HD74LS85

Rev.2.00, Feb.18.2005, page 2 of 6

Function Table

Inputs

Cascading Inputs

Outputs

A > B

A < B

A = B

A > B

A < B

A = B

X

X

X

X

X

X

H

L

L

X

X

X

X

X

X

L

H

L

X

X

X

X

X

H

L

L

X

X

X

X

X

L

H

L

X

X

X

X

H

L

L

X

X

X

X

L

H

L

X

X

X

H

L

L

X

X

X

L

H

L

H

L

L

H

L

L

L

H

L

L

H

L

X

X

H

L

L

H

H

H

L

L

L

L

L

L

L

H

H

L

H; high level, L; low level, X; irrelevant

Block Diagram

A < B

A = B

A > B

A > B

A = B

A < B

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

7

V

Input voltage

7

V

Power dissipation

400

mW

Storage temperature

Tstg

–65 to +150

°C

Note:

Voltage value, unless otherwise noted, are with respect to network ground terminal.