Datasheet 54F253LMQB, 54F253DMQB, 54F253DC Datasheet (NSC)

TL/F/9505

54F/74F253 Dual 4-Input Multiplexer with TRI-STATE Outputs

November 1994

54F/74F253
Dual 4-Input Multiplexer with TRI-STATE

É

Outputs

General Description

The ’F253 is a dual 4-input multiplexer with TRI-STATE

É

outputs. It can select two bits of data from four sources
using common select inputs. The output may be individually
switched to a high impedance state with a HIGH on the
respective Output Enable (OE

) inputs, allowing the outputs

to interface directly with bus oriented systems.

Features

Y

Multifunction capability

Y

Non-inverting TRI-STATE outputs

Y

Guaranteed 4000V minimum ESD protection

Commercial Military

Package

Package Description

Number

74F253PC N16E 16-Lead (0.300×Wide) Molded Dual-In-Line

54F253DM (Note 2) J16A 16-Lead Ceramic Dual-In-Line

74F253SC (Note 1) M16A 16-Lead (0.150×Wide) Molded Small Outline, JEDEC

74F253SJ (Note 1) M16D 16-Lead (0.300×Wide) Molded Small Outline, EIAJ

54F253FM (Note 2) W16A 16-Lead Cerpack

54F253LL (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.

Logic Symbols

TL/F/9505– 3

IEEE/IEC

TL/F/9505– 5

Connection Diagrams

Pin Assignment for

DIP, SOIC and Flatpak

TL/F/9505– 1

Pin Assignment

for LCC

TL/F/9505– 2

TRI-STATEÉis a registered trademark of National Semiconductor Corporation.

C

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

Unit Loading/Fan Out

54F/74F

Pin Names Description

U.L. Input I

IH/IIL

HIGH/LOW Output IOH/I

OL

I0a–I

3a

Side A Data Inputs 1.0/1.0 20 mA/b0.6 mA

I

0b–I3b

Side B Data Inputs 1.0/1.0 20 mA/b0.6 mA

S

0–S1

Common Select Inputs 1.0/1.0 20 mA/b0.6 mA

OE

a

Side A Output Enable Input (Active LOW) 1.0/1.0 20 mA/b0.6 mA

OE

b

Side B Output Enable Input (Active LOW) 1.0/1.0 20 mA/b0.6 mA

Za,Z

b

TRI-STATE Outputs 150/40(33.3)b3 mA/24 mA (20 mA)

Functional Description

This device contains two identical 4-input multiplexers with
TRI-STATE outputs. They select two bits from four sources
selected by common Select inputs (S

0,S1

). The 4-input mul-

tiplexers have individual Output Enable (OE

a

,OEb) inputs
which, when HIGH, force the outputs to a high impedance
(High Z) state. This device is the logic implementation of a
2-pole, 4-position switch, where the position of the switch is
determined by the logic levels supplied to the two select
inputs. The logic equations for the outputs are shown below:

Z

a

e

OE

a

#

(I

0a

#

S

1

#

S

0

a

I

1a

#

S

1

#

S

0

a

I

2a

#

S

1

#

S

0

a

I

3a

#

S

1

#

S0)

Z

b

e

OE

b

#

(I

0b

#

S

1

#

S

0

a

I

1b

#

S

1

#

S

0

a

I

2b

#

S

1

#

S

0

a

I

3b

#

S

1

#

S0)

If the outputs of TRI-STATE devices are tied together, all
but one device must be in the high impedance state to avoid
high currents that would exceed the maximum ratings. De­signers should ensure that Output Enable signals to TRI­STATE devices whose outputs are tied together are de­signed so that there is no overlap.

Truth Table

Select

Data Inputs

Output

Output

Inputs Enable

S0S1I0I1I2I

3

OE Z

X X XXXX H Z
L L LXXX L L
L L HXXX L H
H L XLXX L L

H L XHXX L H
L H XXLX L L
L H XXHX L H
H H XXXL L L
H H XXXH L H

Address inputs S0and S1are common to both sections.
H

e

HIGH Voltage Level

L

e

LOW Voltage Level

X

e

Immaterial

Z

e

High Impedance

Logic Diagram

TL/F/9505– 4

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

2

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

VCCPin 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-STATE Output

b

0.5V toa5.5V

Current Applied to Output

in LOW State (Max) twice the rated I

OL

(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

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 54F 10% V

CC

2.4 I

OH

eb

3mA

74F 10% V

CC

2.5
V Min

I

OH

eb

1mA

74F 10% V

CC

2.4 I

OH

eb

3mA

74F 5% V

CC

2.7 I

OH

eb

1mA

74F 5% V

CC

2.7 I

OH

eb

3mA

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

24 mA

I

IH

Input HIGH 54F 20.0

mA Max V

IN

e

2.7V

Current 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

OZH

Output Leakage Current 50 mA Max V

OUT

e

2.7V

I

OZL

Output Leakage Current

b

50 mA Max V

OUT

e

0.5V

I

OS

Output Short-Circuit Current

b

60

b

150

mA Max

V

OUT

e

0V

b

100

b

225 V

OUT

e

0V

I

ZZ

Bus Drainage Test 500 mA 0.0V V

OUT

e

V

CC

I

CCH

Power Supply Current 11.5 16 mA Max V

O

e

HIGH

I

CCL

Power Supply Current 16 23 mA Max V

O

e

LOW

I

CCZ

Power Supply Current 16 23 mA Max V

O

e

HIGH Z

3

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

t

PLH

Propagation Delay 4.5 8.5 11.5 3.5 15.0 4.5 13.0

ns

t

PHL

Snto Z

n

3.0 6.5 9.0 2.5 11.0 3.0 10.0

t

PLH

Propagation Delay 3.0 5.5 7.0 2.5 9.0 3.0 8.0

ns

t

PHL

Into Z

n

2.5 4.5 6.0 2.5 8.0 2.5 7.0

t

PZH

Output Enable Time 3.0 6.0 8.0 2.5 10.0 3.0 9.0

t

PZL

3.0 6.0 8.0 2.5 10.0 3.0 9.0
ns

t

PHZ

Output Disable Time 2.0 3.7 5.0 2.0 6.5 2.0 6.0

t

PLZ

2.0 4.4 6.0 2.0 8.0 2.0 7.0

4

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 253 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

Physical Dimensions inches (millimeters)

20-Lead Ceramic Leadless Chip Carrier (L)

NS Package Number E20A

5

Physical Dimensions inches (millimeters) (Continued)

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

NS Package Number J16A

16-Lead (0.150×Wide) Molded Small Outline Package, JEDEC (S)

NS Package Number M16A

6

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

7

54F/74F253 Dual 4-Input Multiplexer with TRI-STATE Outputs

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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