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74F174
AC Electrical Characteristics
AC Operating Requirements
Symbol Parameter
T
A
= +25°CT
A
= −55°C to +125°CT
A
= 0°C to +70°C
Units
V
CC
= +5.0V V
CC
= +5.0V V
CC
= +5.0V
C
L
= 50 pF C
L
= 50 pF C
L
= 50 pF
Min Typ Max Min Max Min Max
f
MAX
Maximum Clock Frequency 80 70 80 MHz
t
PLH
Propagation Delay 3.5 5.5 8.0 3.0 10.0 3.5 9.0
ns
t
PHL
CP to Q
n
4.0 7.0 10.0 4.0 12.0 4.0 11.0
t
PHL
Propagation Delay
5.0 10.0 14.0 5.0 16.0 5.0 15.0 ns
MR
to Q
n
Symbol Parameter
T
A
= +25°CT
A
= −55°C to +125° T
A
= 0°C to +70°C
UnitsV
CC
= +5.0V V
CC
= +5.0V V
CC
= +5.0V
Min Max Min Max Min Max
t
S
(H) Setup Time, HIGH or LOW 4.8 5.0 4.8
ns
t
S
(L) D
n
to CP 4.0 5.0 4.0
t
H
(H) Hold Time, HIGH or LOW 0 2.0 0
t
H
(L) D
n
to CP 0 2.0 0
t
W
(H) CP Pulse Width 4.0 5.0 4.0
ns
t
W
(L) HIGH or LOW 6.0 7.5 6.0
t
W
(L) MR Pulse Width, LOW 5.0 6.5 5.0 ns
t
REC
Recovery Time, MR to CP 5.0 6.0 5.0
