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                                                                     Exhibit 4.4




                 LEVEL ONE COMMUNICATIONS, INCORPORATED, Company


                          INTEL CORPORATION, Guarantor

                                       and

             STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A,
                                     Trustee



                             SUPPLEMENTAL INDENTURE

                           Dated as of August 10, 1999

                                       To

                                    INDENTURE

                           Dated as of August 15, 1997



                                   Relating to

                     Level One Communications, Incorporated

                        4% Convertible Subordinated Notes
                                    Due 2004

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     This SUPPLEMENTAL INDENTURE, dated as of the 10th day of August, 1999, by
and among LEVEL ONE COMMUNICATIONS, INCORPORATED, a corporation duly organized
and existing under the laws of the State of Delaware (the "Company"), INTEL
CORPORATION, a corporation duly organized and existing under the laws of the
State of Delaware (the "Guarantor"), and STATE STREET BANK AND TRUST COMPANY OF
CALIFORNIA, N.A., a national banking association and Trustee under the Indenture
(as hereinafter defined) (the "Trustee").

                              W I T N E S S E T H:

     WHEREAS, the Company and the Trustee have heretofore entered into that
certain Indenture, dated as of August 15, 1997 (the "Indenture"), providing for
the issuance of 4% Convertible Subordinated Notes Due 2004 (the "Notes") in the
aggregate principal amount not to exceed one hundred fifteen million dollars
($115,000,000);

     WHEREAS, the Company, Intel RSW Corporation, a Delaware corporation
("RSW"), and the Guarantor have entered into an Agreement and Plan of Merger,
dated as of March 4, 1999, (the "Merger Agreement"), pursuant to which RSW will
merge (the "Merger") with and into the Company, the Company will then become a
wholly-owned subsidiary of Guarantor, and each share of the Company's Common
Stock outstanding immediately prior to the effective time of the Merger (the
"Effective Time") will be converted into the right to receive 0.86 shares of
Common Stock of the Guarantor in accordance with the terms of the Merger
Agreement;

     WHEREAS, Section 12.1 of the Indenture permits the Company to merge with
another corporation provided certain conditions are satisfied;

     WHEREAS, Section 15.6 of the Indenture provides, among other things, that
if any merger of the Company with another corporation occurs as a result of
which holders of Company Common Stock shall be entitled to receive stock,
securities or other property or assets (including cash) with respect to or in
exchange for such Common Stock, then the Company or the successor or purchasing
corporation, as the case may be, shall execute with Trustee a supplemental
indenture providing that each Note shall be convertible into the kind and amount
of shares of stock and other securities or property or assets (including cash)
receivable upon such merger by a holder of a number of shares of Company Common
Stock issuable upon conversion of such Notes immediately prior to such merger.
Section 15.6 of the Indenture further provides that, if in the case of any such
merger the stock or other securities and assets receivable thereupon by a holder
of shares of Company Common Stock includes shares of stock or other securities
and assets of a corporation other than the successor or purchasing corporation,
as the case may be, in such consolidation, merger, or combination, then such
supplemental indenture shall also be executed by such other corporation and
shall contain such additional provisions to protect the interests of the holders
of the Notes as the Company's Board of Directors shall reasonably consider
necessary by reason of the foregoing, including to the extent practicable the
provisions providing for the repurchase rights set forth in Article XVI therein;

     WHEREAS, the Guarantor is willing to guarantee, on a subordinated basis as
set forth more fully herein, the payment of the principal of, premium, if any,
and interest on the Notes;


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     WHEREAS, Section 11.1 of the Indenture authorizes the Company, with the
consent of the Trustee, to supplement or amend the Indenture to comply with
Section 15.6 thereof and to correct or supplement provisions of or make other
provisions with respect to matters or questions arising under the Indenture that
do not adversely affect the rights of any Noteholder and the Trustee is
authorized by Section 11.1 of the Indenture to execute this Supplemental
Indenture without the consent of the holders of the Notes;

     WHEREAS, the Company and the Guarantor desire to execute a supplemental
indenture that complies with Section 11.1 of the Indenture;

     WHEREAS, all acts and things necessary to make this Supplemental Indenture
a valid and binding agreement for the purposes and objects herein expressed have
been duly done and performed, and the execution of this Supplemental Indenture
has been in all respects, duly authorized;

     WHEREAS, the foregoing recitals are made as representations or statements
of fact by the Company or the Guarantor, as applicable, and not by the Trustee;
and

     NOW, THEREFORE, in consideration of the premises and of other good and
valuable consideration, the receipt of which is hereby acknowledged, the Company
and the Guarantor hereby covenant and agree with the Trustee, for the equal and
proportionate benefit of the respective holders from time to time of the Notes,
to amend, modify and supplement the Indenture as follows:


                                    ARTICLE I

             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

     Section 1.1. The Form of Note (including the Form of Reverse of Note)
attached as Exhibit A to the Indenture is hereby amended by deleting all
references to "Common Stock of the Company" or "Company's Common Stock" and
inserting in lieu thereof the words "Common Stock."

     Section 1.2. The Form of Reverse of Note attached as Exhibit A to the
Indenture is hereby further amended by:

          (a)  Deleting the reference to "$40" as it appears in the twelfth
paragraph thereof and inserting in lieu thereof the dollar amount of
"$31.00775194";

          (b)  Deleting the second sentence of the twelfth paragraph thereof in
its entirety;

          (c)  Deleting the sixteenth paragraph and inserting in lieu thereof
the following paragraph:

          No recourse for the payment of the principal of or any premium or
          interest on this Note, or for any claim based hereon or otherwise in
          respect hereof, and no recourse under or upon any obligation, covenant
          or agreement of the Company or the Guarantor in the Indenture or any
          indenture supplemental thereto or in any Note, or because of the
          creation of any indebtedness represented thereby or the


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          guarantee by the Guarantor thereof, shall be had against any
          incorporator, stockholder, officer or director, as such, past, present
          or future, of the Company or the Guarantor or of any respective
          successor corporation, either directly or through the Company or the
          Guarantor or any respective successor corporation, whether by virtue
          of any constitution, statute or rule of law or by the enforcement of
          any assessment or penalty or otherwise, all such liability being, by
          the acceptance hereof and as part of the consideration for the issue
          hereof, expressly waived and released; provided, however, that the
          foregoing shall not affect or impair the obligations of the Guarantor
          hereunder.

     Section 1.3. The terms defined in this Section 1.3 (except as herein
otherwise expressly provided or unless the context otherwise requires) for all
purposes of this Supplemental Indenture shall have the respective meanings
specified in this Section 1.3. All other terms used in this Supplemental
Indenture which are defined in the Indenture, the Trust Indenture Act of 1939 or
which are by reference therein defined in the Securities Act of 1933, as amended
(except as herein otherwise expressly provided or unless the context otherwise
requires), shall have the meanings assigned to such terms in the Indenture, said
Trust Indenture Act and in said Securities Act as in force at the date of the
execution of this Supplemental Indenture. The words "herein," "hereof" and
"hereunder," and words of similar import, refer to this Supplemental Indenture
as a whole and not to any particular Article, Section or other Subsection. The
terms defined in this Article include the plural as well as the singular.

          (a)  The definition of "Common Stock" contained in Section 1.1 of the
Indenture is hereby amended by deleting said definition in its entirety and
inserting in lieu thereof the following definition:

               Common Stock: The term "Common Stock" shall mean any stock of any
          class of Guarantor which has no preference in respect of dividends or
          of amounts payable in the event of any voluntary or involuntary
          liquidation, dissolution or winding up of the Guarantor and which is
          not subject to redemption by the Guarantor. Subject to the provisions
          of Section 15.6, however, shares issuable on conversion of Notes shall
          include only shares of the class designated as Common Stock of the
          Guarantor at the date of this Supplemental Indenture or shares of any
          class or classes resulting from any reclassification or
          reclassifications thereof and which have no preference in respect of
          dividends or of amounts payable in the event of any voluntary or
          involuntary liquidation, dissolution or winding up of the Guarantor
          and which are not subject to redemption by the Guarantor; provided
          that if at any time there shall be more than one such resulting class,
          the shares of each such class then so issuable shall be substantially
          in the proportion which the total number of shares of such class
          resulting from all such reclassifications bears to the total number of
          shares of all such classes resulting from all such reclassifications.

          (b)  Section 1.1 of the Indenture is hereby amended to add the
following definitions:

               Guarantor: The term "Guarantor" shall mean Intel Corporation, a
          Delaware corporation, and shall include its successors and assigns.


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               Guarantor Board of Directors: The term "Guarantor Board of
          Directors" shall mean the Board of Directors of the Guarantor or a
          committee of such Board duly authorized to act for it hereunder.

               Guarantor Senior Indebtedness: The term "Guarantor Senior
          Indebtedness" shall mean the principal of, premium, if any, and
          interest on, and any other payment due pursuant to the terms of an
          instrument (including, without limitation, fees, expenses, collection
          expenses (including attorneys' fees), interest yield amounts,
          post-petition interest and taxes) creating, securing or evidencing any
          of the following, whether outstanding at the date hereof or hereafter
          incurred or created:

          (a)  all indebtedness of the Guarantor evidenced by notes, debentures,
bonds or other similar instruments or securities (including, without limitation,
those which are convertible or exchangeable for securities of the Guarantor);

          (b)  all indebtedness of the Guarantor for money borrowed (including
any indebtedness secured by a mortgage, conditional sales contract or other lien
which is (i) given to secure all or part of the purchase price of property
subject thereto, whether given to the vendor of such property or to another or
(ii) existing on property at the time of acquisition thereof);

          (c)  all indebtedness or other obligations of the Guarantor with
respect to interest rate, currency, equity and other swap agreements, cap, floor
and collar agreements, currency spot and forward contracts, and similar
agreements and arrangements;

          (d)  all indebtedness or other obligations of the Guarantor with
respect to letters of credit (including reimbursement obligations with respect
thereto), bank guarantees and bankers' acceptances;

