Nexperia

74HC85; 74HCT85

4-bit magnitude comparator

5. Functional diagram

aaa-028459

B0

9

B1

11

B2

14

7

QA<B

6

QA=B

B3

1

5

QA>B

IA<B

2

IA>B

4

A0

10

A1

12

A2

13

A3

15

IA=B

3

Fig. 1. Logic symbol

aaa-028460

12

3

15

7

P<Q

6

P=Q

5

P>Q

P<Q

2

P>Q

4

0

COMP

10

13

P

11

3

1

0

9

14

Q

P=Q

3

Fig. 2. IEC logic symbol

aaa-028461

B0

9

B1

11

B2

14

7

QA<B

6

QA=B

B3

1

5

QA>B

IA<B

2

IA>B

4

A0

10

A1

12

A2

13

A3

15

IA=B

3

Fig. 3. Functional diagram

74HC_HCT85

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 4 — 4 August 2021

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