HCS151MS
工作原理图
I0
I1
I2
I3
I4
I5
I6
I7
S0
S1
S2
S0
S1
S2
S0
S1
S2
S0
S1
S2
S0
S1
S2
S0
S1
S2
S0
S1
S2
S0
S1
S2
7
E
16
VCC
8
GND
11
S0
S0
10
S1
S1
9
6
Y
Y
8
S2
S2
S2
S1
S0
真值表
输入
E
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
S0
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
S1
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
S2
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
I0
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
I1
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
I2
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
I3
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
I4
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
I5
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
I6
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
I7
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
输出
Y
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
Y
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
H =水平高， L =水平低，X =无关
规格编号
164
518753
