MC74AC139_06 Datasheet, PDF (1/11 Pages) ON Semiconductor – Dual 1−of−4 Decoder/Demultiplexer

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.
V_CC E_b A_0b A_1b O_0b O_1b O_2b O_3b
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
E_a A_0a A_1a O_0a O_1a O_2a O_3a 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, 2006
1
March, 2006 − Rev. 7
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