DM74LS352 - National Semiconductor

TL/F/6425

54LS352/DM74LS352 Dual 4-Line to 1-Line Data Selectors/Multiplexers

June 1989

54LS352/DM74LS352 Dual 4-Line to

1-Line Data Selectors/Multiplexers

General Description

Each of these data selectors/multiplexers contains invert-

ers and drivers to supply fully complementary, on-chip, bi-

nary decoding data selection to the AND-OR-invert gates.

Separate strobe inputs are provided for each of the two

four-line sections.

Features

YInverting version of DM54/74LS153

YPermits multiplexing from N lines to 1 line

YPerforms parallel-to-serial conversion

YStrobe (enable) line provided for cascading (N lines to

n lines)

YHigh fan-out, low-impedance, totem-pole outputs

YTypical average propagation delay times

From data 15 ns

From strobe 19 ns

From select 22 ns

YTypical power dissipation 31 mW

Connection Diagram

Dual-In-Line Package

TL/F/6425–1

Order Number 54LS352DMQB, 54LS352FMQB,

DM74LS352M or DM74LS352N

See NS Package Number J16A, M16A, N16E or W16A

Function Table

Select Data Inputs Strobe Output

Inputs

B A C0 C1 C2 C3 G Y

XXXXXX H H

LL L X X X L H

LL H X X X L L

LH X L X X L H

LH X H X X L L

HL X X L X L H

HL X X H X L L

HH X X X L L H

HH X X X H L L

Select inputs A and B are common to both sections.

HeHigh Level, L eLow Level, X eDon’t Care

C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

Absolute Maximum Ratings (Note)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

Supply Voltage 7V

Input Voltage 7V

Operating Free Air Temperature Range

54LS b55§Ctoa

125§C

DM74LS 0§Ctoa

70§C

Storage Temperature Range b65§Ctoa

150§C

Note:

The ‘‘Absolute Maximum Ratings’’ are those values

beyond which the safety of the device cannot be guaran-

teed. The device should not be operated at these limits. The

parametric values defined in the ‘‘Electrical Characteristics’’

table are not guaranteed at the absolute maximum ratings.

The ‘‘Recommended Operating Conditions’’ table will define

the conditions for actual device operation.

Recommended Operating Conditions

Symbol Parameter 54LS352 DM74LS352 Units

Min Nom Max Min Nom Max

VCC Supply Voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High Level Input Voltage 2 2 V

VIL Low Level Input Voltage 0.7 0.8 V

IOH High Level Output Current b0.4 b0.4 mA

IOL Low Level Output Current 12 8 mA

TAFree Air Operating Temperature b55 125 0 70 §C

Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)

Symbol Parameter Conditions Min Typ Max Units

(Note 1)

VIInput Clamp Voltage VCC eMin, IIeb

18 mA b1.5 V

VOH High Level Output VCC eMin, IOH eMax 54LS 2.5 V

Voltage VIL eMax, VIH eMin DM74 2.7 3.4

VOL Low Level Output VCC eMin, IOL eMax 54LS 0.4

Voltage VIL eMax, VIH eMin DM74 0.35 0.5 V

IOL e4 mA DM74 0.25 0.4

VCC eMin

IIInput Current @Max VCC eMax, VIe10V 54LS 0.1 mA

Input Voltage VCC eMax, VIe7V DM74

IIH High Level Input Current VCC eMax, VIe2.7V 20 mA

IIL Low Level Input Current VCC eMax, VIe0.4V b0.4 mA

IOS Short Circuit VCC eMax 54LS b20 b100 mA

Output Current (Note 2) DM74 b20 b100

ICC Supply Current VCC eMax (Note 3) 6.2 10 mA

Note 1: All typicals are at VCC e5V, TAe25§C.

Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.

Note 3: ICC is measured with all outputs open and all other inputs at ground.

Switching Characteristics at VCC e5V and TAe25§C (See Section 1 for Test Waveforms and Output Load)

From 54LS DM74LS

Symbol Parameter

(Input)

CLe15 pF CLe50 pF Units

To RLe2kX

(Output)

Min Max Min Max

tPLH Propagation Delay Time Data to Y 12 24 ns

Low to High Level Output

tPHL Propagation Delay Time Data to Y 12 35 ns

High to Low Level Output

tPLH Propagation Delay Time Select to Y 22 33 ns

Low to High Level Output

tPHL Propagation Delay Time Select to Y 38 47 ns

High to Low Level Output

tPLH Propagation Delay Time Strobe to Y 15 29 ns

Low to High Level Output

tPHL Propagation Delay Time Strobe to Y 20 41 ns

High to Low Level Output

Logic Diagram

TL/F/6425–2

Physical Dimensions inches (millimeters)

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

Order Number 54LS352DMQB

NS Package Number J16A

16-Lead Small Outline Molded Package (M)

Order Number DM74LS352M

NS Package Number M16A

Physical Dimensions inches (millimeters) (Continued)

16-Lead Molded Dual-In-Line Package (N)

Order Number DM74LS352N

NS Package Number N16E

54LS352/DM74LS352 Dual 4-Line to 1-Line Data Selectors/Multiplexers

Physical Dimensions inches (millimeters) (Continued)

16-Lead Ceramic Flat Package (W)

Order Number 54LS352FMQB

NS Package Number W16A

LIFE SUPPORT POLICY

NATIONAL’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 NATIONAL

SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or 2. A critical component is any component of a life

systems which, (a) are intended for surgical implant support device or system whose failure to perform can

into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life

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.

National Semiconductor National Semiconductor National Semiconductor National Semiconductor

Corporation Europe Hong Kong Ltd. Japan Ltd.

1111 West Bardin Road Fax: (

49) 0-180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2309

Arlington, TX 76017 Email: cnjwge

tevm2.nsc.com Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408

Tel: 1(800) 272-9959 Deutsch Tel: (

49) 0-180-530 85 85 Tsimshatsui, Kowloon

Fax: 1(800) 737-7018 English Tel: (

49) 0-180-532 78 32 Hong Kong

Fran3ais Tel: (

49) 0-180-532 93 58 Tel: (852) 2737-1600

Italiano Tel: (

49) 0-180-534 16 80 Fax: (852) 2736-9960

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