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SN75ALS1178

更新时间： 2024-09-20 04:31:15
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
11页 192K
描述
DUAL DIFFERENTIAL DRIVERS AND RECEIVERS

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SN75ALS1178 数据手册

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SN75ALS1177, SN75ALS1178  
DUAL DIFFERENTIAL DRIVERS AND RECEIVERS  
SLLS154A – MARCH 1993 – REVISED MAY 1995  
†
SN75ALS1177 . . . N OR NS PACKAGE  
Meet or Exceed Standards EIA/TIA-422-B,  
RS-485, CCITT Recommendation V.11  
(TOP VIEW)  
Designed for Multipoint Bus Transmission  
on Long Bus Lines in Noisy Environments  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1B  
1A  
V
CC  
1D  
1Y  
1Z  
DE  
2Z  
2Y  
2D  
Low Supply Current Requirement  
50 mA Max  
1R  
RE  
2R  
Driver Positive- and Negative-Current  
Limiting  
2A  
Driver Common-Mode Output Voltage  
Range of –7 V to 12 V  
2B  
GND  
Thermal Shutdown Protection  
Driver 3-State Outputs Active-High Enable  
†
SN75ALS1178 . . . N OR NS PACKAGE  
(TOP VIEW)  
Receiver Common-Mode Input Voltage  
Range of –12 V to 12 V  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
V
CC  
1B  
1A  
Receiver Input Sensitivity . . . ±200 mV  
1D  
1Y  
1Z  
Receiver Hysteresis . . . 50 mV Typ  
1R  
Receiver High Input Impedance  
12 kΩ Min  
1DE  
2R  
2DE  
2Z  
Receiver 3-State Outputs Active-Low  
Enable for SN75ALS1177 Only  
2A  
2Y  
2D  
2B  
Operate From Single 5-V Supply  
GND  
description  
†
The NS package is only available in left-end taped and  
reeled (SN75ALS1177NSLE and SN75ALS1178SNLE).  
The SN75ALS1177 and SN75ALS1178 dual  
differential drivers and receivers are monolithic  
integrated circuits designed for bidirectional data  
communication on multipoint bus transmission  
lines. They are designed for balanced transmis-  
sion lines and meet standards EIA/TIA-422-B,  
RS-485, and CCITT Recommendation V.11.  
The SN75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line  
receivers, both of which operate from a single 5-V power supply. The drivers and receivers have active-high  
and active-low enables, respectively, which can be externally connected together to function as direction  
control. The SN75ALS1178 drivers each have an individual active-high enable. Fail-safe design ensures that  
when the receiver inputs are open, the receiver outputs are always high.  
The SN75ALS1177 and SN75ALS1178 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...11

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SN75ALS1178 替代型号

型号 品牌 替代类型 描述 数据表
TPD2E007 TI

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