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Part Name
Description
74F544 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
View to exact match
74F544
Octal Registered Transceiver
Fairchild Semiconductor
74F544 Datasheet PDF : 6 Pages
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AC Electrical Characteristics
Symbol
Parameter
t
PLH
Propagation Delay
t
PHL
Transparent Mode
A
n
to B
n
or B
n
to A
n
t
PLH
Propagation Delay
t
PHL
LEBA to A
n
t
PLH
Propagation Delay
t
PHL
LEAB to B
n
t
PZH
Output Enable Time
t
PZL
OEBA or OEAB to A
n
or B
n
CEBA or CEAB to A
n
or B
n
t
PHZ
Output Disable Time
t
PLZ
OEBA or OEAB to A
n
or B
n
CEBA or CEAB to A
n
or B
n
T
A
= +
25
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Typ
Max
3.0
7.0
9.5
3.0
5.0
6.5
6.0
10.0
13.0
4.0
7.0
9.5
6.0
10.0
13.0
4.0
7.0
9.5
3.0
7.0
9.0
4.0
7.5
10.5
1.0
6.0
8.0
2.5
5.5
10.5
AC Operating Requirements
T
A
= −
55
°
C to
+
125
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Max
3.0
12.0
2.5
8.5
T
A
=
0
°
C to
+
70
°
C
V
CC
= +
5.0V
C
L
=
50 pF
Min
Max
3.0
10.5
3.0
7.5
6.0
18.0
6.0
14.5
4.0
11.5
4.0
10.5
6.0
18.0
6.0
14.5
4.0
11.5
4.0
10.5
3.0
11.0
3.0
10.0
4.0
13.0
4.0
12.0
2.0
10.0
1.0
9.0
2.0
9.5
2.5
11.5
Symbol
Parameter
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
t
W
(L)
Setup Time, HIGH or LOW
A
n
or B
n
to LEBA or LEAB
Hold Time, HIGH or LOW
A
n
or B
n
to LEBA or LEAB
Latch Enable, B to A
Pulse Width, LOW
T
A
= +
25
°
C
V
CC
= +
5.0V
Min
Max
3.0
3.0
3.0
3.0
6.0
T
A
= −
55
°
C to
+
125
°
C
V
CC
= +
5.0V
Min
Max
3.0
3.0
3.0
3.0
9.0
T
A
=
0
°
C to
+
70
°
C
V
CC
= +
5.0V
Min
Max
3.0
3.0
3.0
3.0
7.5
Units
ns
ns
ns
ns
Units
ns
ns
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