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MC74AC139DONN/a10avaiDual 1-of-4 Decoder/Demultiplexer
MC74AC139DR2MOTN/a32500avaiDual 1-of-4 Decoder/Demultiplexer
MC74AC139DTR2ONN/a46avaiDual 1-of-4 Decoder/Demultiplexer
MC74ACT139MOTON/a3912avaiDual 1-of-4 Decoder/Demultiplexer
MC74ACT139DR2MOTN/a1450avaiDual 1-of-4 Decoder/Demultiplexer
MC74ACT139NONN/a300avaiDual 1-of-4 Decoder/Demultiplexer


MC74AC139DR2 ,Dual 1-of-4 Decoder/DemultiplexerMAXIMUM RATINGS* Symbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) –0.5 to +7.0 V ..
MC74AC139DTR2 ,Dual 1-of-4 Decoder/DemultiplexerFUNCTIONAL DESCRIPTIONA A0 O 0 O0 0The MC74AC139/74ACT139 is a high–speed dualA A1 11–of–4 decoder/ ..
MC74AC139N ,Dual 1-of-4 Decoder/DemultiplexerFUNCTIONAL DESCRIPTIONEEThe MC74AC139/74ACT139 is a high-speed dual 1-of-4A AO Odecoder/demultiplex ..
MC74AC14 ,Hex Inverter Schmitt TriggerMAXIMUM RATINGS*Symbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) –0.5 to +7.0 VCC ..
MC74AC14D ,HEX INVERTER SCHMITT TRIGGERMaximum Ratings are those values beyond which damage to the device may occur. Functional operation ..
MC74AC14D ,HEX INVERTER SCHMITT TRIGGERMAXIMUM RATINGS*Symbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) –0.5 to +7.0 VCC ..
MCM69R737AZP7 ,4M Late Write LVTTL**Order this documentSEMICONDUCTOR TECHNICAL DATAby MCM69R737A/DMCM69R737AAdvance InformationMCM69R ..
MCM69R737AZP8 ,4M Late Write LVTTL**Order this documentSEMICONDUCTOR TECHNICAL DATAby MCM69R737A/DMCM69R737AAdvance InformationMCM69R ..
MCM69R819AZP7 ,4M Late Write LVTTL**Order this documentSEMICONDUCTOR TECHNICAL DATAby MCM69R737A/DMCM69R737AAdvance InformationMCM69R ..
MCM69T618TQ5 ,64K x 18 Bit Synchronous Pipelined Cache Tag RAM**Order this documentby MCM69T618/DSEMICONDUCTOR TECHNICAL DATAMCM69T61864K x 18 Bit SynchronousPip ..
MCM7643APC ,V(cc): +7.0V; 650mA; 4096-bit programmable read only memoryElectrical Characteristics and ProgrammingProcedureq Simple, High-Speed Programming Procedure(1.0 S ..
MCM7643DC ,V(cc): +7.0V; 650mA; 4096-bit programmable read only memoryelectrical characteristics and identical program-ming requirements. They are fully decoded, high-sp ..


MC74AC139D-MC74AC139DR2-MC74AC139DTR2-MC74ACT139-MC74ACT139DR2-MC74ACT139N
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
VCC A0b A1b GND
O0b O1b O2b O3b
A0a A1a O0a O1a O2a O3a
Figure 1. Pinout: 16–Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
TRUTH TABLE

H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
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