HD74LS85
功能表
A
3
, B
3
A
3
> B
3
A
3
< B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
A
3
= B
3
输入
A
2
, B
2
A
1
, B
1
X
X
X
X
A
2
> B
2
X
A
2
< B
2
X
A
2
= B
2
A
1
> B
1
A
2
= B
2
A
1
< B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
2
= B
2
A
1
= B
1
A
0
, B
0
X
X
X
X
X
X
A
0
> B
0
A
0
< B
0
A
0
= B
0
A
0
= B
0
A
0
= B
0
A
0
= B
0
A
0
= B
0
级联输入
A>B
A<B
A-B
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
L
L
L
H
L
X
X
H
H
H
L
L
L
L
A>B
H
L
H
L
H
L
H
L
H
L
L
L
H
输出
A<B
L
H
L
H
L
H
L
H
L
H
L
L
H
A-B
L
L
L
L
L
L
L
L
L
L
H
L
L
H;高电平,L ;低电平, X;不相干
框图
A
3
B
3
A>B
A
2
B
2
A<B
A-B
A>B
A
1
B
1
A<B
A-B
A
0
B
0
绝对最大额定值
符号
评级
电源电压
V
CC
7
输入电压
V
IN
7
功耗
P
T
400
储存温度
TSTG
-65到+150
注:电压值,除非另有说明,是相对于网络的接地端子。
项
单位
V
V
mW
°C
Rev.2.00 , Feb.18.2005 , 6 2页