PROSPECTUS SUPPLEMENT                           FILED PURSUANT TO RULE 424(b)(4)
TO PROSPECTUS DATED FEBRUARY 8, 2000                  REGISTRATION NO. 333-93285

                                  $260,000,000

                        LATTICE SEMICONDUCTOR CORPORATION
                 4 3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2006
                           AND SHARES OF COMMON STOCK

       This prospectus supplement relates to the resale by the selling
securityholders of 4 3/4% convertible subordinated notes due 2006 of Lattice
Semiconductor Corporation and the shares of common stock, par value of $0.01 per
share, of Lattice Semiconductor Corporation issuable upon the conversion of the
notes.

       This prospectus supplement should be read in conjunction with the
prospectus dated February 8, 2000, which is to be delivered with this prospectus
supplement. All capitalized terms used but not defined in the prospectus
supplement shall have the meanings given them in the prospectus.

       The table below sets forth information as of the date hereof concerning
beneficial ownership of the notes of the selling securityholders as listed
below. All information concerning beneficial ownership has been furnished by the
selling securityholders.



                                                     PRINCIPAL                             NUMBER OF
                                                  AMOUNT OF NOTES                          SHARES OF
                                                   BENEFICIALLY       PERCENTAGE OF       COMMON STOCK       PERCENTAGE OF
                                                    OWNED THAT            NOTES           THAT MAY BE         COMMON STOCK
NAME                                                MAY BE SOLD        OUTSTANDING          SOLD (1)        OUTSTANDING (2)
- ----                                            ------------------    -------------       ------------      ---------------
                                                                                                
Fulton-DeKalb Hospital DBA Grady
   Health Systems                                     $88,000                 *              2,123                *
Bankers Trust Trustee for Chrysler Corp
   Emp #1 Pension Plan                             $3,894,000                 1.5%          93,967                *
State Street Bank Custodian for GE
   Pension Trust                                   $2,054,000                 *             49,565                *
Franklin and Marshall College                        $290,000                 *              6,998                *
Penn Treaty Network America Insurance
   Company                                           $262,000                 *              6,322                *


- --------------
*Less than 1%
(1)  Assumes conversion of the full amount of notes held by such holder at the
     initial conversion price of $41.440 per share; such conversion price is
     subject to adjustment as described under "Description of Notes --
     Conversion of Notes." Accordingly, the number of shares of common stock
     issuable upon conversion of the Notes may increase or decrease from time to
     time. Under the terms of the Indenture, fractional shares will not be
     issued upon conversion of the notes; cash will be paid in lieu of
     fractional shares, if any.
(2)  Computed in accordance with Rule 13d-3(d)(i) promulgated under the Exchange
     Act and based upon 47,926,112 shares of common stock outstanding as of
     October 2, 1999, treating as outstanding the number of shares of common
     stock shown as being issuable upon the assumed conversion by the named
     holder of the full amount of such holder's notes but not assuming the
     conversion of the notes of any other holder.

                                ---------------

       THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK. SEE "RISK
FACTORS" BEGINNING ON PAGE 6 OF THE PROSPECTUS.

          THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
            SECURITIES AND EXCHANGE COMMISSION NOR HAS THE SECURITIES
              AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COM-
                 MISSION PASSED UPON THE ACCURACY OR ADEQUACY OF
                   THIS PROSPECTUS. ANY REPRESENTATION TO THE
                         CONTRARY IS A CRIMINAL OFFENSE.

                                ---------------

            The date of this Prospectus Supplement is April 11, 2000.