54AC540 Octal Buffer/Line Driver with TRI-STATE Outputs
July 1998
54AC540
Octal Buffer/Line Driver with TRI-STATE
®
Outputs
General Description
The ’AC540 is an octal buffer/line drivers designed to be em-
ployed as memory and address drivers, clock drivers and
bus oriented transmitter/receivers.
These devices are similar in function to the ’AC240 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
I
CC
and I
OZ
reduced by 50%
n
TRI-STATE inverting outputs
n
Inputs and outputs opposite side of package, allowing
easier interface to microprocessors
n
Output source/sink 24 mA
n
Standard Military Drawing 54AC540: 5962-8769501
Logic Symbol
IEEE/IEC
Truth Table
Inputs
OE
1
L
H
X
L
OE
2
L
X
H
L
I
H
X
X
L
L
Z
Z
H
Outputs
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
DS100293-1
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
FACT
™
is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100293
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
