NSC 54F158ALMQB, 54F158ADMQB Datasheet

54F/74F158A
Quad 2-Input Multiplexer

54F/74F158A Quad 2-Input Multiplexer

November 1994

General Description

The ’F158A is a high speed quad 2-input multiplexer. It se­lects four bits of data from two sources using the common
Select and Enable inputs. The four outputs present the se­lected data in the inverted form. The ’F158A can also gener­ate any four of the 16 different functions of two variables.

Commercial Military

74F158APC N16E 16-Lead (0.300×Wide) Molded Dual-In-Line

54F158ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line

74F158ASC (Note 1) M16A 16-Lead (0.150×Wide) Molded Small Outline, JEDEC

74F158ASJ (Note 1) M16D 16-Lead (0.300×Wide) Molded Small Outline, EIAJ

54F158AFM (Note 2) W16A 16-Lead Cerpack

54F158ALM (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

Package

Number

Features

Y

Guaranteed 4000V minimum ESD protection

Package Description

e

DMQB, FMQB and LMQB.

Logic Symbols Connection Diagrams

Pin Assignment for

DIP, SOIC and Flatpak

Pin Assignment

for LCC

TL/F/9484– 3

IEEE/IEC

TL/F/9484– 5

TRI-STATEÉis a registered trademark of National Semiconductor Corporation.

C

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

TL/F/9484

TL/F/9484– 1

TL/F/9484– 2

Unit Loading/Fan Out

54F/74F

Pin Names Description

I0a–I
I

1a–I1d

E

0d

Source 0 Data Inputs 1.0/1.0 20 mA/b0.6 mA
Source 1 Data Inputs 1.0/1.0 20 mA/b0.6 mA

Enable Input (Active LOW) 1.0/1.0 20 mA/b0.6 mA
S Select Input 1.0/1.0 20 mA/b0.6 mA
Z

a–Zd

Inverted Outputs 50/33.3

U.L. Input I

HIGH/LOW Output IOH/I

IH/IIL

b

1 mA/20 mA

OL

Functional Description

The ’F158A quad 2-input multiplexer selects four bits of
data from two sources under the control of a common Se­lect input (S) and presents the data in inverted form at the
four outputs. The Enable input (E
HIGH, all of the outputs (Z

) is active LOW. When E is

) are forced HIGH regardless of
all other inputs. The ’F158A is the logic implementation of a
4-pole, 2-position switch where the position of the switch is
determined by the logic levels supplied to the Select input.

A common use of the ’F158A is the moving of data from two
groups of registers to four common output busses. The par­ticular register from which the data comes is determined by
the state of the Select input. A less obvious use is as a
function generator. The ’F158A can generate four functions
of two variables with one variable common. This is useful for
implementing gating functions.

Logic Diagram

Truth Table

E SI0I1Z

HXX X H
LLLX H
LLHX L
LHXL H
LHXH L

HeHIGH Voltage Level

e

LOW Voltage Level

L

e

Immaterial

X

e

Ec(I1nSaI0nS)

Z

n

Inputs Outputs

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

2

TL/F/9484– 4

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

Ambient Temperature under Bias

Junction Temperature under Bias

Plastic

Pin Potential to

V

CC

Ground Pin

Input Voltage (Note 2)

Input Current (Note 2)

Voltage Applied to Output

in HIGH State (with V
Standard Output

CC

e

TRI-STATEÉOutput

0V)

b

65§Ctoa150§C

b

55§Ctoa125§C

b

55§Ctoa175§C

b

55§Ctoa150§C

b

0.5V toa7.0V

b

0.5V toa7.0V

b

30 mA toa5.0 mA

b

0.5V to V

b

0.5V toa5.5V

Current Applied to Output

in LOW State (Max) twice the rated I

(mA)

OL

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.

DC Electrical Characteristics

Symbol Parameter

V

V

V

V

V

I

IH

I

BVI

I

CEX

V

I

OD

I

IL

I

OS

I

CCH

I

CCL

IH

IL

CD

OH

OL

ID

Input HIGH Voltage 2.0 V Recognized as a HIGH Signal

Input LOW Voltage 0.8 V Recognized as a LOW Signal

Input Clamp Diode Voltage

Output HIGH 54F 10% V
Voltage 74F 10% V

Output LOW 54F 10% V
Voltage 74F 10% V

Input HIGH 54F 20.0
Current 74F 5.0

Input HIGH Current 54F 100
Breakdown Test 74F 7.0

Output HIGH 54F 250
Leakage Current 74F 50

Input Leakage
Test All Other Pins Grounded

Output Leakage
Circuit Current All Other Pins Grounded

Input LOW Current

Output Short-Circuit Current

Power Supply Current 10 15 mA Max V

Power Supply Current 15 25 mA Max V

74F 5% V

74F 4.75 V 0.0

74F 3.75 mA 0.0

Min Typ Max

2.5 I

CC

2.5 V Min I

CC

2.7 I

CC

CC

CC

b

60

CC

54F/74F

Recommended Operating
Conditions

Free Air Ambient Temperature

Military
Commercial 0

Supply Voltage

Military
Commercial

Units V

b

1.2 V Min I

0.5

0.5 I

CC

V Min

mA Max

mA Max

mA Max

b

0.6 mA Max V

b

150 mA Max V

I

V

V

V

I

V

IN

OH

OH

OH

OL

OL

ID

IN

IN

OUT

IOD

IN

OUT

O

O

eb

eb

eb

eb

e

e

e

e

e

e

1.9 mA

e

e

e

e

e

HIGH

LOW

Conditions

18 mA

1mA
1mA
1mA

20 mA
20 mA

2.7V

7.0V

V

150 mV

0.5V

0V

b

55§Ctoa125§C

Ctoa70§C

§

a

4.5V toa5.5V

a

4.5V toa5.5V

CC

3