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SN75154DR PDF预览

SN75154DR

更新时间: 2024-02-09 00:47:39
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SN75154DR 数据手册

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SN75154  
QUADRUPLE LINE RECEIVER  
SLLS083B – NOVEMBER 1970 – REVISED MAY 1995  
D OR N PACKAGE  
(TOP VIEW)  
Meets or Exceeds the Requirements of  
ANSI Standard EIA/TIA-232-E and ITU  
Recommendation V.28  
V
V
3T  
2T  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
CC2  
CC1  
Input Resistance . . . 3 kto 7 kOver Full  
EIA/TIA-232-E Voltage Range  
4T  
1Y  
1T  
Input Threshold Adjustable to Meet  
Fail-Safe Requirements Without Using  
External Components  
1A  
12 2Y  
11 3Y  
2A  
3A  
Built-In Hysteresis for Increased Noise  
Immunity  
10  
9
4Y  
R1  
4A  
GND  
Inverting Output Compatible With TTL  
For function of R1, see schematic  
Output With Active Pullup for Symmetrical  
Switching Speeds  
Standard Supply Voltages . . . 5 V or 12 V  
description  
The SN75154 is a monolithic low-power Schottky line receiver designed to satisfy the requirements of the  
standard interface between data terminal equipment and data communication equipment as defined by ANSI  
Standard EIA/TIA-232-E. Other applications are for relatively short, single-line, point-to-point data transmission  
and for level translators. Operation is normally from a single 5-V supply; however, a built-in option allows  
operation from a 12-V supply without the use of additional components. The output is compatible with most TTL  
circuits when either supply voltage is used.  
In normal operation, the threshold-control terminals are connected to the V  
terminal, even if power is being  
CC1  
supplied via the alternate V  
terminal. This provides a wide hysteresis loop, which is the difference between  
CC2  
the positive-going and negative-going threshold voltages. See typical characteristics. In this mode of operation,  
if the input voltage goes to zero, the output voltage will remain at the low or high level as determined by the  
previous input.  
For fail-safe operation, the threshold-control terminals are open. This reduces the hysteresis loop by causing  
the negative-going threshold voltage to be above zero. The positive-going threshold voltage remains above  
zero as it is unaffected by the disposition of the threshold terminals. In the fail-safe mode, if the input voltage  
goes to zero or an open-circuit condition, the output will go to the high level regardless of the previous input  
condition.  
The SN75154 is 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  

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