參數(shù)資料
型號: 74AC139SC
廠商: Fairchild Semiconductor
文件頁數(shù): 2/9頁
文件大?。?/td> 0K
描述: IC DECODER/DEMULTIPLEXER 16-SOIC
標準包裝: 48
系列: 74AC
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: 2 V ~ 6 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)
供應商設備封裝: 16-SOIC
包裝: 管件
產品目錄頁面: 1205 (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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相關代理商/技術參數(shù)
參數(shù)描述
74AC139SC_Q 功能描述:編碼器、解碼器、復用器和解復用器 Dl 1-of-4 Dec/Demul RoHS:否 制造商:Micrel 產品: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
74AC139SCQR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-To-4-Line Demultiplexer
74AC139SCX 功能描述:編碼器、解碼器、復用器和解復用器 Dl 1-of-4 Dec/Demul RoHS:否 制造商:Micrel 產品: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
74AC139SCX-CUT TAPE 制造商:FAIRCHILD 功能描述:74AC139 Series 6 V Surface Mount Dual 1-of-4 Decoder/Demultiplexer - SOIC-16
74AC139SJ 功能描述:編碼器、解碼器、復用器和解復用器 Dl 1-of-4 Dec/Demul RoHS:否 制造商:Micrel 產品: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