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參數(shù)資料
| 型號： | 74AC139SJ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal D-type transparent latches 20-SO 0 to 70 |
| 中文描述： | AC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封裝： | 5.30 MM, EIAJ TYPE2, SOIC-16 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大小： | 98K |
| 代理商： | 74AC139SJ |
www.fairchildsemi.com
2
7
Logic Symbols
IEEE/IEC
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Functional Description
The AC/ACT139 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
–
A
1
)
and provides four mutually exclusive active-LOW outputs
(O
0
–
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 AC/ACT139 generates all four
minterms of two variables. These four minterms are useful
in some applications, replacing multiple gate functions as
shown in Figure 1, and thereby reducing the number of
packages required in a logic network.
FIGURE 1. Gate Functions (Each Half)
Logic Diagram
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
Inputs
Outputs
E
A
0
A
1
O
0
O
1
O
2
O
3
H
X
X
H
H
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
H
H
H
H
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74AC139SJ_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dl 1-of-4 Dec/Demul 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74AC139SJX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dl 1-of-4 Dec/Demul 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74AC14 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Hex Inverter Schmitt Trigger |
| 74AC14B | 功能描述:變換器 Hex Schmitt Trig Inv RoHS:否 制造商:NXP Semiconductors 電路數(shù)量:6 邏輯系列:74ABT 邏輯類型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube |
| 74AC14DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hex Inverter |
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