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DM54LS139E Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM54LS139E
Description  Decoders/Demultiplexers
Download  8 Pages
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DM54LS139E Datasheet(HTML) 3 Page - National Semiconductor (TI)

   
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’LS138 Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
Levels
RL e 2kX
Symbol
Parameter
To (Output)
of Delay
CL e 15 pF
CL e 50 pF
Units
Min
Max
Min
Max
tPLH
Propagation Delay Time
Select to
218
27
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Select to
227
40
ns
High to Low Level Output
Output
tPLH
Propagation Delay Time
Select to
318
27
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Select to
327
40
ns
High to Low Level Output
Output
tPLH
Propagation Delay Time
Enable to
218
27
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Enable to
224
40
ns
High to Low Level Output
Output
tPLH
Propagation Delay Time
Enable to
318
27
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Enable to
328
40
ns
High to Low Level Output
Output
Recommended Operating Conditions
Symbol
Parameter
DM54LS139
DM74LS139
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
45
5
55
475
5
525
V
VIH
High Level Input Voltage
2
2
V
VIL
Low Level Input Voltage
07
08
V
IOH
High Level Output Current
b
04
b
04
mA
IOL
Low Level Output Current
4
8
mA
TA
Free Air Operating Temperature
b
55
125
0
70
C
3


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