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Número de pieza
componentes Descripción
DM74LS645WM Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
DM74LS645WM
Octal Bus Transceiver
Fairchild Semiconductor
DM74LS645WM Datasheet PDF : 5 Pages
1
2
3
4
5
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Symbol
Parameter
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t
PZL
Output Enable Time
to LOW Level
t
PZH
Output Enable Time
to HIGH Level
t
PZL
Output Enable Time
to LOW Level
t
PZH
Output Enable Time
to HIGH Level
t
PLZ
Output Disable Time
to LOW Level
t
PHZ
Output Disable Time
to HIGH Level
t
PLZ
Output Disable Time
to LOW Level
t
PHZ
Output Disable Time
to HIGH Level
From (Input)
To (Output)
A to B
A to B
B to A
B to A
G to A
G to A
G to B
G to B
G to A
G to A
G to B
G to B
R
L
=
667
Ω
C
L
=
45 pF
C
L
=
5 pF
Min
Max
Min
Max
15
15
15
15
40
40
40
40
25
25
25
25
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
3
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