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SN54LVC138A, SN74LVC138A

SCAS291W – MARCH 1993 – REVISED OCTOBER 2016

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Product Folder Links: SN54LVC138A SN74LVC138A

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Copyright © 1993–2016, Texas Instruments Incorporated

Table of Contents

1

Features .................................................................. 1

2

Applications ........................................................... 1

3

Description ............................................................. 1

4

Revision History..................................................... 2

5

Pin Configuration and Functions ......................... 3

6

Specifications......................................................... 5

6.1

Absolute Maximum Ratings ...................................... 5

6.2

ESD Ratings.............................................................. 5

6.3

Recommended Operating Conditions ....................... 6

6.4

Thermal Information .................................................. 6

6.5

Electrical Characteristics........................................... 7

6.6

Switching Characteristics—SN54LVC138A .............. 7

6.7

Switching Characteristics—SN74LVC138A .............. 7

6.8

Operating Characteristics.......................................... 8

6.9

Typical Characteristics .............................................. 8

7

Parameter Measurement Information .................. 9

8

Detailed Description ............................................ 10

8.1

Overview ................................................................. 10

8.2

Functional Block Diagram ....................................... 10

8.3

Feature Description................................................. 10

8.4

Device Functional Modes........................................ 11

9

Application and Implementation ........................ 12

9.1

Application Information............................................ 12

9.2

Typical Application .................................................. 12

10

Power Supply Recommendations ..................... 13

11

Layout................................................................... 13

11.1

Layout Guidelines ................................................. 13

11.2

Layout Example .................................................... 13

12

Device and Documentation Support ................. 14

12.1

Related Links ........................................................ 14

12.2

Receiving Notification of Documentation Updates 14

12.3

Community Resources.......................................... 14

12.4

Trademarks ........................................................... 14

12.5

Electrostatic Discharge Caution ............................ 14

12.6

Glossary ................................................................ 14

13

Mechanical, Packaging, and Orderable

Information ........................................................... 14

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision V (November 2013) to Revision W

Page

•

Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation

section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and

Mechanical, Packaging, and Orderable Information section ................................................................................................. 1

•

Deleted Ordering Information table; see Packaging Ordering Addendum at the end of the data sheet................................ 1

•

Changed RθJA values from: 73 to 86.8 (D), 82 to 100.1 (DB), 120 to 122.1 (DGV), 78 to 84 (ZQN), 108 to 108.9

(PW) ....................................................................................................................................................................................... 6

•

Deleted RθJA values for NS and RGY packages ..................................................................................................................... 6

Changes from Revision U (OCTOBER 2012) to Revision V

Page

•

Updated document to new TI data sheet format - no specification changes. ........................................................................ 1

•

Removed Ordering Information table ..................................................................................................................................... 1

•

Added ESD warning ............................................................................................................................................................... 1