54FCT540 Octal Buffer/Line Driver with TRI-STATE Outputs
October 1999
54FCT540
Octal Buffer/Line Driver with TRI-STATE
廬
Outputs
General Description
The 鈥橣CT540 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 鈥橣CT240 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
DS100970-3
DS100970-1
Pin Assignment for LCC
Inputs
OE
1
L
H
X
L
OE
2
L
X
H
L
I
H
X
X
L
Outputs
L
Z
Z
H
DS100970-2
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
FACT
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is a trademark of Fairchild Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS100970
www.national.com
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