UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

          Date of Report (Date of earliest event reported): May 4, 2005


                       NATIONAL SEMICONDUCTOR CORPORATION
             (Exact name of registrant as specified in its charter)

        DELAWARE                    1-6453              95-2095071
        --------                    ------              ----------
        (State of Incorporation)    (Commission         (I.R.S. Employer
                                    File Number)        Identification Number)


                    2900 SEMICONDUCTOR DRIVE, P.O. BOX 58090
                       SANTA CLARA, CALIFORNIA 95052-8090
                       ----------------------------------
                    (Address of Principal Executive Offices)

                                 (408) 721-5000

              (Registrant's telephone number, including area code)


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):


[ ] Written communication  pursuant to Rule 425 under the Securities Act (17 CFR
230.425)

[ ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)

[ ] Pre-commencement  communications pursuant to Rule 14d-2(b) under the Act (17
CFR 240.14a-12)

[ ] Pre-commencement  communications pursuant to Rule 13e-4(c) under the Act (17
CFR 240.14a-12)



NATIONAL SEMICONDUCTOR CORPORATION

Table of Contents


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Section 8 - Other Events
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Item 8.01       Other Events                                                   3

Section 9 - Financial Statements and Exhibits
---------------------------------------------

Item 9.01       Financial Statements and Exhibits                              3

Signature                                                                      4

Exhibits:
 99.1     News release dated May 4, 2005



NATIONAL SEMICONDUCTOR CORPORATION

Item 8.01       OTHER EVENTS

     On May 4, 2005, National  Semiconductor  Corporation  announced that it has
finalized  the  sale  of  its PC  Super  I/O  business  to  Winbond  Electronics
Corporation,  based in Hsinchu Science Park,  Taiwan,  R.O.C. A copy of the news
release is attached as Exhibit 99.1.

The  information  contained  in  Exhibit  99.1 shall not be deemed  "filed"  for
purposes of Section 18 of the Securities  Exchange Act of 1934, as amended,  nor
shall it be deemed  incorporated by reference in any filing under the Securities
Act of 1933, as amended.
 
Item 9.01       FINANCIAL STATEMENTS AND EXHIBITS

         (c )  Exhibits
               --------

Exhibit No.     Description of Exhibit
-----------     ----------------------

  99.1          News release dated May 4, 2005 issued by  National Semiconductor
                Corporation*

*This  exhibit is intended to be furnished  and shall not be deemed  "filed" for
purposes of the Securities Exchange Act of 1934, as amended.



                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                         NATIONAL SEMICONDUCTOR CORPORATION

                                         //S// Robert E.  DeBarr
                                         -----------------------
Dated:  May 4, 2005                      Robert E.  DeBarr
                                         Controller
                                         Signing on behalf of the registrant and
                                         as principal accounting officer



News Media:                               Financial:
Jeff Weir                                 Jennifer Stratiff
National Semiconductor                    National Semiconductor
(408) 721-5199 or (408) 242-4827          (408) 721-5007
jeff.weir@nsc.com                         invest.group@nsc.com
-----------------                         --------------------

National Semiconductor Completes Sale of PC
Super I/O Business to Winbond Electronics

SANTA  CLARA,  Calif.  -  May  4,  2005  -  National  Semiconductor  Corporation
(NYSE:NSM)  announced  today  that it has  closed  the sale of its PC Super  I/O
business to Winbond  Electronics  Corporation,  based in Hsinchu  Science  Park,
Taiwan.  National  previously  announced on March 14, 2005, that it had signed a
definitive  agreement on the transaction and that the sale was expected to close
during the fourth  quarter of fiscal 2005,  which ends May 29, 2005. The sale of
this business,  known within National as the Advanced PC division, is consistent
with the company's ongoing focus on core analog businesses.

Pursuant  to the  sale,  Winbond  acquired  intellectual  property,  assets  and
approximately  150 employees from National,  with most of the employees based at
National's  former research and design center in Herzlia,  Israel.  The flagship
products  of the  PC Super I/O  business  include  the  Safekeeper  Trusted  I/O
desktop and notebook devices, keyboard controllers and Server I/O devices.

National's  financial  release and  conference  call for the fourth  quarter are
scheduled  for June 9, 2005.  At that time,  the company will discuss  financial
results  and  forward  outlook,  including  the  impact  from  the  sale of this
business.

About National Semiconductor
National  Semiconductor,  the industry's  premier analog  company,  creates high
performance  analog devices and  subsystems.  National's  leading-edge  products
include  power  management  circuits,  display  drivers,  audio and  operational
amplifiers,  communication  interface  products and data  conversion  solutions.
National's key vertical markets include wireless handsets, displays and laptops.



The company's analog products are also optimized for numerous  applications in a
variety of electronics markets, including medical,  automotive,  industrial, and
test  and  measurement.  Headquartered  in  Santa  Clara,  California,  National
reported  sales of $1.98  billion for fiscal  2004,  which  ended May 30,  2004.
Additional company and product information is available at www.national.com.
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