NSC 5962R9218701VSA, 5962R9218701VRA, 5962R9218701V2A, 5962R9218701MSA, 5962R9218701MRA Datasheet

54ACQ245•54ACTQ245
Quiet Series Octal Bidirectional Transceiver with
TRI-STATE

®

Inputs/Outputs

General Description

The ’ACQ/’ACTQ245 contains eight non-inverting bidirec­tional buffers with TRI-STATE outputs and is intended for
bus-oriented applications. Current sinking capability is
24 mAatboth the Aand B ports. The Transmit/Receive(T/R)
input determines the direction of data flow through the bidi­rectional transceiver. Transmit (active-HIGH) enables data
from A ports to B ports; Receive (active-LOW) enables data
from B ports to A ports. The Output Enable input, when
HIGH, disables bothA and B ports by placing them in a HIGH
Z condition.

The ’ACQ/’ACTQ utilizes NSC Quiet Series technology to
guarantee quiet output switching and improve 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 ’ACT245
n 4 kV minimum ESD immunity (’ACQ)
n Standard Military Drawing (SMD)

— ’ACTQ245: 5962-92187
— ’ACQ245: 5962-92177

Logic Symbols

Pin Description

Names

OE

Output Enable Input

T/R

Transmit/Receive Input

A

0–A7

Side A TRI-STATE Inputs or TRI-STATE Outputs

B

0–B7

Side B TRI-STATE Inputs or TRI-STATE Outputs

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.

DS100237-1

IEEE/IEC

DS100237-2

September 1998

54ACQ245

•

54ACTQ245 Quiet Series Octal Bidirectional Transceiver with TRI-STATE

Inputs/Outputs

© 1998 National Semiconductor Corporation DS100237 www.national.com

Connection Diagrams

Truth Table

Inputs Outputs

OE

T/R

L L Bus B Data to Bus A
L H Bus A Data to Bus B
H X HIGH-Z State

H=HIGH Voltage Level
L=LOW Voltage Level
X=Immaterial

Pin Assignment for

DIP and Flatpak

DS100237-3

Pin Assignment

for LCC

DS100237-4

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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)

’ACQ 2.0V to 6.0V
’ACTQ 4.5V to 5.5V

Input Voltage (V

I

) 0VtoV

CC

Output Voltage (VO) 0VtoV

CC

Operating Temperature (TA)

54ACQ/ACTQ −55˚C to +125˚C

Minimum Input Edge Rate ∆V/∆t

’ACQ Devices
V

IN

from 30%to 70%of V

CC

V

CC

@

3.0V, 4.5V, 5.5V 125 mV/ ns

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.

DC Characteristics for ’ACQ Family Devices

54ACQ

Symbol Parameter V

CC

T

A

=

Units Conditions

(V) −55˚C to +125˚C

Guaranteed Limits

V

IH

Minimum High 3.0 2.1 V

OUT

=

0.1V

Level Input 4.5 3.15 V or V

CC

− 0.1V

Voltage 5.5 3.85

V

IL

Maximum Low 3.0 0.9 V

OUT

=

0.1V

Level Input 4.5 1.35 V or V

CC

− 0.1V

Voltage 5.5 1.65

V

OH

Minimum High 3.0 2.9 I

OUT

=

−50 µA
Level Output 4.5 4.4 V
Voltage 5.5 5.4

(Note 2)
V

IN

=

V

IL

or V

IH

3.0 2.4 −12 mA

4.5 3.7 V I

OH

−24 mA

5.5 4.7 −24 mA

V

OL

Maximum Low 3.0 0.1 I

OUT

=

50 µA
Level Output 4.5 0.1 V
Voltage 5.5 0.1

(Note 2)
V

IN

=

V

IL

or V

IH

3.0 0.50 12 mA

4.5 0.50 V I

OL

24 mA

5.5 0.50 24 mA

I

IN

Maximum Input 5.5

±

1.0 µA V

I

=

V

CC

, GND

Leakage Current (Note 4)

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DC Characteristics for ’ACQ Family Devices (Continued)

