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參數(shù)資料
| 型號(hào)： | 74ACT139MTC |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual 1-of-4 Decoder/Demultiplexer |
| 中文描述： | ACT SERIES, OTHER DECODER/DRIVER, PDSO16 |
| 封裝： | TSSOP-16 |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 61K |
| 代理商： | 74ACT139MTC |
HD74AC139/HD74ACT139
3
Logic Diagram
O
3b
O
2b
O
1b
O
0b
O
3a
O
2a
O
1a
O
0a
E
a
E
b
A
0a
A
1a
A
0b
A
1b
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
Functional Description
The HD74AC139/HD74ACT139 is a high-speed dual 1-of-4 decoder/demultiplexer. The device has two
independent decoders, each of which accepts two binary weighted inputs (A
0
to A
1
) and provides four
mutually exclusive active-Low outputs (
O
0
to
O
3
). Each decoder has an active-Low enable (
E
). When
E
is
High all outputs are forced High. The enable can be used as the data input for a 4-output demultiplexer
application. Each half of the HD74AC139/HD74ACT139 generates all four minterms of two variables.
These four minterms are useful in some applications, replacing multiple gate functions as shown in Figure
a, and thereby reducing the number of packages required in a logic network.
Truth Table
Inputs
E
Outputs
O
0
H
A
0
X
A
1
X
O
1
H
O
2
H
O
3
H
H
L
L
L
L
H
H
H
L
H
L
H
L
H
H
L
L
H
H
H
L
H
L
H :
L
X :
H
H
H
H
H
L
High Voltage Level
Low Voltage Level
Immaterial
:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74ACT139 | Dual 1-of-4 Decoder/Demultiplexer |
| 74ACT139PC | Dual 1-of-4 Decoder/Demultiplexer |
| 74ACT139SC | Dual 1-of-4 Decoder/Demultiplexer |
| 74ACT139SJ | Dual 1-of-4 Decoder/Demultiplexer |
| 74ACT139MTCX | 2-To-4-Line Demultiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74ACT139MTC_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 1-of-4 Dec/Dem 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(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74ACT139MTCX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 1-of-4 Dec/Dem 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(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74ACT139PC | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 1-of-4 Dec/Dem 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(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74ACT139PC_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 1-of-4 Dec/Dem 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(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74ACT139SC | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 1-of-4 Dec/Dem 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(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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