Datasheet

CD54AC112, CD74AC112
DUAL J-K NEGATIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SCHS325 – JANUARY 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 1.5 V, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
–40°C to
85°C
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
f
max
8 9 MHz
t
PLH
CLK
QQ
129 117
ns
t
PLH
CLR or PRE
Q
or
Q
153 139
ns
t
PHL
CLK
QorQ
129 117
ns
t
PHL
CLR or PRE
Q
or
Q
153 139
ns
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
–40°C to
85°C
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
f
max
71 81 MHz
t
PLH
CLK
QQ
3.6 14.4 3.7 13.1
ns
t
PLH
CLR or PRE
Q
or
Q
4.3 17.1 4.4 15.5
ns
t
PHL
CLK
QorQ
3.6 14.4 3.7 13.1
ns
t
PHL
CLR or PRE
Q
or
Q
4.3 17.1 4.4 15.5
ns
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
–40°C to
85°C
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
f
max
100 114 MHz
t
PLH
CLK
QQ
2.6 10.3 2.7 9.4
ns
t
PLH
CLR or PRE
Q
or
Q
3.1 12.2 3.2 11.1
ns
t
PHL
CLK
QorQ
2.6 10.3 2.7 9.4
ns
t
PHL
CLR or PRE
Q
or
Q
3.1 12.2 3.2 11.1
ns
operating characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TYP UNIT
C
pd
Power dissipation capacitance 56 pF