AC Electrical Characteristics
54AC
=
VCC
(V)
TA −55˚C
Fig.
No.
Symbol
Parameter
to +125˚C
Units
MHz
ns
=
CL 50 pF
(Note 8)
Min
55
Max
fmax
Maximum Clock
Frequency
3.3
5.0
3.3
5.0
75
tPLH
Propagation Delay
CP to Qn
1.0
1.5
15.0
12.0
(PE HIGH or LOW)
Propagation Delay
CP to Qn
tPHL
3.3
5.0
1.0
1.5
16.5
13.0
ns
ns
ns
ns
ns
ns
ns
(PE HIGH or LOW)
Propagation Delay
CP to TC
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.0
3.0
3.0
3.0
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
22.0
16.0
22.0
16.0
18.5
13.0
16.0
11.0
18.5
13.0
16.5
12.0
Propagation Delay
CP to TC
Propagation Delay
CET to TC
Propagation Delay
CET to TC
Propagation Delay
U/D to TC
Propagation Delay
U/D to TC
±
Note 8: Voltage Range 3.3 is 3.3V 0.3V
±
Voltage Range 5.0 is 5.0V 0.5V
AC Operating Requirements
54AC
=
VCC
(V)
TA −55˚C
Fig.
No.
Symbol
Parameter
to +125˚C
Units
=
(Note 9)
CL 50 pF
Guaranteed
Minimum
7.0
ts
Setup Time,
3.3
5.0
HIGH or LOW
Pn to CP
4.5
ns
ns
th
ts
Hold Time, HIGH or LOW
Pn to CP
3.3
5.0
3.3
5.0
2.0
2.5
Setup Time,
13.5
9.0
HIGH or LOW
CEP to CP
ns
ns
th
ts
Hold Time, HIGH or LOW
CEP to CP
3.3
5.0
3.3
5.0
0.5
2.5
Setup Time,
13.5
9.0
HIGH or LOW
CET to CP
ns
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