Datasheet 5962-8976601RA, 5962-8976601SA, 5962-89766012A Datasheet (NSC)

54FCT541
Octal Buffer/Line Driver with TRI-STATE

®

Outputs

General Description

The ’FCT541 is an octal buffer and line driver with
TRI-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus-oriented transmitter/
receiver. The ’FCT541 is similar to the ’FCT244 with broad­side pinout.

Features

n Non-inverting buffers
n TTL input and output level compatible
n CMOS power consumption
n Output sink capability of 48 mA, source capability of

12 mA

n Flow-through pinout for ease of PC board layout
n Standard Microcircuit Drawing (SMD) 5962-8976601

Ordering Code

Military Package Package Description

Number

54FCT541DMQB J20A 20-Lead Ceramic Dual-In-Line
54FCT541FMQB W20A 20-Lead Cerpack
54FCT541LMQB E20A 20-Lead Ceramic Leadless Chip Carrier, Type C

Connection Diagram

Pin Names Description

OE

1

,OE

2

Output Enable Input (Active Low)

I

0–I7

Inputs

O

0–O7

Outputs

Inputs Outputs

OE

1

OE

2

I FCT541

LLH H
HXX Z
XHX Z
LLL L

H

=

HIGH Voltage Level
L=LOW Voltage Level
X=Immaterial
Z=High Impedance

TRI-STATE®is a registered trademark of FAirchild Semiconductor Corporation.

Pin Assignment

DIP and Cerpack

DS100953-1

Pin Assignment

LCC

DS100953-30

October 1999

54FCT541 Octal Buffer/Line Driver with TRI-STATE Outputs

© 1999 National Semiconductor Corporation DS100953 www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.

Storage Temperature −65˚C to +150˚C
Ambient Temperature under Bias −55˚C to +125˚C
Junction Temperature under Bias

Ceramic −55˚C to +175˚C

V

CC

Pin Potential to

Ground Pin −0.5V to +7.0V
Input Voltage (Note 2) −0.5V to +7.0V
Input Current (Note 2) −30 mA to +5.0 mA
Voltage Applied to Any Output

in the Disabled or

Power-Off State −0.5V to 5.5V

in the HIGH State −0.5V to V

CC

Current Applied to Output

in LOW State (Max) twice the rated I

OL

(mA)

DC Latchup Source Current −500 mA

Recommended Operating
Conditions

Free Air Ambient Temperature

Military −55˚C to +125˚C

Supply Voltage

Military +4.5V to +5.5V

Minimum Input Edge Rate (∆V/∆t)

Data Input 50 mV/ns
Enable Input 20 mV/ns

DC Electrical Characteristics

Symbol Parameter FCT541 Units V

CC

Conditions

Min Typ Max

V

IH

Input HIGH Voltage 2.0 V Recognized HIGH Signal

V

IL

Input LOW Voltage 0.8 V Recognized LOW Signal

V

CD

Input Clamp Diode Voltage −1.2 V Min I

IN

=

−18 mA

V

OH

Output HIGH Voltage 54FCT 4.3 V Min I

OH

=

−300 µA

54FCT 2.4 V Min I

OH

=

−12 mA

V

OL

Output LOW Voltage 54FCT 0.2 V Min I

OL

=

300 µA

54FCT 0.55 V Min I

OL

=

48 mA

I

IH

Input HIGH Current 5 µA Max V

IN

=

V

CC

I

IL

Input LOW Current −5 µA Max V

IN

=

0.0V

I

OZH

Output Leakage Current 10 µA Max V

OUT

=

5.5V; OE

n

=

2.0V

I

OZL

Output Leakage Current −10 µA Max V

OUT

=

0.0V; OE

n

=

2.0V

I

OS

Output Short-Circuit Current -60 mA Max V

OUT

=

0.0V

I

CCQ

Quiescent Power
Supply Current

1.5 mA Max V

IN

<

0.2V or VIN5.3V, VCC=

5.5V

∆I

CC

Quiescent Power
Supply Current

2.0 mA Max V

I

=

V

CC

− 2.1V

I

CCD

Dynamic I

CC

0.4 mA/
MHz

Max VCC= 5.5V, Outputs Open,

One Bit Toggling, 50%Duty
Cycle, OE

n

=

GND

I

CC

Total Power Supply
Current

6.0 mA Max VCC= 5.5V, Outputs Open, fI

= 10MHz, OE

n

=

GND, One
Bit Toggling, 50%Duty Cycle,
OE

n

=

GND

Note 1: Absolutemaximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions
is not implied.

Note 2: Either voltage limit or current limit is sufficient to protect inputs.

54FCT541

www.national.com 2

AC Electrical Characteristics

54FCT

T

A

=

−55˚C to +125˚C Fig.

Symbol Parameter V

CC

=

4.5V–5.5V Units No.

C

L

=

50 pF

Min Max

t

PLH

Propagation Delay 2.0 9.0

ns

Figure

4

t

PHL

Data to Outputs 2.0 9.0

t

PZH

Output Enable Time 2.0 12.5

ns

Figure

5

t

PZL

2.0 12.5

t

PHZ

Output Disable Time 2.0 12.5

ns

Figure

5

t

PLZ

2.0 12.5

Capacitance

Symbol Parameter Max Units Conditions

T

A

=

25˚C

C

IN

Input Capacitance 10.0 pF V

CC

=

0.0V

C

OUT

(Note 3) Output Capacitance 12.0 pF V

CC

=

5.0V

Note 3: C

OUT

is measured at frequency of f=1 MHz, per MIL-STD-883B, Method 3012.

54FCT541

www.national.com3

AC Loading

AC Waveforms

DS100953-3

*Includes jig and probe capacitance

FIGURE 1. Standard AC Test Load

DS100953-4

FIGURE 2. Test Input Signal Levels

Amplitude Rep. Rate t

w

t

r

t

f

3.0V 1 MHz 500 ns 2.5 ns 2.5 ns

FIGURE 3. Test Input Signal Requirements

DS100953-5

FIGURE 4. Propagation Delay Waveforms for

Inverting and Non-Inverting Functions

DS100953-7

FIGURE 5. TRI-STATE Output HIGH and LOW

Enable and Disable Time

54FCT541

www.national.com 4

Physical Dimensions inches (millimeters) unless otherwise noted

20-Terminal Ceramic Chip Carrier

NS Package Number E20A

20-Lead Ceramic Dual-In-Line Package

NS Package Number J20A

54FCT541

www.national.com5

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:

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systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.

2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.

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20-Lead Ceramic Flatpack

NS Package Number W20A

54FCT541 Octal Buffer/Line Driver with TRI-STATE Outputs

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.