MC74AC574, MC74ACT574
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
74AC
74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Unit
Fig.
No.
Min
Typ
Max
Min
Max
Maximum Clock
fmax
Frequency
3.3
75
−
−
60
5.0
95
−
−
85
−
−
MHz
3−3
Propagation Delay
tPLH
CP to On
Propagation Delay
tPHL
CP to On
tPZH
Output Enable Time
3.3
3.5
−
13.5
3.5
5.0
2.0
−
9.5
2.0
3.3
3.5
−
12
3.5
5.0
2.0
−
8.5
2.0
3.3
2.5
−
11
2.5
5.0
2.0
−
8.5
2.0
15
11
ns
3−6
13.5
9.5
ns
3−6
12
9.0
ns
3−7
tPZL
Output Enable Time
3.3
3.0
−
10.5
3.5
5.0
1.5
−
8.0
2.0
11.5
9.0
ns
3−8
tPHZ
Output Disable Time
3.3
4.0
−
12
4.5
5.0
2.0
−
9.5
2.0
13
10.5
ns
3−7
tPLZ
Output Disable Time
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
3.3
2.0
−
9.0
2.5
5.0
1.5
−
7.5
1.5
10
8.5
ns
3−8
AC OPERATING REQUIREMENTS
Symbol
Parameter
Setup Time, HIGH or LOW
ts
Dn to CP
Hold Time, HIGH or LOW
th
Dn to CP
CP Pulse Width
tw
HIGH or LOW
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC
74AC
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3
−
2.5
3.0
5.0
−
1.5
2.0
ns
3−9
3.3
−
1.5
1.5
5.0
−
1.5
1.5
ns
3−9
3.3
−
6.0
7.0
5.0
−
4.0
5.0
ns
3−6
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