HD74LV2G123A
Switching Characteristics
(cont)
•
V
CC
= 3.3 ± 0.3 V
Item
Symbol
T
a
= 25°C
Min
Propagation
delay time
Enable time
Disable time
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
—
—
—
—
—
—
—
90
0.9
Pulse width
Retrigger time
t
w
t
rr
5.0
—
—
Typ
9.7
11.5
8.0
9.5
9.9
11.5
150
100
1.0
—
30
1.2
Max
20.6
24.1
15.8
19.3
22.4
25.9
240
110
1.1
—
—
—
T
a
= –40 to 85°C
Min
1.0
1.0
1.0
1.0
1.0
1.0
—
90
0.9
5.0
—
—
Max
24.0
27.5
18.5
22.0
26.0
29.5
300
110
1.1
—
—
—
Unit Test
FROM
Conditions (Input)
ns
ns
ns
ns
µs
ms
ns
ns
µs
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
C
L
= 15 pF
C
L
= 50 pF
CLR
A
or B
TO
(Output)
Q
Q
CLR
Q
(Trigger)
Output pulse width t
wQ
C
L
= 50 pF,
Cext = 28 pF, Rext = 2 kΩ
C
L
= 50 pF,
Cext = 0.01
µF,
Rext = 10 kΩ
C
L
= 50 pF,
Cext = 0.1
µF,
Rext = 10 kΩ
A,
B or
CLR
A
or B
(Rext = 1 kΩ, Cext = 100 pF)
A
or B
(Rext = 1 kΩ, Cext = 0.01
µF)
Rev.3.00, Sep.30.2003, page 9 of 18