TECHNICAL DATA
Octal 3-State Noninverting Buffer/Line
Driver/Line Receiver
IN74ALS244
The IN74ALS244 is Octal Buffers and Line Drivers designed to be
used as memory address drivers, clock drivers and busoriented
transmitters/receivers which provide improved PC board density.
• Switching response specified into 500Ω/50 pF
• Switching specifications guaranteed over full temperature and VCC
range
• Low level drive current:
54ALS = 12 mA, 74ALS = 24 mA
ORDERING INFORMATION
IN74ALS244N Plastic
IN74ALS244DW SOIC
TA = -10° to 70° C
for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 20=VCC
PIN 10 = GND
FUNCTION TABLE
Inputs
Enable A,
A,B
Enable B
L
L
L
H
H
X
X=don’t care
Z = high impedance
Outputs
YA,YB
L
H
Z
1