Octal Buffer/Line Driver
54FCT540 Octal Buffer/Line Driver with TRI-STATE Outputs
October 1999
54FCT540 Octal Buffer/Line Driver with TRI-STATE...
Description
54FCT540 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, allowing 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 L
OE2 L
I H
H XX
X HX
L LL
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
54FCT540
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact ...
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