AC Electrical Characteristics
74AC
54AC
e b
74AC
e b
T
55 C
T
40 C
§
§
A
A
e a
A
V
*
T
25 C
§
50 pF
CC
a
a
Symbol
Parameter
to 125 C
to 85 C
Units
§
50 pF
§
50 pF
e
(V)
C
L
e
e
C
C
L
L
Min
Typ
Max
Min
Max
Min
Max
t
t
t
t
t
t
Propagation Delay
Data to Output
3.3
5.0
1.0
1.0
6.5
5.5
9.0
7.0
1.0
1.0
10.0
7.5
PLH
PHL
PZH
PZL
PHZ
PLZ
ns
ns
ns
ns
ns
ns
Propagation Delay
Data to Output
3.3
5.0
1.0
1.0
6.5
5.0
9.0
7.0
1.0
1.0
10.0
7.5
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
3.3
5.0
1.0
1.0
6.0
5.0
10.5
7.0
1.0
1.0
11.0
8.0
3.3
5.0
1.0
1.0
7.5
5.5
10.0
8.0
1.0
1.0
11.0
8.5
3.3
5.0
1.0
1.0
7.5
6.5
10.0
9.0
1.0
1.0
10.5
9.5
3.3
5.0
1.0
1.0
7.5
6.5
10.5
9.0
1.0
1.0
11.5
9.5
g
*Voltage Range 3.3 is 3.3V 0.3V
g
Voltage Range 5.0 is 5.0V 0.5V
AC Electrical Characteristics
74ACT
74ACT
e b
T
40 C
§
to 85 C
A
e a
A
V
*
T
25 C
§
50 pF
CC
a
Symbol
Parameter
Units
§
50 pF
e
(V)
C
L
e
C
L
Min
Typ
Max
Min
Max
t
t
Propagation Delay
Data to Output
PLH
PHL
5.0
5.0
1.0
6.5
7.0
9.0
1.0
10.0
10.0
ns
ns
Propagation Delay
Data to Output
1.0
9.0
1.0
t
t
t
t
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
5.0
5.0
5.0
5.0
1.0
1.0
1.0
1.0
6.0
7.0
7.0
7.5
8.5
9.5
1.0
1.0
1.0
1.0
9.5
ns
ns
ns
ns
PZH
PZL
PHZ
PLZ
10.5
10.5
10.5
9.5
10.0
g
*Voltage Range 5.0 is 5.0V 0.5V
Capacitance
AC/ACT
Symbol
Parameter
Units
Conditions
Typ
e
e
C
C
Input Capacitance
4.5
pF
pF
V
V
OPEN
5.0V
IN
CC
Power Dissipation
Capacitance
PD
CC
45.0
4
NSC [ National Semiconductor ]
