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MC74AC139DG データシート(PDF) 1 Page - ON Semiconductor

部品番号 MC74AC139DG
部品情報  Dual 1-of-4 Decoder/Demultiplexer
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メーカー  ONSEMI [ON Semiconductor]
ホームページ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC74AC139DG データシート(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 8
1
Publication Order Number:
MC74AC139/D
MC74AC139, MC74ACT139
Dual 1-of-4
Decoder/Demultiplexer
The MC74AC139/74ACT139 is a high−speed, dual 1−of−4
decoder/demultiplexer. The device has two independent decoders,
each accepting two inputs and providing four mutually−exclusive
active−LOW outputs. Each decoder has an active−LOW Enable input
which can be used as a data input for a 4−output demultiplexer. Each
half of the MC74AC139/74ACT139 can be used as a function
generator providing four minterms of two variables.
Features
Multifunctional Capability
Two Completely Independent 1−of−4 Decoders
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
′ACT139 Has TTL Compatible Inputs
These are Pb−Free Devices
15
16
14
13
12
11
10
2
1
3
4
567
VCC
9
8
Eb
A0b
A1b
Ea
GND
O0b
O1b
O2b
O3b
A0a
A1a
O0a
O1a
O2a
O3a
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
FUNCTION
A0, A1
Address Inputs
E
Enable Inputs
O0−O3
Outputs
TRUTH TABLE
Inputs
Outputs
E
A0
A1
O0
O1
O2
O3
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
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
www.onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
1
16
1
16
MARKING
DIAGRAMS
xxx
= AC or ACT
A
= Assembly Location
WL or L
= Wafer Lot
Y
= Year
WW or W = Work Week
G or
G
= Pb−Free Package
1
16
xxx139G
AWLYWW
xxx
139
ALYW
G
G
1
16
(Note: Microdot may be in either location)


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