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參數(shù)資料
| 型號： | 74157 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Quad 2-Line to 1-Line Data Selectors/Multiplexers |
| 中文描述： | 四2線1線數(shù)據(jù)選擇器/多路復用器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 118K |
| 代理商： | 74157 |
TL/F/6550
5
June 1989
54157/DM54157/DM74157
Quad 2-Line to 1-Line Data Selectors/Multiplexers
General Description
These data selectors/multiplexers contain inverters and
drivers to supply full on-chip data selection to the four out-
put gates. A separate strobe input is provided. A 4-bit word
is selected from one of two sources and is routed to the four
outputs.
Applications
Y
Expand any data input point
Y
Multiplex dual data buses
Y
Generate four functions of two variables (one variable
is common)
Y
Source programmable counters
Features
Y
Buffered inputs and outputs
Y
Typical propagation time 9 ns
Y
Typical power dissipation 150 mW
Y
Alternate Military/Aerospace device (54157) is avail-
able. Contact a National Semiconductor Sales Office/
Distributor for specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6550–1
Order Number 54157DMQB, 54157FMQB, DM54157J, DM54157W or DM74157N
See NS Package Number J16A, N16E or W16A
Function Table
Inputs
Output Y
Strobe
Select
A
B
H
L
L
L
L
X
L
L
H
H
X
L
H
X
X
X
X
X
L
H
L
L
H
L
H
H
e
High Level, L
e
Low Level, X
e
Don’t Care
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
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相關代理商/技術參數(shù) |
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|---|---|
| 74157 WAF | 制造商:Texas Instruments 功能描述: |
| 74157PCQR | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74158 | 功能描述:BIT POWER PHILLIPS #0 2.00" 制造商:wiha 系列:- 零件狀態(tài):在售 工具類型:刀頭，電動 尖頭 - 類型:十字 尖頭 - 尺寸:#0 驅(qū)動器大小:1/4" 長度 - 總:2.00"（50.8mm） 特性:防撞擊 數(shù)量:2 重量:- 標準包裝:1 |
| 74158N | 制造商:NXP Semiconductors 功能描述: |
| 74159 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-LINE TO 16-LINE DECODERS/MEMULTIPLEXERS WITH OPEN-COLLECTOR OUTPUTS |
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