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54AC540 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer 54AC540
Beschreibung Octal Buffer/Line Driver
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
54AC540 Datasheet, Funktion
www.DataSheet4U.com
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 ICC and IOZ 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
OE1
L
OE2
L
I
H
H XX
X HX
L LL
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
L
Z
Z
H
DS100293-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100293
www.national.com






54AC540 Datasheet, Funktion
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Ceramic Flatpak (F)
NS Package Number W20A
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device or system whose failure to perform can be rea-
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sonably expected to cause the failure of the life support
ure to perform when properly used in accordance
device or system, or to affect its safety or effectiveness.
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
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