Features: • Multifunctional Capability• Two Completely Independent 1of4 Decoders• Active LOW Mutually Exclusive Outputs• Outputs Source/Sink 24 mA• 'ACT139 Has TTL Compatible InputsPinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Vo...
MC74AC139: Features: • Multifunctional Capability• Two Completely Independent 1of4 Decoders• Active LOW Mutually Exclusive Outputs• Outputs Source/Sink 24 mA• 'ACT139 Has TTL Comp...
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Features: Operating range: 38 to 47 Gb/s (min.) (note)Signal regeneration with full-rate clock sig...
Symbol |
Parameter |
Value |
Unit |
VCC |
DC Supply Voltage (Referenced to GND) |
0.5 to +7.0 |
V |
Vin |
DC Input Voltage (Referenced to GND) |
0.5 to VCC +0.5 |
V |
Vout |
DC Output Voltage (Referenced to GND) |
0.5 to VCC +0.5 |
V |
Iin |
DC Input Current, per Pin |
±20 |
mA |
Iout |
DC Output Sink/Source Current, per Pin |
±50 |
mA |
ICC |
DC VCC or GND Current per Output Pin |
±50 |
mA |
Tstg |
Storage Temperature |
65 to +150 |
The MC74AC139/74ACT139 is a highspeed, dual 1of4 decoder/demultiplexer. The device has two independent decoders, each accepting two inputs and providing four mutuallyexclusive activeLOW outputs. Each decoder has an activeLOW Enable input which can be used as a data input for a 4output demultiplexer. Each half of the MC74AC139/74ACT139 can be used as a function generator providing four minterms of two variables.