TECHNICAL DATA
IN74HCT244A
Octal 3-State Noninverting
Buffer/Line Driver/Line Receiver
High-Performance Silicon-Gate CMOS
The IN74HCT244A is identical in pinout to the LS/ALS244. The de-
vice may be used as a level converter for interfacing TTL or NMOS out-
puts to High-Speed CMOS inputs.
The IN74HCT244A is an octal noninverting buffer/line driver/line re-
ceiver designed to be used with 3-state memory address drivers, clock
drivers, and other bus-oriented systems. The device has non-inverted
outputs and two active-low output enables.
ORDERING INFORMATION
IN74HCT244AN Plastic
IN74HCT244ADW SOIC
IN74HCT244AZ Chip
TA = -55° to 125° C for all packages
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TTL/NMOS-Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 mA
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Enable A,
Outputs
YA,YB
A,B
Enable B
L
L
L
H
X
L
H
Z
PIN 20=VCC
PIN 10 = GND
H
X=don’t care;Z = high impedance
INTEGRAL
1
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