參數(shù)資料
型號(hào): 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(yè)數(shù): 2/19頁(yè)
文件大?。?/td> 88K
代理商: HD74LV221A
HD74LV221A
2
Function Table
Inputs
CLR
Outputs
A
B
Q
Q
L
X
X
L
H
X
H
X
L
H
X
X
L
L
H
H
L
H
H
Note:
L
H
H:
L:
X:
:
:
High level
Low level
Immaterial
Low to high transition
High to low transition
High level pulse
: Low level pulse
:
Pin Arrangement
V
CC
1Rext / Cext
1Cext
1Q
2B
2
Q
2
CLR
1
A
1B
1
CLR
1
Q
2Q
2Cext
2Rext / Cext
2
A
(Top view)
11
12
13
14
15
16
1
2
3
4
5
6
7
GND 8
9
10
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