JD54F139B2A - NATIONAL SEMICONDUCTOR

TL/F/9479

54F/74F139 Dual 1-of-4 Decoder/Demultiplexer

November 1994

54F/74F139

Dual 1-of-4 Decoder/Demultiplexer

General Description

The ’F139 is a high-speed, dual 1-of-4 decoder/demultiplex-

er. The device has two independent decoders, each accept-

ing two inputs and providing four mutually exclusive active

LOW outputs. Each decoder has an active LOW Enable in-

put which can be used as a data input for a 4-output demul-

tiplexer. Each half of the ’F139 can be used as a function

generator providing all four minterms of two variables.

Features

YMultifunction capability

YTwo completely independent 1-of-4 decoders

YActive LOW mutually exclusive outputs

YGuaranteed 4000V minimum ESD protection

Commercial Military Package Package Description

Number

74F139PC N16E 16-Lead (0.300×Wide) Molded Dual-In-Line

54F139DM (Note 2) J16A 16-Lead Ceramic Dual-In-Line

74F139SC (Note 1) M16A 16-Lead (0.150×Wide) Molded Small Outline, JEDEC

74F139SJ (Note 1) M16D 16-Lead (0.300×Wide) Molded Small Outline, EIAJ

54F139FM (Note 2) W16A 16-Lead Cerpack

54F139LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C

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

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

Logic Symbols Connection Diagrams

TL/F/9479–3

IEEE/IEC

TL/F/9479–7

TL/F/9479–4

Pin Assignment

DIP, SOIC and Flatpak

TL/F/9479–1

Pin Assignment

for LCC

TL/F/9479–2

TRI-STATEÉis a registered trademark of National Semiconductor Corporation.

C1995 National Semiconductor Corporation RRD-B30M75/Printed in U. S. A.

Unit Loading/Fan Out

54F/74F

Pin Names Description U.L. Input IIH/IIL

HIGH/LOW Output IOH/IOL

A0,A

1Address Inputs 1.0/1.0 20 mA/b0.6 mA

EEnable Inputs (Active LOW) 1.0/1.0 20 mA/b0.6 mA

O0–O3Outputs (Active LOW) 50/33.3 b1 mA/20 mA

Functional Description

The ’F139 is a high-speed dual 1-of-4 decoder/demultiplex-

er. The device has two independent decoders, each of

which accepts two binary weighted inputs (A0–A1) and pro-

vides four mutually exclusive active LOW Outputs (O0–O3).

Each decoder has an active LOW enable (E). When E is

HIGH all outputs are forced HIGH. The enable can be used

as the data input for a 4-output demultiplexer application.

Each half of the ’F139 generates all four minterms of two

variables. These four minterms are useful in some applica-

tions, replacing multiple gate functions as shown in

Figure 1

and thereby reducing the number of packages required in a

logic network.

Truth Table

Inputs Outputs

E A0A1O0O1O2O3

HX X H H H H

LL L L H H H

LH L H L H H

LL H H H L H

LH H H H H L

HIGH Voltage Level

LeLOW Voltage Level

XeImmaterial

TL/F/9479–6

FIGURE 1. Gate Functions (each half)

Logic Diagram

TL/F/9479–5

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

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 b65§Ctoa

150§C

Ambient Temperature under Bias b55§Ctoa

125§C

Junction Temperature under Bias b55§Ctoa

175§C

Plastic b55§Ctoa

150§C

VCC Pin Potential to

Ground Pin b0.5V to a7.0V

Input Voltage (Note 2) b0.5V to a7.0V

Input Current (Note 2) b30 mA to a5.0 mA

Voltage Applied to Output

in HIGH State (with VCC e0V)

Standard Output b0.5V to VCC

TRI-STATEÉOutput b0.5V to a5.5V

Current Applied to Output

in LOW State (Max) twice the rated IOL (mA)

ESD Last Passing Voltage (Min) 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 b55§Ctoa

125§C

Commercial 0§Ctoa

70§C

Supply Voltage

Military a4.5V to a5.5V

Commercial a4.5V to a5.5V

DC Electrical Characteristics

Symbol Parameter 54F/74F Units VCC Conditions

Min Typ Max

VIH Input HIGH Voltage 2.0 V Recognized as a HIGH Signal

VIL Input LOW Voltage 0.8 V Recognized as a LOW Signal

VCD Input Clamp Diode Voltage b1.2 V Min IIN eb

18 mA

VOH Output HIGH 54F 10% VCC 2.5 IOH eb

1mA

Voltage 74F 10% VCC 2.5 V Min IOH eb

1mA

74F 5% VCC 2.7 IOH eb

1mA

OL Output LOW 54F 10% VCC 0.5 V Min IOL e20 mA

Voltage 74F 10% VCC 0.5 IOL e20 mA

IIH Input HIGH 54F 20.0

mA Max VIN e2.7V

Current 74F 5.0

IBVI Input HIGH Current 54F 100

mA Max VIN e7.0V

Breakdown Test 74F 7.0

ICEX Output HIGH 54F 250

mA Max VOUT eVCC

Leakage Current 74F 50

VID Input Leakage 74F 4.75 V 0.0 IID e1.9 mA

Test All Other Pins Grounded

IOD Output Leakage 74F 3.75 mA 0.0 VIOD e150 mV

Circuit Current All Other Pins Grounded

IIL Input LOW Current b0.6 mA Max VIN e0.5V

IOS Output Short-Circuit Current b60 b150 mA Max VOUT e0V

ICC Power Supply Current 13 20 mA Max

AC Electrical Characteristics

74F 54F 74F

TAea

25§CTA,V

CC eMil TA,V

CC eCom

Symbol Parameter VCC ea

5.0V CLe50 pF CLe50 pF Units

CLe50 pF

Min Typ Max Min Max Min Max

tPLH Propagation Delay 3.5 5.3 7.5 2.5 12.0 3.0 8.5 ns

tPHL A0or A1to On4.0 6.1 8.0 3.5 9.5 4.0 9.0

tPLH Propagation Delay 3.5 5.4 7.0 3.0 9.0 3.5 8.0 ns

tPHL E1to On3.0 4.7 6.5 2.5 8.0 3.0 7.5

Ordering Information

74F 139 S C X

Temperature Range Family Special Variations

74F eCommercial QB eMilitary grade device with

54F eMilitary environmental and burn-in

processing

Device Type XeDevices shipped in 13×reel

Package Code Temperature Range

PePlastic DIP CeCommercial (0§Ctoa

70§C)

DeCeramic DIP MeMilitary (b55§Ctoa

125§C)

FeFlatpak

LeLeadless Chip Carrier (LCC)

SeSmall Outline SOIC JEDEC

SJ eSmall Outline SOIC EIAJ

Physical Dimensions inches (millimeters)

20-Lead Ceramic Leadless Chip Carrier (L)

NS Package Number E20A

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

NS Package Number J16A

Physical Dimensions inches (millimeters) (Continued)

16-Lead (0.150×Wide) Molded Small Outline Integrated Circuit (S)

NS Package Number M16A

Physical Dimensions inches (millimeters) (Continued)

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

NS Package Number M16D

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

NS Package Number N16E

54F/74F139 Dual 1-of-4 Decoder/Demultiplexer

Physical Dimensions inches (millimeters) (Continued)

16-Lead Ceramic Flatpak (F)

NS Package Number W16A

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failure to perform, when properly used in accordance support device or system, or to affect its safety or

with instructions for use provided in the labeling, can effectiveness.

be reasonably expected to result in a significant injury

to the user.

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