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Part Name
Description
74HC85 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
74HC85
4-bit magnitude comparator
Philips Electronics
74HC85 Datasheet PDF : 9 Pages
1
2
3
4
5
6
7
8
9
Philips Semiconductors
4-bit magnitude comparator
Product specification
74HC/HCT85
Fig.4 Functional diagram.
APPLICATIONS
•
Process controllers
•
Servo-motor control
FUNCTION TABLE
COMPARING INPUTS
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
A
3
=B
3
A
2
, B
2
X
X
A
2
>
B
2
A
2
<
B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
2
=B
2
A
1
, B
1
X
X
X
X
A
1
>
B
1
A
1
<
B
1
A
1
=B
1
A
1
=B
1
A
1
=B
1
A
1
=B
1
A
1
=B
1
A
1
=B
1
A
1
=B
1
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
A
0
=B
0
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
CASCADING INPUTS
I
A
>
B
I
A
<
B
I
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
L
L
H
X
X
H
H
H
L
L
L
L
December 1990
4
Q
A
>
B
H
L
H
L
H
L
H
L
H
L
L
L
L
H
OUTPUTS
Q
A
<
B
L
H
L
H
L
H
L
H
L
H
L
L
L
H
Q
A=B
L
L
L
L
L
L
L
L
L
L
H
H
L
L
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