Schottky  
Circuitry  
14  
13  
12  
11  
2DE  
2D  
2A  
3B  
3A  
3D  
Low Pulse Skew . . . 5 ns Max  
3R  
Designed for Multipoint Transmission on  
Long Bus Lines in Noisy Environments  
3DE  
Features Independent Driver Enables and  
Combined Receiver Enables  
Wide Positive and Negative Input/Output  
Bus Voltages Ranges  
Driver Output Capacity . . . ±60 mA  
Thermal Shutdown Protection  
Driver Positive- and Negative-Current  
Limiting  
Receiver Input Impedances . . . 12 kΩ Min  
Receiver Input Sensitivity . . . ±300 mV Max  
Receiver Input Hysteresis . . . 60 mV Typ  
Operates From a Single 5-V Supply  
Glitch-Free Power-Up and Power-Down  
Protection  
description  
The SN75ALS171 and the SN75ALS171A triple differential bus transceivers are monolithic integrated circuits  
designed for bidirectional data communication on multipoint bus transmission lines. They are designed for  
balanced transmission lines, and each driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the  
drivers and receivers meet ITU Recommendation V.11. The SN75ALS171A is designed for FAST-20 SCSI and  
can transmit or receive data pulses as short as 30 ns with a maximum skew of 5 ns.  
The SN75ALS171 and the SN75ALS171A operate from a single 5-V power supply. The drivers and receivers  
have individual active-high and active-low enables, respectively, which can be externally connected together  
to function as a direction control. The driver differential output and the receiver differential input pairs are  
connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading  
to the bus when the driver is disabled or V  
common-mode voltage ranges making the device suitable for party-line applications.  
is at 0 V. These ports feature wide positive and negative  
CC  
The SN75ALS171 and the SN75ALS171A are characterized for operation from 0°C to 70°C.  
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 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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...24

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SN75ALS171A 替代型号

型号 品牌 替代类型 描述 数据表
SN75ALS171 TI

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 TRIPLE DIFFERENTIAL BUS TRANSCEIVERS
SN75ALS170A TI

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 TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SN75ALS170 TI

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 TRIPLE DIFFERENTIAL BUS TRANSCEIVER

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SN75ALS171DWE4 TI

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SN75ALS171DWR TI

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SN75ALS171DWRE4 TI

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SN75ALS171DWRG4 TI

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