參數(shù)資料
型號： MC74ACT138MEL
廠商： ON SEMICONDUCTOR
元件分類： 通用總線功能
英文描述： 1−of−8 Decoder/Demultiplexer
中文描述： ACT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封裝： PLASTIC, EIAJ, SOP-16
文件頁數(shù)： 2/11頁
文件大?。?/td> 198K
代理商： MC74ACT138MEL
MC74AC138, MC74ACT138
http://onsemi.com
2
FUNCTIONAL DESCRIPTION
The MC74AC138/74ACT138 high
speed 1
of
8
decoder/demultiplexer accepts three binary weighted inputs
(A
0
, A
1
, A
2
) and, when enabled, provides eight mutually
exclusive
active
LOW
MC74AC138/74ACT138 features three Enable inputs, two
active
LOW (E
1
, E
2
) and one active
HIGH (E
3
). All
outputs will be HIGH unless E
1
and E
2
are LOW and E
3
is
outputs
(O
0
O
7
).
The
HIGH. This multiple enabled function allows easy parallel
expansion of the device to a 1
of
32 (5 lines to 32 lines)
decoder with just four MC74AC138/74ACT138 devices
and
one
inverter
(See
MC74AC138/74ACT138 can be used as an 8
output
demultiplexer by using one of the active LOW Enable inputs
as the data input and the other Enable inputs as strobes. The
Enable inputs which are not used must be permanently tied
to their appropriate active
HIGH or active
LOW state.
Figure
4).
The
TRUTH TABLE
Inputs
Outputs
E
1
E
2
E
3
A
0
A
1
A
2
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
H
X
X
X
H
X
X
X
L
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
L
L
L
L
L
L
L
L
H
H
H
H
L
H
L
H
L
L
H
H
L
L
L
L
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
L
H
L
H
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
A
2
A
1
A
0
E
3
E
1
E
2
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
NOTE:
This diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation
delays.
Figure 3. Logic Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC74ACT138ML1 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC74ACT138N 功能描述:編碼器、解碼器、復用器和解復用器 5V 1-of-8 Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
MC74ACT138NAWLYYWW 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1−of−8 Decoder/Demultiplexer
MC74ACT138NG 功能描述:編碼器、解碼器、復用器和解復用器 5V 1-of-8 Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
MC74ACT139 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Dual 1−of−4 Decoder/Demultiplexer
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