Datasheet 54F398LMQB, 54F398DMQB Datasheet (NSC)

TL/F/9533

54F/74F398

#

54F/74F399 Quad 2-Port Register

May 1995

54F/74F398#54F/74F399
Quad 2-Port Register

General Description

The ’F398 and ’F399 are the logical equivalents of a quad
2-input multiplexer feeding into four edge-triggered flip­flops. A common Select input determines which of the two
4-bit words is accepted. The selected data enters the flip­flops on the rising edge of the clock. The ’F399 is the 16-pin
version of the ’F398, with only the Q outputs of the flip-flops
available.

Features

Y

Select inputs from two data sources

Y

Fully positive edge-triggered operation

Y

Both true and complement outputsÐ’F398

Y

Guaranteed 4000V minimum ESD protectionÐ’F399

Commercial Military

Package

Package Description

Number

74F398PC N20A 20-Lead (0.300×Wide) Molded Dual-In-Line

54F398DM (Note 2) J20A 20-Lead Ceramic Dual-In-Line

74F398SC (Note 1) M20B 20-Lead (0.300×Wide) Molded Small Outline, JEDEC

54F398FM (Note 2) W20A 20-Lead Cerpack

54F398LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C

74F399PC N20A 20-Lead (0.300×Wide) Molded Dual-In-Line

54F399DM (Note 2) J20A 20-Lead Ceramic Dual-In-Line

74F399SC (Note 1) M20B 20-Lead (0.300×Wide) Molded Small Outline, JEDEC

74F399SJ (Note 1) M20D 20-Lead (0.300×Wide) Molded Small Outline, EIAJ

54F399FM (Note 2) W20A 20-Lead Cerpack

54F399LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C

Note 1: Devices also available in 13×reel. Use suffixeSCX and SJX.

Note 2: Military grade device with environmental and burn-in processing. Use suffix

e

DMQB, FMQB and LMQB.

Connection Diagrams

’F398

Pin Assignment

for LCC

TL/F/9533– 5

Pin Assignment

for DIP, SOIC and Flatpak

TL/F/9533– 6

TRI-STATEÉis a registered trademark of National Semiconductor Corporation.

C

1995 National Semiconductor Corporation RRD-B30M75/Printed in U. S. A.

Connection Diagrams (Continued)

’F399

TL/F/9533– 7

TL/F/9533– 8

Logic Symbols

’F398

TL/F/9533– 2

’F399

TL/F/9533– 4

IEEE/IEC

’F398

TL/F/9533– 1

’F399

TL/F/9533– 3

Unit Loading/Fan Out

54F/74F

Pin Names Description

U.L. Input I

IH/IIL

HIGH/LOW Output IOH/I

OL

S Common Select Input 1.0/1.0 20 mA/b0.6 mA
CP Clock Pulse Input (Active Rising Edge) 1.0/1.0 20 mA/

b

0.6 mA

I

0a–I0d

Data Inputs from Source 0 1.0/1.0 20 mA/b0.6 mA

I1a–I

1d

Data Inputs from Source 1 1.0/1.0 20 mA/b0.6 mA

Q

a–Qd

Register True Outputs 50/33.3

b

1 mA/20 mA

Qa–Q

d

Register Complementary Outputs (’F398) 50/33.3

b

1 mA/20 mA

2

Functional Description

The ’F398 and ’F399 are high-speed quad 2-port registers.
They select 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 Select input (S) must be
stable only a setup time prior to and hold time after the
LOW-to-HIGH transition of the Clock input for predictable
operation. The ’F398 has both Q and Q

outputs.

Function Table

Inputs Outputs

SI

0

I

1

QQ*

IIXLH

IhXH L
hX I L H
hXhH L

H

e

HIGH Voltage Level

L

e

LOW Voltage Level

h

e

HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock
transition
I

e

LOW Voltage Level one setup time prior to the LOW-to-HIGH clock
transition
X

e

Immaterial
*’F398 only

Logic Diagram

TL/F/9533– 9

*’F398 Only

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

3

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

b

65§Ctoa150§C

Ambient Temperature under Bias

b

55§Ctoa125§C

Junction Temperature under Bias

b

55§Ctoa175§C

Plastic

b

55§Ctoa150§C

V

CC

Pin Potential to

Ground Pin

b

0.5V toa7.0V

Input Voltage (Note 2)

b

0.5V toa7.0V

Input Current (Note 2)

b

30 mA toa5.0 mA

Voltage Applied to Output

in HIGH State (with V

CC

e

0V)

Standard Output

b

0.5V to V

CC

TRI-STATEÉOutput

b

0.5V toa5.5V

Current Applied to Output

in LOW State (Max) twice the rated I

OL

(mA)

ESD Last Passing Voltage (Min)Ð’F399 4000V

Note 1: Absolute maximum 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.

