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DM74LS85 Просмотр технического описания (PDF) - Fairchild Semiconductor
Номер в каталоге
Компоненты Описание
производитель
DM74LS85
4-Bit Magnitude Comparator
Fairchild Semiconductor
DM74LS85 Datasheet PDF : 6 Pages
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6
Function Table
Comparing
Inputs
A3, B3 A2, B2 A1, B1
A3
>
B3
X
X
A3
<
B3
X
X
A3
=
B3 A2
>
B2
X
A3
=
B3 A2
<
B2
X
A3
=
B3 A2
=
B2 A1
>
B1
A3
=
B3 A2
=
B2 A1
<
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
A3
=
B3 A2
=
B2 A1
=
B1
H
=
HIGH Level, L
=
LOW Level, X
=
Don’t Care
A0, B0
X
X
X
X
X
X
A0
>
B0
A0
<
B0
A0
=
B0
A0
=
B0
A0
=
B0
A0
=
B0
A0
=
B0
A0
=
B0
Cascading
Inputs
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
L
L
H
X
X
H
H
H
L
L
L
L
Outputs
A
>
B
H
L
H
L
H
L
H
L
H
L
L
L
L
H
A
<
B
L
H
L
H
L
H
L
H
L
H
L
L
L
H
A
=
B
L
L
L
L
L
L
L
L
L
L
H
H
L
L
Logic Diagram
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