SN74LS283

http://onsemi.com

4

FUNCTIONAL TRUTH TABLE

C (n – 1)

L

L

L

L

L

L

L

H

H

L

L

H

L

H

L

L

H

H

L

H

H

L

L

H

L

H

L

H

L

H

H

H

L

L

H

H

H

H

H

H

Limits

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Input HIGH Voltage

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

Input LOW Voltage

0.8

V

Guaranteed Input LOW Voltage for

All Inputs

Input Clamp Diode Voltage

– 0.65

– 1.5

V

Output HIGH Voltage

2.7

3.5

V

Output LOW Voltage

0.25

0.4

V

Output LOW Voltage

0.35

0.5

V

per Truth Table

20

µA

I

Input HIGH Current

Any A or B

40

µA

Input HIGH Current

0.1

mA

Any A or B

0.2

mA

I

Input LOW Current

– 0.4

mA

Input LOW Current

Any A or B

– 0.8

mA

Short Circuit Current (Note 1)

–20

– 100

mA

Power Supply Current

Total, Output HIGH

34

mA

CC

Total, Output LOW

39

CC

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.