Recommended Operating
Conditions

Free Air Ambient Temperature

Military

b

55§Ctoa125§C

Commercial 0

§

Ctoa70§C

Supply Voltage

Military

a

4.5V toa5.5V

Commercial

a

4.5V toa5.5V

DC Electrical Characteristics

Symbol Parameter

54F/74F

Units V

CC

Conditions

Min Typ Max

V

IH

Input HIGH Voltage 2.0 V Recognized as a HIGH Signal

V

IL

Input LOW Voltage 0.8 V Recognized as a LOW Signal

V

CD

Input Clamp Diode Voltage

b

1.2 V Min I

IN

eb

18 mA

V

OH

Output HIGH 54F 10% V

CC

2.5 I

OH

eb

1mA

Voltage 74F 10% V

CC

2.5 V Min I

OH

eb

1mA

74F 5% V

CC

2.7 I

OH

eb

1mA

V

OL

Output LOW 54F 10% V

CC

0.5
V Min

I

OL

e

20 mA

Voltage 74F 10% V

CC

0.5 I

OL

e

20 mA

I

IH

Input HIGH Current 54F 20.0

mA Max

V

IN

e

2.7V

74F 5.0

I

BVI

Input HIGH Current 54F 100

mA Max

V

IN

e

7.0V

Breakdown Test 74F 7.0

I

CEX

Output HIGH 54F 250

mA Max

V

OUT

e

V

CC

Leakage Current 74F 50

V

ID

Input Leakage

74F 4.75 V 0.0

I

ID

e

1.9 mA

Test All Other Pins Grounded

I

OD

Output Leakage

74F 3.75 mA 0.0

V

IOD

e

150 mV

Circuit Current All Other Pins Grounded

I

IL

Input LOW Current

b

0.6 mA Max V

IN

e

0.5V

I

OS

Output Short-Circuit Current

b

60

b

150 mA Max V

OUT

e

0V

I

CCH

Power Supply Current (’F398) 25 38 mA Max V

O

e

HIGH

I

CCL

Power Supply Current (’F398) 25 38 mA Max V

O

e

LOW

I

CCH

Power Supply Current (’F399) 22 34 mA Max V

O

e

HIGH

I

CCL

Power Supply Current (’F399) 22 34 mA Max V

O

e

LOW

4

AC Electrical Characteristics

74F 54F 74F

T

A

ea

25§C

T

A,VCC

e

Mil TA,V

CC

e

Com

Symbol Parameter V

CC

ea

5.0V
C

L

e

50 pF C

L

e

50 pF

Units

C

L

e

50 pF

Min Typ Max Min Max Min Max

f

max

Input Clock Frequency 100 140 80 100 MHz

t

PLH

Propagation Delay 3.0* 5.7 7.5 3.0 9.5 3.0 8.5

ns

t

PHL

CPtoQorQ 3.0 6.8 9.0 3.0 11.5 3.0 10.0

*’F398 3.3 ns

AC Operating Requirements

74F 54F 74F

Symbol Parameter

T

A

ea

25§C

T

A,VCC

e

Mil TA,V

CC

e

Com Units

V

CC

ea

5.0V

Min Max Min Max Min Max

ts(H) Setup Time, HIGH or LOW 3.0 4.5 3.0
t

s

(L) Into CP 3.0 4.5 3.0

ns

th(H) Hold Time, HIGH or LOW 1.0 1.5 1.0
t

h

(L) Into CP 1.0 1.5 1.0

ts(H) Setup Time, HIGH or LOW 7.5 10.5 8.5
t

s

(L) S to CP (’F398) 7.5 10.5 8.5

ts(H) Setup Time, HIGH or LOW 7.5 9.5 8.5

ns

t

s

(L) S to CP (’F399) 7.5 9.5 8.5

th(H) Hold Time, HIGH or LOW 0 0 0
t

h

(L) StoCP 0 0 0

tw(H) CP Pulse Width 4.0 4.0 4.0

ns

t

w

(L) HIGH or LOW 5.0 7.0 5.0

5

Ordering Information

The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows:

74F 398/399 S C X

Temperature Range Family Special Variations

74F

e

Commercial QBeMilitary grade device with

54F

e

Military environmental and burn-in

processing

Device Type

X

e

Devices shipped in 13×reel

Package Code

Temperature Range

P

e

Plastic DIP

C

e

Commercial (0§Ctoa70§C)

D

e

Ceramic DIP

M

e

Military (b55§Ctoa125§C)

F

e

Flatpak

L

e

Leadless Chip Carrier (LCC)

S

e

Small Outline SOIC JEDEC

SJ

e

Small Outline SOIC EIAJ (74F399 only)

6

Physical Dimensions inches (millimeters)

20-Lead Ceramic Leadless Chip Carrier (L)

NS Package Number E20A

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

NS Package Number J20A

7

Physical Dimensions inches (millimeters) (Continued)

20-Lead (0.300×Wide) Molded Small Outline Package, JEDEC (S)

NS Package Number M20B

20-Lead (0.300×Wide) Molded Small Outline Package, EIAJ (SJ)

NS Package Number M20D

8

Physical Dimensions inches (millimeters) (Continued)

20-Lead (0.300×Wide) Molded Dual-In-Line Package (P)

NS Package Number N20A

9

54F/74F398

#

54F/74F399 Quad 2-Port Register

Physical Dimensions inches (millimeters) (Continued)

20-Lead Ceramic Flatpak (F)

NS Package Number W20A

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