Features: • Demultiplexing capability• Two independent 1-of-4 decoders• Multi-function capabilityPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply voltage 0.5 to +7.0 V VIN Input voltage 0.5 to +7.0 V IIN Input current 3...
74ALS139: Features: • Demultiplexing capability• Two independent 1-of-4 decoders• Multi-function capabilityPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply ...
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Buffers & Line Drivers 16-Bit Buffer/Driver With 3-State Outputs
SYMBOL |
PARAMETER |
RATING |
UNIT |
VCC |
Supply voltage |
0.5 to +7.0 |
V |
VIN |
Input voltage |
0.5 to +7.0 |
V |
IIN |
Input current |
30 to +5 |
mA |
VOUT |
Voltage applied to output in High output state |
0.5 to VCC |
V |
IOUT |
Current applied to output in Low output state |
16 |
mA |
Tamb |
Operating free-air temperature range |
0 to +70 |
|
Tstg |
Storage temperature range |
65 to +150 |
|
The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (A0n, A1n) and providing four mutually exclusive active-Low outputs (Q0nQ3n). Each decoder of the 74ALS139 has an active-Low enable (E). When E is High, every output is forced High. The enable can be used as the data input for a 1-of-4 demultiplexer application.