HCF4585BC1 데이터 시트보기 (PDF) - STMicroelectronics

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HCF4585BC1

4-BIT MAGNITUDE COMPARATOR

STMicroelectronics 

LOGIC DIAGRAM

HCC/HCF4585B

TRUTH TABLE

Inputs

Compari ng

A3, B3 A2, B2 A1, B1 A0, B0

A3 > B3

A3 = B3

A3 = B3

A3 = B3

X

A2 > B2

A2 = B2

A2 = B2

X

X

A1 > B1

A1 = B1

X

X

X

A0 > B0

A3 = B3

A3 = B3

A3 = B3

A2 = B2

A2 = B2

A2 = B2

A1 = B1

A1 = B1

A1 = B1

A0 = B0

A0 = B0

A0 = B0

A3 = B3

A3 = B3

A3 = B3

A3 < B3

A2 = B2

A2 = B2

A2 < B2

X

A1 = B1

A1 < B1

X

X

A0 < B0

X

X

X

X = Don’t Care

A<B

X

X

X

X

0

0

1

X

X

X

X

Cascading

A=B A>B

X

1

X

1

X

1

X

1

0

1

1

X

0

X

X

X

X

X

X

X

X

X

A<B

0

0

0

0

0

0

1

1

1

1

1

Outputs

A =B A > B

0

1

0

1

0

1

0

1

0

1

1

0

0

0

0

0

0

0

0

0

0

0

Logic 1 = High Level

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