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HD74LV2G74A Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – Single D-type Flip Flops with Preset and Clear | |||
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HD74LV2G74A
Switching Characteristics
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
fmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ Max
30
60
â
20
40
â
â 16.3 27.0
â 17.9 29.0
â 21.6 34.0
â 24.5 39.5
13.0 â
â
9.0 â
â
0.5 â
â
12.0 â
â
12.0 â
â
Ta = â40 to 85°C
Min Max
20
â
15
â
1.0 29.0
1.0 32.0
1.0 36.5
1.0 42.5
14.0 â
9.0
â
0.5
â
13.0 â
13.0 â
Test
Unit Conditions
VCC = 1.8 ± 0.15 V
FROM
TO
(Input) (Output)
MHz
ns
CL = 15 pF
CL = 50 pF
CL = 15 pF
PRE/CLR
CLK
Q or Q
CL = 50 pF PRE/CLR Q or Q
CLK
ns
D
PRE or CLR inactive
ns
ns
PRE or CLR âLâ
CLK âHâ or âLâ
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
fmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ Max
50 100 â
30
70
â
â
9.8 14.8
â 11.1 16.4
â 13.0 17.4
â 14.2 20.0
8.0
â
â
7.0
â
â
0.5
â
â
8.0
â
â
8.0
â
â
Ta = â40 to 85°C
Min Max
40
â
25
â
1.0 17.0
1.0 19.0
1.0 20.0
1.0 23.0
9.0
â
7.0
â
0.5
â
9.0
â
9.0
â
Unit
Test
Conditions
VCC = 2.5 ± 0.2 V
FROM
TO
(Input) (Output)
MHz
ns
CL = 15 pF
CL = 50 pF
CL = 15 pF
PRE/CLR
CLK
Q or Q
CL = 50 pF PRE/CLR Q or Q
CLK
ns
D
PRE or CLR inactive
ns
ns
PRE or CLR âLâ
CLK âHâ or âLâ
Item
Maximum clock
frequency
Propagation
delay time
Setup time
Hold time
Pulse width
Symbol
fmax
tPLH
tPHL
tsu
th
tw
Ta = 25°C
Min Typ Max
80 140 â
50
90
â
â
6.9 12.3
â
7.9 11.9
â
9.2 15.8
â 10.2 15.4
6.0
â
â
5.0
â
â
0.5
â
â
6.0
â
â
6.0
â
â
Ta = â40 to 85°C
Min Max
70
â
45
â
1.0 14.5
1.0 14.0
1.0 18.0
1.0 17.5
7.0
â
5.0
â
0.5
â
7.0
â
7.0
â
Unit
Test
Conditions
VCC = 3.3 ± 0.3 V
FROM
TO
(Input) (Output)
MHz
ns
CL = 15 pF
CL = 50 pF
CL = 15 pF
PRE/CLR
CLK
Q or Q
CL = 50 pF PRE/CLR Q or Q
CLK
ns
D
PRE or CLR inactive
ns
ns
PRE or CLR âLâ
CLK âHâ or âLâ
Rev.5.00 Apr 07, 2006 page 5 of 8
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