TECHNICAL DATA
IN74HC244A
Octal 3-State Noninverting
Buffer/Line Driver/Line Receiver
High-Performance Silicon-Gate CMOS
The IN74HC244A is identical in pinout to the LS/ALS244. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This octal noninverting buffer/line driver/line receiver is designed to
be used with 3-state memory address drivers, clock drivers, and other
bus-oriented systems. The device has noninverting outputs and two
active-low output enables.
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 2.0 to 6.0 V
•
Low Input Current: 1.0
µA
•
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HC244AN Plastic
IN74HC244ADW SOIC
T
A
= -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Enable A,
Enable B
L
PIN 20=V
CC
PIN 10 = GND
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 ]
