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54LS42 Fiches technique(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce 54LS42
Description  Decimal Decoders
PDF  6 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

54LS42 Fiches technique(HTML) 3 Page - National Semiconductor (TI)

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Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 2kX
Symbol
Parameter
To (Output)
CL e 15 pF
CL e 50 pF
Units
Min
Max
Min
Max
tPHL
Propagation Delay Time
A B C or D (2 Levels
25
30
ns
High to Low Level Output
of Logic) to Output
tPHL
Propagation Delay Time
A B C or D (3 Levels
30
35
ns
High to Low Level Output
of Logic) to Output
tPLH
Propagation Delay Time
A B C or D (2 Levels
25
30
ns
Low to High Level Output
of Logic) to Output
tPLH
Propagation Delay Time
A B C or D (3 Levels
30
35
ns
Low to High Level Output
of Logic) to Output
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