SL74HCT240
Octal 3-State Inverting Buffer/Line
Driver/Line Receiver
High-Performance Silicon-Gate CMOS
The SL74HCT240 is identical in pinout to the LS/ALS240. The
SL74HCT240 may be used as a level converter for interfacing TTL or
NMOS outputs to High Speed CMOS inputs.
This octal inverting 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 inverting outputs and two active-low
output enables.
ORDERING INFORMATION
SL74HCT240N Plastic
SL74HCT240D SOIC
TA = -55° to 125° C for all packages
·
·
·
·
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
PIN 20=VCC
L
L
H
X
H
L
Z
PIN 10 = GND
L
H
X = don’ t care
Z = high impedance
System Logic
Semiconductor
SLS
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
