Exhibit 24

AUTHORIZATION


I hereby authorize Cynthia Hoff Trochu, Katharine Kane, Muriel C. McFarling,
Jane S. Nahra, Leslie O. Mba, Ben M. Carter, and Erin E. Hilton or any one
of them to sign and file on my behalf any and all forms required by the
Securities and Exchange Commission pursuant to Section 16 of the Securities
Exchange Act of 1934 (the ?Exchange Act?) relating to the reporting of
beneficial ownership of equity securities of Texas Instruments Incorporated
(the ?Company?), and of changes in such beneficial ownership, as well as any
and all representation letters that may be required in connection with sales
by me of equity securities of the Company, together with any and all
amendments to the foregoing.  This authorization shall be effective on and
after the date set forth below and shall continue in effect, unless earlier
revoked by me in writing, until I am no longer required to file such forms
and letters provided, however, that this authorization shall be deemed
revoked with respect to any individual named above upon such individual?s
termination of active service with the Company.

I acknowledge that the persons authorized hereunder are not assuming, nor is
the Company assuming, any of my responsibilities to comply with Section 16
of the Exchange Act and other relevant securities laws.


Dated as of the 18th day of January 2018.

/s/ Robert E. Sanchez