SL74LS244

System Logic

Semiconductor

SLS

Octal 3-State Noninverting Buffer/Line

Driver/Line Receiver

These octal buffers and line drivers and designed specifically to

improve both the performance and density of three-state memory

address

drivers,

clock

drivers,

and

busoriented

receivers

and

transmitters.

This devise features high fan-out, improved fan-in, and 400 mV noise

margin.

It can be used to drive terminated lines down to 133 ohms.

• 3-State Outputs Drive Bus Lines or Buffer Memory Address

Registers

• P-N-P Inputs Reduce D-C Loading

• Hysteresis at Inputs Improves Noise Margins

ORDERING INFORMATION

SL74LS244N Plastic

SL74LS244D SOIC

° to 70° C

for all packages

FUNCTION TABLE

Inputs

Outputs

Enable A,

Enable B

A,B

YA,YB

L

L

L

L

H

H

H

X

Z

X=don’t care

Z = high impedance

LOGIC DIAGRAM

PIN 10 = GND

PIN ASSIGNMENT