54FCT540 Datasheet, PDF (1/5 Pages) National Semiconductor (TI) – Octal Buffer/Line Driver with TRI-STATE Outputs

October 1999
54FCT540
Octal Buffer/Line Driver with TRI-STATE^® Outputs
General Description
The ’FCT540 is an octal buffer/line drivers designed to be
employed as memory and address drivers, clock drivers and
bus oriented transmitter/receivers.
These devices are similar in function to the ’FCT240 while
providing flow-through architecture (inputs on opposite side
from outputs). This pinout arrangement makes these devices
especially useful as output ports for microprocessors, allow-
ing ease of layout and greater PC board density.
Features
n TRI-STATE inverting outputs
n Inputs and outputs opposite side of package, allowing
easier interface to microprocessors
n TTL input and output level compatible
n CMOS power consumption
n Output sink capability of 48mA, source capability of 12
mA
n Standard Microcircuit Drawing (SMD) 5962-8976701
Logic Symbol
IEEE/IEC
Connection Diagrams
Pin Assignment
for DIP and Flatpak
Inputs
OE₁
OE₂
I
L
L
H
H
X
X
X
H
X
L
L
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
DS100970-1
Outputs
L
Z
Z
H
DS100970-3
Pin Assignment for LCC
DS100970-2
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
FACT™ is a trademark of Fairchild Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS100970
www.national.com