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參數(shù)資料
| 型號： | LV74 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Dual D-type flip-flop with set and reset; positive-edge trigger |
| 中文描述： | 帶設(shè)置和復(fù)位功能的雙D觸發(fā)器；上升沿觸發(fā) |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 66K |
| 代理商： | LV74 |
HD74LV74A
7
Switching Characteristics
V
CC
= 2.5
±
0.2 V
Ta = 25
°
C
Ta = –40 to 85
°
C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
FROM
(Input)
TO
(Output)
Maximum
clock
frequency
t
max
50
100
—
40
—
MHz
C
L
= 15 pF
30
70
—
25
—
C
L
= 50 pF
Propagation
delay time
t
PLH
t
PHL
—
9.8
14.8
1.0
17.0
ns
C
L
= 15 pF
PRE
/
CLR
Q or
Q
—
11.1
16.4
1.0
19.0
CLK
—
13.0
17.4
1.0
20.0
C
L
= 50 pF
PRE
/
CLR
Q or
Q
—
14.2
20.0
1.0
23.0
CLK
Setup time
t
su
8.0
—
—
9.0
—
ns
Data
7.0
—
—
7.0
—
PRE
or
CLR
inactive
Hold time
t
h
0.5
—
—
0.5
—
ns
Pulse width
t
w
8.0
—
—
9.0
—
ns
PRE
or
CLR
“L”
8.0
—
—
9.0
—
CLK “H” or “L”
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|---|---|
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