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74AC520 • 74ACT520
AC Electrical Characteristics for AC
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
AC Electrical Characteristics for ACT
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 8) Min Typ Max Min Max
t
PLH
Propagation Delay 3.3 4.0 7.5 11.5 3.0 13.0
ns
A
n
or B
n
to O
A = B
5.0 2.5 5.5 8.5 2.0 9.5
t
PHL
Propagation Delay 3.3 4.5 8.0 12.0 3.5 13.5
ns
A
n
or B
n
to O
A = B
5.0 3.0 5.5 9.0 2.5 10.0
t
PLH
Propagation Delay 3.3 3.5 5.5 8.5 2.5 9.5
ns
I
A = B
to O
A = B
5.0 2.5 4.5 6.5 2.0 7.0
t
PHL
Propagation Delay 3.3 3.5 5.5 8.5 2.5 9.5
ns
I
A = B
to O
A = B
5.0 2.5 4.5 6.5 2.0 7.0
V
CC
T
A
= +25°CT
A
= −40°C to +85°C
Symbol Parameter (V)
C
L
= 50 pF C
L
= 50 pF
Units
(Note 9) Min Typ Max Min Max
t
PLH
Propagation Delay
5.0 3.0 5.5 8.5 2.5 9.5 ns
A
n
or B
n
to O
A = B
t
PHL
Propagation Delay
5.0 3.0 6.0 10.0 2.5 11.5 ns
A
n
or B
n
to O
A = B
t
PLH
Propagation Delay
5.0 2.0 4.0 6.0 2.0 6.5 ns
I
A = B
to O
A = B
t
PHL
Propagation Delay
5.0 2.5 5.0 7.5 2.0 8.5 ns
I
A = B
to O
A = B
Symbol Parameter Typ Units Conditions
C
IN
Input Capacitance 4.5 pF V
CC
= OPEN
C
PD
Power Dissipation Capacitance 40 pF V
CC
= 5.0V