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SN75140 PDF预览

SN75140

更新时间: 2024-11-24 22:53:35
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德州仪器 - TI /
页数 文件大小 规格书
9页 145K
描述
DUAL LINE RECEIVER

SN75140 数据手册

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SN75140  
DUAL LINE RECEIVER  
SLLS080C – JANUARY 1977 – REVISED APRIL 1998  
P OR PS PACKAGE  
Single 5-V Supply  
(TOP VIEW)  
±100-mV Sensitivity  
For Application as:  
– Single-Ended Line Receiver  
– Gated Oscillator  
1
2
3
4
8
7
6
5
1OUT  
COMSTRB  
1LINE  
V
CC  
2OUT  
COMREF  
2LINE  
– Level Comparator  
GND  
Adjustable Reference Voltage  
TTL Outputs  
The PS package is only available  
left-ended taped and reeled (order  
SN75140 PSR).  
TTL-Compatible Strobe  
Designed for Party-Line (Data-Bus)  
Applications  
Common Reference-Voltage Pin  
Common Strobe  
description  
This device consists of a dual single-ended line receiver with TTL-compatible strobes and outputs. The  
reference voltage (switching threshold) is applied externally and can be adjusted from 1.5 V to 3.5 V, making  
it possible to optimize noise immunity for a given system design. Due to the low input current (less than 100 µA),  
the device is suited ideally for party-line (data-bus) systems.  
The SN75140 has a common reference-voltage pin and a common strobe.  
The SN75140 is characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
(each receiver)  
LINE INPUT  
V – 100 mV  
STROBE OUTPUT  
L
X
H
H
L
L
ref  
V + 100 mV  
ref  
X
H = high level, L = low level, X = irrelevant  
logic symbol  
2
3
COMSTRB  
1LINE  
1  
1  
1
7
1OUT  
2OUT  
6
5
COMREF  
2LINE  
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.  
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  

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