TECHNICAL DATA
IN74LS244
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
IN74LS244N Plastic
IN74LS244DW SOIC
T
A
= 0° to 70° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
PIN 20=V
CC
PIN 10 = GND
Enable A,
Enable B
L
L
H
X=don’t care
Z = high impedance
A,B
L
H
X
Outputs
YA,YB
L
H
Z
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
