Nexperia

74HC85; 74HCT85

4-bit magnitude comparator

6. Pinning information

6.1. Pinning

74HC85

74HCT85

B3

VCC

IA<B

A3

IA=B

B2

IA>B

A2

QA>B

A1

QA=B

B1

QA<B

A0

GND

B0

aaa-028462

1

2

3

4

5

6

7

8

10

9

12

11

14

13

16

15

Fig. 5. Pin configuration SOT109-1 (SO16)

74HC85

74HCT85

B3

VCC

IA<B

A3

IA=B

B2

IA>B

A2

QA>B

A1

QA=B

B1

QA<B

A0

GND

B0

aaa-028463

1

2

3

4

5

6

7

8

10

9

12

11

14

13

16

15

Fig. 6. Pin configuration SOT403-1 (TSSOP16)

6.2. Pin description

Table 2. Pin description

Symbol

Pin

Description

IA<B

2

A<B expansion input

IA=B

3

A=B expansion input

IA>B

4

A>B expansion input

QA>B

5

A>B output

QA=B

6

A=B output

QA<B

7

A<B output

A0, A1, A2, A3

10, 12, 13, 15

word A inputs

B0, B1, B2, B3

9, 11, 14, 1

word B inputs

GND

8

ground (0 V)

VCC

16

supply voltage

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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