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SN74AS257NE4

更新时间： 2024-11-15 10:34:11
品牌 Logo 应用领域
罗彻斯特 - ROCHESTER 光电二极管
页数 文件大小 规格书
22页 1107K
描述
Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDIP16, ROHS COMPLIANT, PLASTIC, MS-001BB, DIP-16

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SN74AS257NE4 数据手册

 浏览型号SN74AS257NE4的Datasheet PDF文件第2页浏览型号SN74AS257NE4的Datasheet PDF文件第3页浏览型号SN74AS257NE4的Datasheet PDF文件第4页浏览型号SN74AS257NE4的Datasheet PDF文件第5页浏览型号SN74AS257NE4的Datasheet PDF文件第6页浏览型号SN74AS257NE4的Datasheet PDF文件第7页 
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SDAS124C − APRIL 1982 − REVISED AUGUST 1996  
SN54ALS257A, SN54ALS258A . . . J PACKAGE  
SN74ALS257A, SN74ALS258A, SN74AS257,  
SN74AS258 . . . D OR N PACKAGE  
(TOP VIEW)  
D
D
D
3-State Outputs Interface Directly With  
System Bus  
Provide Bus Interface From Multiple  
Sources in High-Performance Systems  
A/B  
1A  
1B  
1Y  
2A  
2B  
2Y  
GND  
V
CC  
15 OE  
1
2
3
4
5
6
7
8
16  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
4A  
4B  
14  
13  
12 4Y  
3A  
10 3B  
3Y  
description  
11  
These data selectors/multiplexers are designed  
9
to multiplex signals from 4-bit data sources to  
4-output data lines in bus-organized systems. The  
3-state outputs do not load the data lines when the  
output-enable (OE) input is at a high logic level.  
SN54ALS257A, SN54ALS258A . . . FK PACKAGE  
(TOP VIEW)  
The SN54ALS257A and SN54ALS258A are  
characterized for operation over the full military  
temperature range of −55°C to 125°C. The  
SN74ALS257A, SN74ALS258A, SN74AS257,  
and SN74AS258 are characterized for operation  
from 0°C to 70°C.  
3
2
1 20 19  
18  
4A  
4B  
NC  
4Y  
3A  
1B  
1Y  
NC  
2A  
2B  
4
5
6
7
8
17  
16  
15  
14  
9 10 11 12 13  
NC − No internal connection  
FUNCTION TABLE  
OUTPUT Y  
SN54ALS257A SN54ALS258A  
INPUTS  
DATA  
SN74ALS257A  
SN74AS257  
SN74ALS258A  
SN74AS258  
OE A/B  
A
B
H
L
L
L
L
X
L
X
L
X
X
X
L
Z
L
Z
H
L
L
H
X
X
H
L
H
H
H
L
H
H
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.  
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Copyright 1996, Texas Instruments Incorporated  
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ꢣ ꢧ ꢤ ꢣꢜ ꢝꢱ ꢟꢞ ꢢ ꢪꢪ ꢨꢢ ꢠ ꢢ ꢡ ꢧ ꢣ ꢧ ꢠ ꢤ ꢬ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...22

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 		SN74AS258AN
SN74AS258D TI

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 		QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74AS258D ROCHESTER

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 		AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDSO16, GREEN, PLASTIC, SOI
SN74AS258DE4 TI

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 		AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDSO16, GREEN, PLASTIC, SOI
SN74AS258DG4 TI

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 		AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDSO16, GREEN, PLASTIC, SOI
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 		IC,LOGIC MUX,QUAD,2-INPUT,AS-TTL,SOP,16PIN,PLASTIC

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