54ACQ

Symbol Parameter V

CC

T

A

=

Units Conditions

(V) −55˚C to +125˚C

Guaranteed Limits

I

OLD

(Note 3) Minimum
Dynamic Output
Current

5.5 50 mA V

OLD

=

1.65V Max

I

OHD

5.5 −50 mA V

OHD

=

3.85V Min

I

CC

Maximum Quiescent 5.5 80.0 µA V

IN

=

V

CC

Supply Current or GND (Note 4)

I

OZT

Maximum I/O VI(OE)=VIL,V

IH

Leakage Current 5.5

±

5.5 µA V

I

=

V

CC

, GND

V

O

=

V

CC

, GND

V

OLP

Quiet Output 5.0 1.5 V
Maximum Dynamic

V

OL

(Note 5)

V

OLV

Quiet Output 5.0 −1.2 V
Minimum Dynamic

V

OL

(Note 5)

Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: I

IN

and I

CC

@

3.0V are guaranteed to be less than or equal to the respective limit@5.5V VCC.

Note 5: Max number of outputs defined as (n). Data Inputs are driven 0V to 5V; one output

@

GND.

DC 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 6)
V

IN

=

V

IL

or V

IH

4.5 3.70 V I

OH

−24 mA

5.5 4.70 −24 mA

V

OL

Maximum Low Level 4.5 0.1 V I

OUT

=

50 µA

Output Voltage 5.5 0.1

(Note 6)
V

IN

=

V

IL

or V

IH

4.5 0.50 V I

OL

24 mA

5.5 0.50 24 mA

I

IN

Maximum Input 5.5

±

1.0 µA V

I

=

V

CC

, GND

Leakage Current

I

OZT

Maximum TRI-STATE 5.5

±

5.0 µA V

I

=

V

IL,VIH

Leakage Current V

O

=

V

CC

, GND

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DC Characteristics for ’ACTQ Family Devices (Continued)

54ACTQ

Symbol Parameter V

CC

T

A

=

Units Conditions

(V) −55˚C to +125˚C

Guaranteed Limits

I

CCT

Maximum 5.5 1.6 mA V

I

=

V

CC

− 2.1V

I

CC

/Input

I

OLD

(Note 7) Minimum
Dynamic Output
Current

5.5 50 mA V

OLD

=

1.65V Max

I

OHD

5.5 −50 mA V

OHD

=

3.85V Min

I

CC

Maximum Quiescent 5.5 80.0 µA V

IN

=

V

CC

Supply Current or GND

V

OLP

Quiet Output 5.0 1.65 V
Maximum Dynamic

V

OL

(Note 8)

V

OLV

Quiet Output 5.0 −1.2 V
Minimum Dynamic

V

OL

(Note 8)

Note 6: All outputs loaded; thresholds on input associated with output under test.
Note 7: Maximum test duration 2.0 ms, one output loaded at a time.
Note 8: Max number of outputs defined as (n). n−1 Data Inputs are driven 0V to 3V; one output

@

GND.

AC Electrical Characteristics for ’ACQ Devices

54ACQ

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 3.0 1.5 11.5 ns
Data to Output 4.5 1.5 10.0

t

PZL,tPZH

Output Enable Time 3.0 1.5 13.0 ns

4.5 1.5 10.0

t

PHZ,tPLZ

Output Disable Time 3.0 1.5 13.0 ns

4.5 1.5 10.0

Note 9: Voltage Range 5.0 is 5.0V±0.5V

Voltage Range 3.3 is 3.3V

±

0.3V

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AC Electrical Characteristics for ’ACTQ Devices

54ACTQ

V

CC

T

A

=

−55˚C Fig.

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

(Note 10) C

L

=

50 pF

Min Max

t

PHL,tPLH

Propagation Delay 5.0 1.5 9.0 ns
Data to Output

t

PZL,tPZH

Output Enable Time 5.0 1.5 12.0 ns

t

PHZ,tPLZ

Output Disable Time 5.0 1.5 11.5 ns

Note 10: Voltage Range 5.0 is 5.0V±0.5V

Capacitance

Symbol Parameter Typ Units Conditions

C

IN

Input Capacitance 4.5 pF V

CC

=

OPEN

C

I/O

Input/Output 15 pF V

CC

=

5.0V

Capacitance

C

PD

Power Dissipation 80.0 pF V

CC

=

5.0V

Capacitance

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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

54ACQ245

•

54ACTQ245 Quiet Series Octal Bidirectional Transceiver with TRI-STATE

Inputs/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.