Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

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

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

6 Specifications.................................................................. 4

6.1 Absolute Maximum Ratings........................................ 4

6.2 ESD Ratings............................................................... 4

6.3 Recommended Operating Conditions.........................4

6.4 Thermal Information....................................................5

6.5 Electrical Characteristics: DC..................................... 5

6.6 Electrical Characteristics: AC......................................9

6.7 Typical Characteristics.............................................. 10

7 Parameter Measurement Information.......................... 11

7.1 Test Circuits...............................................................11

8 Detailed Description......................................................13

8.1 Overview................................................................... 13

8.2 Functional Block Diagram......................................... 13

8.3 Feature Description...................................................13

8.4 Device Functional Modes..........................................14

9 Application and Implementation.................................. 15

9.1 Application Information............................................. 15

9.2 Typical Application.................................................... 15

10 Power Supply Recommendations..............................16

11 Layout........................................................................... 16

11.1 Layout Guidelines................................................... 16

11.2 Layout Example...................................................... 16

12 Device and Documentation Support..........................17

12.1 Documentation Support.......................................... 17

12.2 Related Links.......................................................... 17

12.3 Receiving Notification of Documentation Updates..17

12.4 Support Resources................................................. 17

12.5 Trademarks.............................................................17

12.6 Electrostatic Discharge Caution..............................17

12.7 Glossary..................................................................17

13 Mechanical, Packaging, and Orderable

Information.................................................................... 17

4 Revision History

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

Changes from Revision J (September 2016) to Revision K (June 2020)

Page

• Updated the numbering format for tables, figures, and cross-references throughout the document..................1

• Updated Device Information Table with correct package dimensions................................................................ 1

Changes from Revision I (May 2004) to Revision J (September 2016)

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 POA at the end of the data sheet....................................................... 1

• Changed Storage temperature minimum value from 65 to –65..........................................................................4

• Changed RθJA values for the CD4049UB device: D (SOIC) from 73 to 81.6, DW (SOIC) from 57 to 81.6, E

(PDIP) from 67 to 49.5, NS (SO) from 64 to 84.3, and PW (TSSOP) from 108 to 108.9................................... 5

• Changed RθJA values for the CD4050B device: D (SOIC) from 73 to 81.6, DW (SOIC) from 57 to 81.2, E

(PDIP) from 67 to 49.7, NS (SO) from 64 to 83.8, and PW (TSSOP) from 108 to 108.4................................... 5

CD4049UB, CD4050B

SCHS046K – AUGUST 1998 – REVISED JUNE 2020

www.ti.com

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