Datasheet 74F151ASJX, 74F151ASJ, 74F151ASCX, 74F151ASC, 74F151APC Datasheet (Fairchild Semiconductor)

April 1988
Revised March 1999

74F151A 8-Input Multiplexer

© 1999 Fairchild Semiconductor Corporation DS009481.prf www.fairchildsemi.com

74F151A
8-Input Multiplexer

General Description

The F151A is a high -speed 8-input digital multiplexer. It
provides in one p ackage the ability to select one line of
data from up to eight sources. The F151A can be used as a

universal function gen erator to generate any logic function
of four variables. Both asser tion and negation out puts are
provided.

Ordering Code:

Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering cod e.

Logic Symbols

IEEE/IEC

Connection Diagram

Unit Loading/Fan Out

Order Number Package Number Package Description

74F151ASC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
74F151ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F151APC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Pin Names Description

U.L. Input I

IH/IIL

HIGH/LOW Output IOH/I

OL

I0–I

7

Data Inputs 1.0/1.0 20 µA/−0.6 mA

S

0–S2

Select Inputs 1.0/1.0 20 µA/−0.6 mA

E

Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA
Z Data Output 50/33.3 −1 mA/20 mA
Z

Inverted Data Output 50/33.3 −1 mA/20 mA

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74F151A

Functional Description

The F151A is a logic implementation of a single pole, 8­position switch with the switch position controlled by the
state of three Selec t inputs, S

0

, S1, S2. Both assertion and

negation outputs are provided. The Enable input (E

) is
active LOW. When it is not activated, the negation output is
HIGH and the assertion out put is LOW regardless of all
other inputs. The logic function provided at the output is:

Z = E

• (I0S2S1S0+ I1S2S1S0+ I2S2S1S0+

I

3S2S1S0

+ I4S2S1S0+ I5S2S1S0+

I

6S2S1S0

+ I7S2S1S0)

The F151A prov ides the ability, in one packag e, to select
from eight sources of data or control information. By proper
manipulation of the inputs, the F151A can provide any logic
function of four variables and its negation.

Tr uth Table

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

Logic Diagram

Please note that this diagram is provided o nly f or t he understanding o f lo gic operations and shou ld not be used to estimate propagation delays.

Inputs Outputs

E

S

2

S

1

S

0

Z Z

HXXXHL
LLLLI

0

I

0

LL LHI1I

1

LLH L I2I

2

LLH HI3I

3

LH L L I4I

4

LH L H I5I

5

LHH L I6I

6

LHH H I7I

7

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74F151A

Absolute Maximum Ratings(Note 1) Recommended Operating

Conditions

Note 1: Absolute maximum ratings are values beyon d which the device

may be damaged or have its useful life impaired . Functional operation
under these condit ions is not implied.

Note 2: Either voltage limit or curren t limit is sufficient to protect in puts.

DC Electrical Characteristics

Storage Temperature −65°C to +150°C
Ambient Temperature under Bias −55°C to +125°C
Junction Temperature under Bias −55°C to +175°C

Plastic −55°C to +150°C

V

CC

Pin Potential to

Ground Pin −0.5V to +7.0V
Input Voltage (Note 2) −0.5V to +7.0V
Input Current (Note 2) −30 mA to +5.0 mA
Voltage Applied to Output

in HIGH State (with V

CC

= 0V)

Standard Output −0.5V to V

CC

3-STATE Output −0.5V to +5.5V
Current Applied to Output

in LOW State (Max) twice the rated I

OL

(mA)

Free Air Ambi ent Temperature 0°C to +70°C
Supply Voltage +4.5V to +5.5V

Symbol Parameter Min Typ Max Units

V

CC

Conditions

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 −1.2 V Min IIN = −18 mA

V

OH

Output HIGH 10% V

CC

2.5
VMin

IOH = −1 mA

Voltage 5% V

CC

2.7 IOH = −1 mA

V

OL

Output LOW
Voltage 10% V

CC

0.5 V Min IOL = 20 mA

I

IH

Input HIGH
Current 5.0 µAMaxVIN = 2.7V

I

BVI

Input HIGH Current
Breakdown Test 7.0 µAMaxVIN = 7.0V

I

CEX

Output HIGH
Leakage Current 50 µAMaxV

OUT

= V

CC

V

ID

Input Leakage 4.75 V 0.0 IID = 1.9 µA
Test All Other Pins Grounded

I

OD

Output Leakage 3.75 µA0.0V

IOD

= 150 mV

Circuit Current All Other Pins Grounded

I

IL

Input LOW Current −0.6 mA Max VIN = 0.5V

I

OS

Output Short-Circuit Current −60 −150 mA Max V

OUT

= 0V

I

CC

Power Supply Current 13.5 21.0 mA Max VO = HIGH

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74F151A

AC Electrical Characteristics

Symbol Parameter

TA = +25°CT

A

= 0°C to +70°C

Units

VCC = +5.0V CL = 50 pF

CL = 50 pF

Min Typ Max Min Max

t

PLH

Propagation Delay 4.0 6.2 9.0 3.5 9.5

ns

t

PHL

Sn to Z

3.2 5.2 7.5 3.2 7.5

t

PLH

Propagation Delay 4.5 7.5 10.5 4.5 12.0

ns

t

PHL

Sn to Z 4.0 6.2 9.0 4.0 9.0

t

PLH

Propagation Delay 3.0 4.7 6.1 3.0 7.0 ns

t

PHL

E to Z

3.0 4.4 6.0 2.5 6.0

t

PLH

Propagation Delay 5.0 7.0 9.5 4.0 10.5 ns

t

PHL

E to Z 3 .5 5.3 7.0 3.0 7.5

t

PLH

Propagation Delay 3.0 4.8 6.5 3.0 7.0 ns

t

PHL

In to Z

1.5 2.5 4.0 1.5 5.0

t

PLH

Propagation Delay 3.0 4.8 6.5 2.5 7.5 ns

t

PHL

In to Z 3.7 5.5 7.0 3.7 7.5

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74F151A

Physical Dimensions inches (millimeters) unless otherwise noted

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

Package Number M16A

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

Package Number M16D

Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.

74F151A 8-Input Multiplexer

LIFE SUPPORT POLICY

FAIRCHILD’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 FAIRCHILD
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 (c) 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 inju ry to the
user.

2. A critical component in any compon ent of a life supp ort
device or system whose failu re to perform can be rea­sonably expected to ca use the fa i lure of the life su pp ort
device or system, or to affect its safety or effectiveness.

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

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Package Number N16E