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Номер в каталоге
Компоненты Описание
74F640 Просмотр технического описания (PDF) - Fairchild Semiconductor
Номер в каталоге
Компоненты Описание
производитель
74F640
Octal Bus Transceiver with 3-STATE Outputs
Fairchild Semiconductor
74F640 Datasheet PDF : 6 Pages
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AC Electrical Characteristics
74F640
Symbol
Parameter
t
PLH
Propagation Delay
t
PHL
A Input to B Output
t
PLH
Propagation Delay
t
PHL
B Input to A Output
t
PZH
Enable Time
t
PZL
OE Input to A Output
t
PHZ
Disable Time
t
PLZ
OE Input to A Output
t
PZH
Enable Time
t
PZL
OE Input to B Output
t
PHZ
Disable Time
t
PLZ
OE Input to B Output
T
A
= +
25
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Typ
Max
2.5
7.5
2.0
7.0
2.5
7.5
2.0
7.0
2.5
7.5
2.5
8.0
1.5
7.0
1.5
6.0
2.5
7.5
2.5
8.0
1.5
7.0
1.5
6.0
AC Electrical Characteristics
74F645
Symbol
Parameter
t
PLH
Propagation Delay
t
PHL
A Input to B Output
t
PLH
Propagation Delay
t
PHL
B Input to A Output
t
PZH
Enable Time
t
PZL
OE Input to A Output
t
PHZ
Disable Time
t
PLZ
OE Input to A Output
t
PZH
Enable Time
t
PZL
OE Input to B Output
t
PHZ
Disable Time
t
PLZ
OE Input to B Output
T
A
= +
25
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Typ
Max
1.5
6.0
2.0
7.0
1.5
6.0
2.0
7.0
2.5
8.0
2.5
8.5
1.5
7.0
1.0
5.5
2.5
7.5
2.5
8.5
1.5
6.5
1.0
5.5
T
A
=
0
°
C to
+
70
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Max
2.0
8.0
2.0
7.0
2.0
8.0
2.0
7.0
2.0
9.0
2.0
8.5
1.0
7.5
1.5
6.0
2.0
9.0
2.0
8.5
1.0
7.5
1.5
6.0
Units
ns
ns
ns
ns
T
A
=
0
°
C to
+
70
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Max
1.5
7.0
2.0
7.5
1.5
7.0
2.0
7.5
2.0
9.0
2.0
8.5
1.0
8.0
1.0
5.5
2.0
9.5
2.5
9.0
1.0
7.5
1.0
5.5
Units
ns
ns
ns
ns
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