Datasheet 5962-9218501VSA, 5962-9218501VRA, 5962-9218501V2A, 5962-9218501MSA, 5962-9218501M2A Datasheet (NSC)

54ACTQ241
Quiet Series Octal Buffer/Line Driver with TRI-STATE

®

Outputs

General Description

The ACTQ241 is an octal buffer and line driver designed to
be employed as a memory address driver, clock driver and
bus oriented transmitteror receiver which provides improved
PC board density.TheACTQ utilizes NSC Quiet Series tech­nology to guarantee quiet output switching and improved dy­namic threshold performance. FACT Quiet Series

™

features

GTO

™

output control and undershoot corrector in addition to

a split ground bus for superior performance.

Features

n ICCand IOZreduced by 50

%

n Guaranteed simultaneous switching noise level and

dynamic threshold performance

n Improved latch-up immunity
n TRI-STATE outputs drive bus lines or buffer memory

address registers

n Outputs source/sink 24 mA
n Faster prop delays than the standard ’AC/’ACT241
n 4 kV minimum ESD immunity (’ACTQ)
n Standard Microcircuit Drawing (SMD) 5962-92185

Logic Symbol

Pin Names Description

OE

1

,OE

2

TRI-STATE Output Enable Inputs

I

0–I7

Inputs

O

0–O7

Outputs

Connection Diagrams

GTO™is a trademark of National Semiconductor Corporation.
TRI-STATE

®

is a registered trademark of National Semiconductor Corporation.

FACT

®

is a registered trademark of Fairchild Semiconductor Corporation.

FACT Quiet Series

™

is a trademark of Fairchild Semiconductor Corporation.

IEEE/IEC

DS100246-1

Pin Assignment

for DIP and Flatpak

DS100246-2

Pin Assignment

for LCC

DS100246-3

August 1998

54ACTQ241 Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs

© 1998 National Semiconductor Corporation DS100246 www.national.com

Truth Tables

Inputs Outputs

OE

1

I

n

(Pins 12, 14, 16, 18)

LL L
LH H
HX Z

Inputs Outputs

OE

2

I

n

(Pins 3, 5, 7, 9)

HL L
HH H
HX Z

H

=

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

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Absolute Maximum Ratings (Note 1)

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

Supply Voltage (V

CC

) −0.5V to +7.0V

DC Input Diode Current (I

IK

)

V

I

=

−0.5V −20 mA

V

I

=

V

CC

+ 0.5V +20 mA

DC Input Voltage (V

I

) −0.5V to VCC+ 0.5V

DC Output Diode Current (I

OK

)

V

O

=

−0.5V −20 mA

V

O

=

V

CC

+ 0.5V +20 mA

DC Output Voltage (V

O

) −0.5V to VCC+ 0.5V

DC Output Source

or Sink Current (I

O

)

±

50 mA

DC V

CC

or Ground Current

per Output Pin (I

CC

or I

GND

)

±

50 mA

Storage Temperature (T

STG

) −65˚C to +150˚C

DC Latch-Up Source or

Sink Current

±

300 mA

Junction Temperature (T

J

)

CDIP 175˚C

Recommended Operating
Conditions

Supply Voltage (VCC)

’ACTQ 4.5V to 5.5V

Input Voltage (V

I

) 0VtoV

CC

Output Voltage (VO) 0VtoV

CC

Operating Temperature (TA)

54ACTQ −55˚C to +125˚C

Minimum Input Edge Rate ∆V/∆t

’ACTQ Devices
V

IN

from 0.8V to 2.0V

V

CC

@

4.5V, 5.5V 125 mV/ns

Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom­mend operation of FACT

®

circuits outside databook specifications.

Note 2: All commercial packaging is not recommended for applications re­quiring greater than 2000 temperature cycles from −40˚C to +125˚C.

