<DOCUMENT>
<TYPE>EX-23.(A)
<SEQUENCE>3
<FILENAME>d80674psex23-a.txt
<DESCRIPTION>CONSENT OF ERNST & YOUNG LLP
<TEXT>

<PAGE>   1
                                                                   EXHIBIT 23(a)



                         CONSENT OF INDEPENDENT AUDITORS


We consent to the reference to our firm under the caption "Experts" in
Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 and
related prospectus of Texas Instruments Incorporated and Texas Instruments
Tucson Corporation (formerly Burr-Brown Corporation) for the deregistration of
4 1/4% convertible subordinated notes due 2007 of Texas Instruments Tucson
Corporation, and to the incorporation by reference therein of our reports dated
January 24, 2000, with respect to the consolidated financial statements of Texas
Instruments Incorporated included in its proxy statement for the 2000 annual
meeting of stockholders and incorporated by reference in its annual report on
Form 10-K for the year ended December 31, 1999 and the related financial
statement schedule, as amended, included in Form 10-K/A, both filed with the
Securities and Exchange Commission.



Dallas, Texas
December 20, 2000


</TEXT>
</DOCUMENT>
