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74AC139 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. 74AC139
Description  Dual 1−of−4 Decoder/Demultiplexer
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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74AC139 Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 7
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.
Multifunctional Capability
Two Completely Independent 1−of−4 Decoders
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
′ACT139 Has TTL Compatible Inputs
w These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
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
http://onsemi.com
DIP−16
N SUFFIX
CASE 648
1
16
SO−16
D SUFFIX
CASE 751B
1
16
Device
Package
Shipping
ORDERING INFORMATION
MC74AC139N
PDIP−16
25 Units/Rail
MC74AC139D
SOIC−16
48 Units/Rail
MC74AC139DR2
2500 Tape & Reel
TSSOP−16
DT SUFFIX
CASE 948F
MC74AC139DT
TSSOP−16
96 Units/Rail
MC74AC139DTR2 TSSOP−16
SOIC−16
2500 Tape & Reel
MC74ACT139N
PDIP−16
25 Units/Rail
MC74ACT139D
SOIC−16
48 Units/Rail
MC74ACT139DR2
2500 Tape & Reel
MC74ACT139DT
TSSOP−16
96 Units/Rail
SOIC−16
1
16
See general marking information in the device marking
section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
1
16
EIAJ−16
M SUFFIX
CASE 966
MC74AC139M
EIAJ−16
MC74AC139MEL
EIAJ−16
2000 Tape & Reel
MC74ACT139M
EIAJ−16
MC74ACT139MEL
EIAJ−16
2000 Tape & Reel
50 Units/Rail
50 Units/Rail


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