54FCT540D NSC [National Semiconductor], 54FCT540D Datasheet

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54FCT540D

Manufacturer Part Number
54FCT540D
Description
Octal Buffer/Line Driver with TRI-STATE Outputs
Manufacturer
NSC [National Semiconductor]
Datasheet
© 1999 National Semiconductor Corporation
54FCT540
Octal Buffer/Line Driver with TRI-STATE
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.
Logic Symbol
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
TRI-STATE
FACT
OE
H
X
L
L
1
is a trademark of Fairchild Semiconductor Corporation.
®
Inputs
is a registered trademark of National Semiconductor Corporation.
OE
X
H
L
L
2
H
X
X
L
I
IEEE/IEC
Outputs
Z
Z
H
L
DS100970-1
DS100970
Features
n TRI-STATE inverting outputs
n Inputs and outputs opposite side of package, allowing
n TTL input and output level compatible
n CMOS power consumption
n Output sink capability of 48mA, source capability of 12
n Standard Microcircuit Drawing (SMD) 5962-8976701
Connection Diagrams
easier interface to microprocessors
mA
Pin Assignment for LCC
for DIP and Flatpak
Pin Assignment
®
Outputs
DS100970-3
DS100970-2
October 1999
www.national.com

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54FCT540D Summary of contents

Page 1

Octal Buffer/Line Driver with TRI-STATE 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 ...

Page 2

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Input Diode Current ( −0. ...

Page 3

AC Electrical Characteristics Symbol Parameter t Propagation Delay PLH t Data to Outputs PHL t Output Enable Time PZH t PZL t Output Disable Time PHZ t PLZ Capacitance Symbol Parameter C Input Capacitance IN C Power Dissipation PD Capacitance ...

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Physical Dimensions inches (millimeters) unless otherwise noted 20-Terminal Ceramic Leadless Chip Carrier (L) www.national.com NS Package Number E20A 20-Lead Ceramic Dual-In-Line Package (D) NS Package Number J20A 4 ...

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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL ...

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