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參數資料
| 型號： | KK74LS138N |
| 廠商： | KODENSHI CORP. |
| 英文描述： | 3-to-8-Line Decoder/Demultiplexer |
| 中文描述： | 3至8線譯碼器/解復用器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 221K |
| 代理商： | KK74LS138N |
TECHNICAL DATA
KK
74LS138
3-to-8-Line Decoder/Demultiplexer
ORDERING INFORMATION
KK
74LS138N Plastic
KK
74LS138D SOIC
T
A
= 0
°
to 70
°
C for all packages
This schottky-clamped TTL MSI circuit is designed to be used in
high-performance memory-decording or data-routing applications
requiring very short propagation delay time. In high-performance
memory systems this decode can be used to minimize the effects of
system decoding. When employed with high-speed memories utilizing a
fast enable circuit the delay times of this decorder and the enable time of
the memory are usually less than the typical access times of the memory.
This means that the effective system delay introduced by the schottky-
clampled system decoder is negligible.
Designed Specifically for High Speed Memory Decoders and Data
Transmission Systems
Incorporate 3 Enabler Inputs to Simplify Cascading AND/OR Data
Reception
Schottky Clamped for High Performance
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
CS1 CS2 CS3
A2 A1 A0
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H
X H X
L X X
X X X
X X X
X X X
H H H H H H H H
H H H H H H H H
H H H H H H H H
H L L
H L L
H L L
H L L
L L L
L L H
L H L
L H H
L H H H H H H H
H L H H H H H H
H H L H H H H H
H H H L H H H H
H L L
H L L
H L L
H L L
H L L
H L H
H H L
H H H
H H H H L H H H
H H H H H L H H
H H H H H H L H
H H H H H H H L
H = high level (steady state)
L = low level (steady state)
X = don’t care
1
相關PDF資料 |
PDF描述 |
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| KK74LS14 | Hex Schmitt-Trigger Inverter |
| KK74LS14D | Hex Schmitt-Trigger Inverter |
| KK74LS14N | Hex Schmitt-Trigger Inverter |
| KK74LS157 | Quad 2-Input Data Selector/Multiplexer |
| KK74LS157D | Quad 2-Input Data Selector/Multiplexer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| KK74LS14 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
| KK74LS14D | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
| KK74LS14N | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
| KK74LS157 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Quad 2-Input Data Selector/Multiplexer |
| KK74LS157D | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Quad 2-Input Data Selector/Multiplexer |
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