參數(shù)資料
型號: 74ACT139SC
廠商: Fairchild Semiconductor
文件頁數(shù): 2/9頁
文件大小: 0K
描述: IC DECODER/DEMUX DL 1OF4 16-SOIC
標(biāo)準(zhǔn)包裝: 48
系列: 74ACT
類型: 解碼器/多路分解器
電路: 1 x 2:4
獨立電路: 2
輸出電流高,低: 24mA,24mA
電壓電源: 單電源
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 管件
產(chǎn)品目錄頁面: 1206 (CN2011-ZH PDF)
www.fairchildsemi.com
2
74AC139
74ACT139
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 (A0–A1)
and provides four mutually exclusive active-LOW outputs
(O0–O3). 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
A0
A1
O0
O1
O2
O3
H
X
HHHH
L
LLL
H
L
H
LH
H
L
HHH
L
H
L
HHHHH
L
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參數(shù)描述
74ACT139SC_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
74ACT139SCX 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
74ACT139SJ 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
74ACT139SJX 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
74ACT14AFN 制造商:NA 功能描述: 制造商:Toshiba America Electronic Components 功能描述: