<PAGE> 1
PROSPECTUS SUPPLEMENT FILED PURSUANT TO RULE 424(B)(4)
TO PROSPECTUS DATED JULY 1, 1999 REGISTRATION NO. 333-80611
$345,000,000
[LSI Logic Logo]
4 1/4% Convertible Subordinated Notes due 2004 and Shares of Common Stock
This prospectus supplement relates to the resale by the selling securityholders
of 4 1/4% convertible subordinated notes due 2004 of LSI Logic Corporation and
the shares of common stock, par value of $0.01 per share, of LSI Logic
Corporation issuable upon the conversion of the notes.
This prospectus supplement should be read in conjunction with the prospectus
dated July 1, 1999, and the prospectus supplements dated July 22, 1999, August
23, 1999, October 4, 1999, November 9, 1999, and December 10, 1999 which are 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.
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<TABLE>
<CAPTION>
PRINCIPAL NUMBER OF
AMOUNT OF SHARES OF PERCENTAGE
NOTES BENEFICIALLY PERCENTAGE OF COMMON STOCK OF COMMON
OWNED THAT NOTES THAT MAY BE STOCK
NAME MAY BE SOLD OUTSTANDING SOLD(1) OUTSTANDING(2)
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<S> <C> <C> <C> <C>
Credit Suisse First Boston Corporation............ $13,759,000 3.99% 877,683 *
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Deutsche Bank Securities.......................... 17,650,000 5.11% 1,125,889 *
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Hull Overseas Ltd................................. 150,000 * 9,568 *
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ICI American Holdings Trust....................... 1,145,000 * 73,039 *
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Morgan Stanley Dean Witter........................ 250,000 * 15,947 *
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Sage Capital...................................... 250,000 * 15,947 *
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Transamerica Life Insurance & Annuity Company..... 5,000,000 1.45% 318,949 *
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Zeneca Holdings Trust............................. 760,000 * 48,480 *
</TABLE>
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* Less than 1%
(1) Assumes conversion of the full amount of notes held by such holder at the
conversion price of $15.6765 per share (adjusted from the initial conversion
price of $31.353, pursuant to a two-for-one stock split effective February
4, 2000 and distributed on February 16, 2000); 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 302,820,164 shares of common stock outstanding as of
March 22, 2000, 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 7 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 COMMISSION 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 MARCH 23, 2000.
