Datasheet 5962R9093401QFA, 5962R9093401QEA, 5962R9093401Q2A, 54ACT399LMQB, 54ACT399JRQMLV Datasheet (NSC)

54ACT399
Quad 2-Port Register

General Description

The ’AC/ACT399 is the logical equivalent of a quad 2-input
multiplexer feedinginto four edge-triggered flip-flops. Acom­mon Select input determines which of the two 4-bit words is
accepted. The selected data enters the flip-flop on the rising
edge of the clock.

Features

n ICCreduced by 50

%

n Select inputs from two data sources
n Fully positive edge-triggered operation
n Outputs source/sink 24 mA
n ACT399 has TTL-compatible inputs

Logic Symbols Connection Diagrams

Pin Names Description

S Common Select Input
CP Clock Pulse Input
I

0a–I0d

Data Inputs from Source 0

I

1a–I1d

Data Inputs from Source 1

Q

a–Qd

Register True Outputs

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

®

is a registered trademark of Fairchild Semiconductor Corporation.

DS100356-1

IEEE/IEC

DS100356-5

Pin Assignment

for DIP and Flatpak

DS100356-3

Pin Assignment

for LCC

DS100356-2

August 1998

54ACT399 Quad 2-Port Register

© 1998 National Semiconductor Corporation DS100356 www.national.com

Functional Description

The ’AC/ACT399 is a high-speed quad 2-port register. It se­lects four bits of data from either of two sources (Ports) un­der control of a common Select input (S). The selected data
is transferred to a 4-bit output register synchronous with the
LOW-to-HIGH transition of the Clock input (CP). The 4-bit
D-type output register is fully edge-triggered. The Data in­puts (I

0x,I1x

) and Selectinput (S) must bestable only asetup
time prior to and hold time after the LOW-to-HIGH transition
of the Clock input for predictable operation.

Function Table

Inputs Outputs

SI

0

I1CP Q Q

LL X

N

LH

LH X

N

HL

HX L

N

LH

HX H

N

HL

H

=

HIGH Voltage Level
L=LOW Voltage Level
X=Immaterial

N

=

LOW-to-HIGH Clock Transition

Logic Diagram

DS100356-4

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

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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

Junction Temperature (T

J

)

CDIP +175˚C

Recommended Operating
Conditions

Supply Voltage (VCC)

’ACT 4.5V to 5.5V

Input Voltage (V

I

) 0VtoV

CC

Output Voltage (VO) 0VtoV

CC

Operating Temperature (TA)

54ACT −55˚C to +125˚C

Minimum Input Edge Rate (∆V/∆t)

’ACT 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 Electrical Characteristics for ’ACT Family Devices

54ACT

Symbol Parameter

V

CC

T

A

=

−55˚C to

+125˚C

Units Conditions

(V) 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

5.5 5.4
(Note 2)

V

IN

=

V

IL

or V

IH

4.5 3.70 V IOH= −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 2)
V

IN

=

V

IL

or V

IH

4.5 0.50 V IOL=24mA

5.5 0.50 I

OL

=24mA

I

IN

Maximum Input 5.5

±

1.0 µA V

I

=

V

CC

, GND

Leakage Current

I

CCT

Maximum ICC/Input 5.5 1.6 mA V

I

=

V

CC

−2.1V

I

OLD

Minimum Dynamic
(Note 3)

5.5 50 mA V

OLD

=

1.65V Max

I

OHD

Output Current 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 Ground

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.

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AC Electrical Characteristics

54ACT

V

CC

TA,V

CC

=

Mil Fig.

Symbol Parameter (V) C

L

=

50 pF Units No.

(Note 4)

Min Max

f

max

Input Clock Frequency 5.0 90 MHz

t

PLH

Propagation Delay 5.0 1.5 10.0 ns
CP to Q

t

PHL

Propagation Delay 5.0 1.5 10.0 ns
CP to Q

Note 4: Voltage Range 5.0 is 5.0V±0.5V

AC Operating Requirements

54ACT

V

CC

T

A

=

−55˚C Units Fig.

Symbol Parameter (V) to +125˚C No.

(Note 5) C

L

=

50 pF

Guaranteed

Minimum

t

s

Setup Time, HIGH or LOW 5.0 3.5 ns
I

n

to CP

t

h

Hold Time, HIGH or LOW 5.0 3.0 ns
I

n

to CP

t

s

Setup Time, HIGH or LOW 5.0 6.0 ns
StoCP

t

h

Hold Time, HIGH or LOW 5.0 2.5 ns
StoCP

t

w

CP Pulse Width, 5.0 5.0 ns
HIGH or LOW

Note 5: 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

PD

Power Dissipation Capacitance 30 pF V

CC

=

5.0V

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Physical Dimensions inches (millimeters) unless otherwise noted

20 Terminal Ceramic Leadless Chip Carrier (L)

NS Package Number E20A

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

NS Package Number J16A

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

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the body, or (b) supportor sustain life, and whosefail­ure to perform when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to resultin asignificant injury
to the user.

2. A critical component in any component of a lifesupport
device or system whose failure to perform can be rea­sonably expected to cause the failureof thelife support
device or system, or toaffect itssafety or effectiveness.

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16-Lead Ceramic Flatpak (IF)

NS Package Number W16A

54ACT399 Quad 2-Port Register

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.