AC Electrical Characteristics
74ACT
54ACT
e b
74ACT
e b
40 C
T
55 C
§
T
§
A
to 125 C
A
e a
T
C
25 C
§
A
a
a
Symbol
Parameter
V *
CC
(V)
to 85 C
50 pF
Units
§
§
e
50pF
L
e
e
C
50 pF
C
L
L
Min
Typ
Max
Min
Max
Min
Max
f
t
t
t
t
t
t
t
Maximum Clock
Frequency
max
PLH
PHL
PHL
PZH
PZL
PHZ
PLZ
5.0
5.0
5.0
120
158
95
109
MHz
ns
Propagation Delay
CP to O
1.5
2.0
2.5
1.5
2.0
1.5
1.5
5.5
5.5
8.0
6.0
6.5
6.5
6.0
9.5
9.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
12.0
12.0
18.0
11.5
12.0
13.5
12.0
1.5
1.5
2.0
1.5
1.5
1.5
1.5
10.5
10.5
15.5
11.5
12.0
12.0
11.5
n
Propagation Delay
CP to O
ns
n
Propagation Delay
CLR to O
5.0
5.0
13.5
10.5
11.0
11.0
10.5
ns
n
Output Enable Time
OE to O
ns
n
Output Enable Time
OE to O
5.0
5.0
5.0
ns
n
Output Disable Time
OE to O
ns
n
Output Disable Time
OE to O
ns
n
g
*Voltage Range 5.0 is 5.0V 0.5V
AC Operating Requirements
74ACT
54ACT
e b
74ACT
e b
40 C
T
55 C
§
T
§
A
to 125 C
A
e a
T
C
25 C
§
A
a
a
V *
CC
(V)
to 85 C
§
§
e
Symbol
Parameter
50 pF
Units
L
e
e
50 pF
C
50 pF
C
L
L
Typ
Guaranteed Minimum
t
t
t
t
t
Setup Time, HIGH or LOW
D to CP
s
5.0
5.0
5.0
5.0
0.5
2.5
4.0
2.5
ns
ns
ns
ns
Hold Time, HIGH or LOW
to CP
h
s
0
0
0
2.5
2.0
1.0
3.0
4.0
3.0
2.5
2.5
1.0
D
n
Setup Time, HIGH or LOW
EN to CP
Hold Time, HIGH or LOW
EN to CP
h
w
CP Pulse Width
HIGH or LOW
5.0
5.0
5.0
2.5
3.0
1.5
4.5
5.5
3.5
6.0
7.0
4.5
5.5
5.5
4.0
ns
ns
ns
t
t
CLR Pulse Width, LOW
w
CLR to CP
Recovery Time
rec
g
*Voltage Range 5.0 is 5.0V 0.5V
Capacitance
Symbol
Parameter
Typ
Units
Conditions
e
e
C
C
Input Capacitance
4.5
pF
pF
V
OPEN
5.0V
IN
CC
CC
Power Dissipation
Capacitance
PD
44
V
4