DC Electrical Characteristics for ’ACTQ Family Devices

54ACTQ

Symbol Parameter V

CC

T

A

=

Units Conditions

(V) −55˚C to +125˚C

Guaranteed Limits

V

IH

Minimum High Level 4.5 2.0 V V

OUT

=

0.1V

Input Voltage 5.5 2.0 or V

CC

− 0.1V

V

IL

Maximum Low Level 4.5 0.8 V V

OUT

=

0.1V

Input Voltage 5.5 0.8 or V

CC

− 0.1V

V

OH

Minimum High Level 4.5 4.4 V I

OUT

=

−50 µA

Output Voltage 5.5 5.4

(Note 3)
V

IN

=

V

IL

or V

IH

4.5 3.70 V I

OH

=

−24 mA

5.5 4.70 I

OH

=

−24 mA

V

OL

Maximum Low Level 4.5 0.1 V I

OUT

=

50 µA

Output Voltage 5.5 0.1

(Note 3)
V

IN

=

V

IL

or V

IH

4.5 0.50 V I

OL

=

24 mA

5.5 0.50 I

OL

=

24 mA

I

IN

Maximum Input 5.5

±

1.0 µA V

I

=

V

CC

, GND

Leakage Current

I

OZ

Maximum TRI-STATE 5.5

±

5.0 µA V

I

=

V

IL,VIH

Leakage Current V

O

=

V

CC

, GND

I

CCT

Maximum ICC/Input 5.5 1.6 mA V

I

=

V

CC

− 2.1V

(Note 4)
Minimum Dynamic
Output Current

I

OLD

5.5 50 mA V

OLD

=

1.65V Max

I

OHD

5.5 −50 mA V

OHD

=

3.85V Min

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DC Electrical Characteristics for ’ACTQ Family Devices (Continued)

54ACTQ

Symbol Parameter V

CC

T

A

=

Units Conditions

(V) −55˚C to +125˚C

Guaranteed Limits

I

CC

Maximum Quiescent 5.5 80.0 µA V

IN

=

V

CC

Supply Current or GND (Note 5)

V

OLP

Quiet Output 5.0 1.5 V
Maximum Dynamic V

OL

(Notes 6, 7)

V

OLV

Quiet Output 5.0 −1.2 V
Minimum Dynamic V

OL

(Notes 6, 7)

Note 3: All outputs loaded; thresholds on input associated with output under test.
Note 4: Maximum test duration 2.0 ms, one output loaded at a time.
Note 5: I

CC

for 54ACTQ@25˚C is identical to 74ACTQ@25˚C.

Note 6: Plastic DIP package.
Note 7: Max number of outputs defined as (n). Data Inputs are driven 0V to 3V. One output

@

GND.

Note 8: Max number of Data Inputs (n) switching. n−1 Inputs switching 0V to 3V (’ACTQ). Input-under-test switching: 3V to threshold (V

ILD

), 0V to threshold (V

IHD

),

f=1 MHz.

AC Electrical Characteristics

54ACTQ

V

CC

T

A

=

−55˚C Fig.

Symbol Parameter (V) to +125˚C Units No.

(Note 9) C

L

=

50 pF

Min Max

t

PHL,tPLH

Propagation Delay 5.0 1.5 8.0 ns

Figure 4

Data to Output

t

PZL,tPZH

Output Enable Time 5.0 1.5 10.5 ns

Figure 5

t

PHZ,tPLZ

Output Disable Time 5.0 1.5 9.5 ns

Figure 5

Note 9: Voltage Range 5.0 is 5.0V±0.5V.
Note 10: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The speci-

fication applies to any outputs switching in the same direction, either HIGH to LOW (t

OSHL

) or LOW to HIGH (t

OSLH

). Parameter guaranteed by design.

Capacitance

Symbol Parameter Typ Units Conditions

C

IN

Input Capacitance 4.5 pF V

CC

=

OPEN

C

PD

Power Dissipation 70 pF V

CC

=

5.0V

Capacitance

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AC Loading

AC Waveforms

DS100246-7

*Includes jig and probe capacitance

FIGURE 1. Standard AC Test Load

DS100246-8

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

DS100246-9

FIGURE 4. Propagation Delay Waveforms for

Inverting and Non-Inverting Functions

DS100246-10

FIGURE 5. TRI-STATE Output HIGH and LOW

Enable and Disable Time

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6

Physical Dimensions inches (millimeters) unless otherwise noted

20-Terminal Ceramic Leadless Chip Carrier (L)

NS Package Number E20A

20-Lead Ceramic Dual-In-Line Package (D)

NS Package Number J20A

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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 OF NATIONAL SEMI­CONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or 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 in 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.

National Semiconductor
Corporation

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20-Lead Ceramic Flatpak (F)

NS Package Number W20A

54ACTQ241 Quiet Series 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.