MC74AC574, MC74ACT574
http://onsemi.com
4
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
Symbol Parameter
V
CC
*
(V)
74AC 74AC
Unit
Fig.
No.
T
A
= +25°C
C
L
= 50 pF
T
A
= −40°C to +85°C
C
L
= 50 pF
Min Typ Max Min Max
f
max
Maximum Clock
3.3 75 − − 60 −
MHz 3−3
Frequency 5.0 95 − − 85 −
t
PLH
Propagation Delay
3.3 3.5 − 13.5 3.5 15
ns 3−6
CP to O
n
5.0 2.0 − 9.5 2.0 11
t
PHL
Propagation Delay
3.3 3.5 − 12 3.5 13.5
ns 3−6
CP to O
n
5.0 2.0 − 8.5 2.0 9.5
t
PZH
Output Enable Time
3.3 2.5 − 11 2.5 12
ns 3−7
5.0 2.0 − 8.5 2.0 9.0
t
PZL
Output Enable Time
3.3 3.0 − 10.5 3.5 11.5
ns 3−8
5.0 1.5 − 8.0 2.0 9.0
t
PHZ
Output Disable Time
3.3 4.0 − 12 4.5 13
ns 3−7
5.0 2.0 − 9.5 2.0 10.5
t
PLZ
Output Disable Time
3.3 2.0 − 9.0 2.5 10
ns 3−8
5.0 1.5 − 7.5 1.5 8.5
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC OPERATING REQUIREMENTS
Symbol Parameter
V
CC
*
(V)
74AC 74AC
Unit
Fig.
No.
T
A
= +25°C
C
L
= 50 pF
T
A
= −40°C to +85°C
C
L
= 50 pF
Typ Guaranteed Minimum
t
s
Setup Time, HIGH or LOW 3.3 − 2.5 3.0
ns 3−9
D
n
to CP 5.0 − 1.5 2.0
t
h
Hold Time, HIGH or LOW 3.3 − 1.5 1.5
ns 3−9
D
n
to CP 5.0 − 1.5 1.5
t
w
CP Pulse Width 3.3 − 6.0 7.0
ns 3−6
HIGH or LOW 5.0 − 4.0 5.0
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
