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參數(shù)資料
| 型號： | HD74LV221A |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dual Monostable Multivibrators(雙單穩(wěn)態(tài)多諧振蕩器) |
| 中文描述： | 雙單穩(wěn)態(tài)多頻振蕩器（雙單穩(wěn)態(tài)多諧振蕩器） |
| 文件頁數(shù)： | 8/19頁 |
| 文件大?。?/td> | 88K |
| 代理商： | HD74LV221A |
HD74LV221A
8
Switching Characteristics (cont)
V
CC
= 5.0
±
0.5 V
Ta = 25
°
C
Ta = –40 to 85
°
C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
FROM
(Input)
TO
(Output)
Propa-
gation
delay time
t
PLH
t
PHL
—
7.3
12.0
1.0
14.0
ns
C
L
= 15 pF
A or B
Q or
Q
—
8.7
14.0
1.0
16.0
C
L
= 50 pF
—
6.2
9.4
1.0
11.0
C
L
= 15 pF
CLR
Q or
Q
—
7.4
11.4
1.0
13.0
C
L
= 50 pF
—
7.3
12.9
1.0
15.0
C
L
= 15 pF
CLR
Q or
Q
—
8.6
14.9
1.0
17.0
C
L
= 50 pF
(Trigger)
Pulse
width
t
w
5.0
—
—
5.0
—
ns
A
, B or
CLR
Output
pulse
width
t
wQ
—
140
200
—
240
ns
C
L
= 50 pF,
Cext = 28 pF, Rext = 2 k
90
100
110
90
110
μ
s
C
L
= 50 pF,
Cext = 0.01
μ
F, Rext = 10 k
0.9
1.0
1.1
0.9
1.1
ms
C
L
= 50 pF,
Cext = 0.1
μ
F, Rext = 10 k
t
wQ
—
±
1
—
—
—
%
CL = 50 pF
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