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HD74LV74A
Switching Characteristics
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
tmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ
50 100
30 70
— 9.8
— 11.1
— 13.0
— 14.2
8.0 —
7.0 —
0.5 —
8.0 —
8.0 —
Max
—
—
14.8
16.4
17.4
20.0
—
—
—
—
—
Ta = –40 to 85°C
Min
Max
40
—
25
—
1.0
17.0
1.0
19.0
1.0
20.0
1.0
23.0
9.0
—
7.0
—
0.5
—
9.0
—
9.0
—
Unit
MHz
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
ns
ns
ns
FROM
(Input)
VCC = 2.5 ± 0.2 V
TO
(Output)
PRE/CLR Q or Q
CLK
PRE/CLR Q or Q
CLK
Data
PRE or CLR inactive
PRE or CLR “L”
CLK “H” or “L”
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
tmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ
80 140
50 90
— 6.9
— 7.9
— 9.2
— 10.2
6.0 —
5.0 —
0.5 —
6.0 —
6.0 —
Max
—
—
12.3
11.9
15.8
15.4
—
—
—
—
—
Ta = –40 to 85°C
Min
Max
70
—
45
—
1.0
14.5
1.0
14.0
1.0
18.0
1.0
17.5
7.0
—
5.0
—
0.5
—
7.0
—
7.0
—
Unit
MHz
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
ns
ns
ns
FROM
(Input)
VCC = 3.3 ± 0.3 V
TO
(Output)
PRE/CLR Q or Q
CLK
PRE/CLR Q or Q
CLK
Data
PRE or CLR inactive
PRE or CLR “L”
CLK “H” or “L”
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
tmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ
130 180
90 140
— 5.0
— 5.6
— 6.6
— 7.2
5.0 —
3.0 —
0.5 —
5.0 —
5.0 —
Ta = –40 to 85°C
Max Min
Max
— 110
—
— 75
—
7.7 1.0
9.0
7.3 1.0
8.5
9.7 1.0
11.0
9.3 1.0
10.5
— 5.0
—
— 3.0
—
— 0.5
—
— 5.0
—
— 5.0
—
Unit
MHz
ns
Test
Conditions
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
ns
ns
ns
FROM
(Input)
VCC = 5.0 ± 0.5 V
TO
(Output)
PRE/CLR Q or Q
CLK
PRE/CLR Q or Q
CLK
Data
PRE or CLR inactive
PRE or CLR “L”
CLK “H” or “L”
Rev.3.00 Jun. 02, 2004 page 5 of 9