IN74ACT240
O
CTAL
3-S
TATE
I
NVERTING
B
UFFER
/L
INE
D
RIVER
/L
INE
R
ECEIVER
High-Speed Silicon-Gate CMOS
The IN74ACT240 is identical in pinout to the LS/ALS240,
HC/HCT240. The IN74ACT240 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.
•
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
µA;
0.1
µA
@ 25°C
Outputs Source/Sink 24 mA
•
•
•
•
ORDERING INFORMATION
IN74ACT240N Plastic
IN74ACT240DW SOIC
T
A
= -40° to 85° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Enable A,
A,B
Enable B
L
L
L
H
H
X
Outputs
YA,YB
H
L
Z
PIN 20=V
CC
PIN 10 = GND
X = don’t care
Z = high impedance
1
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