74AC109, 74ACT109 Dual JK Positive Edge-Triggered Flip-Flop
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC109, 74ACT109 Rev. 1.5 6
AC Electrical Characteristics for AC
Note:
6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.
AC Operating Requirements for AC
Note:
7. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V
Symbol Parameter V
CC
(V)
(6)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50pF
UnitsMin. Typ. Max. Min. Max.
f
MAX
Maximum Clock Frequency 3.3 125 150 100 MHz
5.0 150 175 125
t
PLH
Propagation Delay,
CP
n
to Q
n
or Q
n
3.3 4.0 8.0 13.5 3.5 16.0 ns
5.0 2.5 6.0 10.0 2.0 10.5
t
PHL
Propagation Delay,
CP
n
to Q
n
or Q
n
3.3 3.0 8.0 14.0 3.0 14.5 ns
5.0 2.0 6.0 10.0 1.5 10.5
t
PLH
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
3.3 3.0 8.0 12.0 2.5 13.0 ns
5.0 2.5 6.0 9.0 2.0 10.0
t
PHL
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
3.3 3.0 10.0 12.0 3.0 13.5 ns
5.0 2.0 7.5 9.5 2.0 10.5
Symbol Parameter V
CC
(V)
(7)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50 pF
UnitsTyp. Guaranteed Minimum
t
S
Setup Time, HIGH or LOW,
J
n
or K
n
to CP
n
3.3 3.5 6.5 7.5 ns
5.0 2.0 4.5 5.0
t
H
Hold Time, HIGH or LOW,
J
n
or K
n
to CP
n
3.3 –1.5 0 0 ns
5.0 –0.5 0.5 0.5
t
W
Pulse Width, C
Dn
or S
Dn
3.3 2.0 7.0 7.5 ns
5.0 2.0 4.5 5.0
t
REC
Recovery Time,
C
Dn
or S
Dn
to CP
n
3.3 –2.5 0 0 ns
5.0 –1.5 0 0