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MC74AC139DR2 View Datasheet(PDF) - ON Semiconductor

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MC74AC139DR2
ON-Semiconductor
ON Semiconductor ON-Semiconductor
MC74AC139DR2 Datasheet PDF : 12 Pages
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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
VCC Eb A0b A1b O0b O1b O2b O3b
16 15 14 13 12 11 10 9
http://onsemi.com
16
1
16
1
16
1
DIP–16
N SUFFIX
CASE 648
SO–16
D SUFFIX
CASE 751B
TSSOP–16
DT SUFFIX
CASE 948F
12345678
Ea A0a A1a O0a O1a O2a O3a GND
Figure 1. Pinout: 16–Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
FUNCTION
A0, A1
E
Address Inputs
Enable Inputs
O0–O3
Outputs
TRUTH TABLE
Inputs
Outputs
E A0 A1 O0 O1 O2
O3
HXX H H H
H
LLL
L HH
H
LHL H L H
H
LLH H H L
H
LHH H H H
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
© Semiconductor Components Industries, LLC, 2002
1
July, 2002 – Rev. 6
16
1
EIAJ–16
M SUFFIX
CASE 966
ORDERING INFORMATION
Device
Package
Shipping
MC74AC139N
PDIP–16 25 Units/Rail
MC74ACT139N
MC74AC139D
PDIP–16
SOIC–16
25 Units/Rail
48 Units/Rail
MC74ACT139D
MC74AC139DR2
SOIC–16 48 Units/Rail
SOIC–16 2500 Tape & Reel
MC74ACT139DR2 SOIC–16 2500 Tape & Reel
MC74AC139DT TSSOP–16 96 Units/Rail
MC74ACT139DT TSSOP–16 96 Units/Rail
MC74AC139DTR2 TSSOP–16 2500 Tape & Reel
MC74AC139M
EIAJ–16
50 Units/Rail
MC74ACT139M
EIAJ–16
50 Units/Rail
MC74AC139MEL EIAJ–16 2000 Tape & Reel
MC74ACT139MEL EIAJ–16 2000 Tape & Reel
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
Publication Order Number:
MC74AC139/D
 

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