accepts three binary wei" />
參數(shù)資料
型號(hào): 74LVX138MX
廠商: Fairchild Semiconductor
文件頁(yè)數(shù): 2/7頁(yè)
文件大?。?/td> 0K
描述: DECODER/DEMUX 1-OF-8 LV 16SOIC
標(biāo)準(zhǔn)包裝: 2,500
系列: 74LVX
類型: 解碼器/多路分解器
電路: 1 x 3:8
獨(dú)立電路: 1
輸出電流高,低: 4mA,4mA
電壓電源: 單電源
電源電壓: 2 V ~ 3.6 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(yīng)商設(shè)備封裝: 16-SOIC
包裝: 帶卷 (TR)
www.fairchildsemi.com
2
74
L
VX138
Functional Description
The LVX138 high-speed 1-of-8 decoder/demultiplexer
accepts three binary weighted inputs (A0, A1, A2) and,
when enabled, provides eight mutually exclusive active-
LOW outputs (O0–O7). The LVX138 features three Enable
inputs, two active-LOW (E1, E2) and one active-HIGH (E3).
All outputs will be HIGH unless E1 and E2 are LOW and E3
is HIGH.
The LVX138 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.
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial
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
E1
E2
E3
A0
A1
A2
O0
O1
O2
O3
O4
O5
O6
O7
H
X
HHH
HH
X
H
X
HHH
HH
X
L
X
HHH
HH
L
H
L
H
HHH
HH
L
H
L
H
L
H
HHH
HH
L
H
L
H
L
HH
L
HHH
HH
L
HH
H
L
H
L
H
HH
H
L
H
L
H
HHH
H
L
H
L
H
L
H
HHH
HH
L
H
L
H
L
HH
HHH
L
H
L
H
HHH
H
L
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