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74AC191
AC Electrical Characteristics
Note 6: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
Symbol Parameter
V
CC
C
L
= 50 pF T
A
= −40°C to +85°C
Units
(V)
T
A
= +25°CC
L
= 50 pF
(Note 6) Min Typ Max Min Max
f
MAX
Maximum Count 3.3 70 105 65
MHz
Frequency 5.0 90 133 85
t
PLH
Propagation Delay 3.3 2.0 8.5 15.0 1.5 16.0
ns
CP to Q
n
5.0 1.5 6.0 11.0 1.5 12.0
t
PHL
Propagation Delay 3.3 2.5 8.5 14.5 2.0 16.0
ns
CP to Q
n
5.0 1.5 6.0 10.5 1.5 11.5
t
PLH
Propagation Delay 3.3 3.5 10.5 18.0 2.5 20.0
ns
CP to TC 5.0 2.5 7.5 12.0 1.5 14.0
t
PHL
Propagation Delay 3.3 4.0 10.5 17.5 3.0 19.0
ns
CP to TC 5.0 2.5 7.5 12.5 2.0 13.5
t
PLH
Propagation Delay 3.3 2.5 7.5 12.0 2.0 13.5
ns
CP to RC
5.0 2.0 5.5 9.5 1.0 10.5
t
PHL
Propagation Delay 3.3 2.5 7.0 11.5 2.0 12.5
ns
CP to RC
5.0 1.5 5.0 8.5 1.0 9.5
t
PLH
Propagation Delay 3.3 2.5 7.0 12.0 1.5 13.5
ns
CE to RC 5.0 1.5 5.0 8.5 1.0 9.5
t
PHL
Propagation Delay 3.3 2.0 6.5 11.0 1.5 12.5
ns
CE
to RC 5.0 1.5 5.0 8.0 1.0 9.0
t
PLH
Propagation Delay 3.3 2.5 6.5 12.5 2.0 14.5
ns
U
/D to RC 5.0 1.5 5.0 9.0 1.0 10.0
t
PHL
Propagation Delay 3.3 2.5 7.0 12.0 2.0 13.5
ns
U /D to RC 5.0 1.5 5.0 8.5 1.0 10.0
t
PLH
Propagation Delay 3.3 2.0 7.0 11.5 1.5 13.5
ns
U
/D to TC 5.0 1.5 5.0 8.5 1.0 9.5
t
PHL
Propagation Delay 3.3 2.0 6.5 11.0 1.5 12.5
ns
U
/D to TC 5.0 1.5 5.0 8.5 1.0 9.5
t
PLH
Propagation Delay 3.3 2.5 8.0 13.5 2.0 15.5
ns
P
n
to Q
n
5.0 2.0 5.5 9.5 1.0 10.5
t
PHL
Propagation Delay 3.3 2.5 7.5 13.0 1.5 14.5
ns
P
n
to Q
n
5.0 1.5 5.5 9.5 1.0 10.5
t
PLH
Propagation Delay 3.3 3.5 9.5 14.5 2.5 17.5
ns
PL to Q
n
5.0 2.0 5.5 9.5 1.0 10.5
t
PHL
Propagation Delay 3.3 3.0 8.0 13.5 2.0 15.5
ns
PL to Q
n
5.0 2.0 6.0 10.0 1.5 11.0