          (e)  all lease obligations of the Guarantor which are required or
permitted to be capitalized on the books of the Guarantor in accordance with
generally accepted accounting principles;

          (f)  all indebtedness of others of the kinds described in the
preceding clauses (a), (b), (c) or (d) and all lease obligations of others of
the kind described in the preceding clause (e) assumed by or guaranteed in any
manner by the Guarantor or in effect guaranteed by the Guarantor through an
agreement to purchase, contingent or otherwise, and all obligations of the
Guarantor under any such guarantee or other arrangements; and

          (g)  all renewals, extensions or refundings of indebtedness of the
kinds described in any of the preceding clauses (a), (b), (c), (d), or (f) and
all renewals or extensions of lease obligations of the kinds described in either
of the preceding clauses (e) or (f);


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          unless, in the case of a particular indebtedness, lease, renewal,
          extension or refunding, the instrument or lease creating or evidencing
          the same or the assumption or guarantee of the same expressly provides
          that such indebtedness, lease, renewal, extension or refunding is not
          superior in right of payment to or is pari passu with or is
          subordinated or junior to, the Guarantor's obligations under the
          Guaranty. Notwithstanding the foregoing, Guarantor Senior Indebtedness
          shall not include: (i) indebtedness evidenced by the Guaranty or
          otherwise in respect of the Notes; (ii) any indebtedness or lease
          obligation of any kind of the Guarantor to any subsidiary of the
          Guarantor; and (iii) indebtedness for trade payables or constituting
          the deferred purchase price of assets or services created or assumed
          by the Guarantor in the ordinary course of business.

               Guaranty: The term "Guaranty" shall mean the subordinated
          guaranty by the Guarantor to the holders of the Notes dated as of the
          date this Supplemental Indenture in the form of Exhibit A to the
          Supplemental Indenture, dated as of August 10, 1999.

               Resolution of Guarantor Board of Directors: The term "Resolution
          of Guarantor Board of Directors" means a copy of a resolution
          certified by the Secretary or an Assistant Secretary of the Guarantor
          to have been duly adopted by the Guarantor Board of Directors, or a
          duly authorized committee thereof (to the extent permitted by
          applicable law), and to be in full force and effect on the date of
          such certification, and delivered to the Trustee.


                                   ARTICLE II

                               CONVERSION OF NOTES

     Section 2.1. Section 15.2 of the Indenture is hereby amended by adding the
words "or shall cause the Guarantor to" immediately after the words "the Company
shall" that appear in the first sentence of the third paragraph thereof.

     Section 2.2. Section 15.4 of the Indenture is hereby amended by deleting
such Section in its entirety and inserting in lieu thereof the following:

               Section 15.4 Conversion Price. The conversion price (herein
          called the "Conversion Price") shall be, subject to adjustment as
          provided in this Article XV, $31.00775194 per share of Common Stock.

     Section 2.3. Subsections (a) through (i) and (m) of Section 15.5 of the
Indenture are hereby amended by (i) deleting all references therein to "the
Company" and inserting in lieu thereof "the Guarantor," (ii) deleting all
references therein to "the Board of Directors" and inserting in lieu thereof
"the Guarantor Board of Directors," and (iii) deleting all references therein to
"Board Resolution" and inserting in lieu thereof "Resolution of Guarantor Board
of Directors."

     Section 2.4. Section 15.6 of the Indenture is hereby amended by deleting
all references to "the Company" and inserting in lieu thereof "the Guarantor."


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         Section  2.5.  Section  15.7 of the  Indenture  is  hereby  amended  by
deleting  such  Section  in its  entirety  and  inserting  in lieu  thereof  the
following:

               Section 15.7 Taxes on Shares Issued. The issue of stock
          certificates on conversions of Notes shall be made without charge to
          the converting Noteholder for any tax in respect of the issue thereof.
          Neither the Company nor the Guarantor shall be required to pay any tax
          which may be payable in respect of any transfer involved in the issue
          and delivery of stock in any name other than that of the holder of any
          Note converted, and neither the Company nor the Guarantor shall be
          required to issue or deliver any such stock certificate unless and
          until the person or persons requesting the issue thereof shall have
          paid to the Guarantor the amount of such tax or shall have established
          to the satisfaction of the Company and the Guarantor that such tax has
          been paid.

     Section 2.6. Section 15.8 of the Indenture and the third sentence of
Section 15.9 of the Indenture are hereby amended by deleting all references to
"the Company" and to insert in lieu thereof the words "the Guarantor."

     Section 2.7. Section 15.10 of the Indenture is hereby amended by deleting
all references to "the Company" in clauses (a) through (d) thereof and inserting
in lieu thereof the words "the Guarantor."


                                   ARTICLE III

                      CERTAIN, REPRESENTATIONS, WARRANTIES
                         AND COVENANTS OF THE GUARANTOR

     Section 3.1. The Guarantor hereby represents, warrants and covenants that
(a) immediately after the Effective Time, no condition or event shall exist
which constitutes or would, after notice or lapse of time or both, constitute a
"default" or an "Event of Default" (both as defined in the Indenture), (b) it
has complied, or has caused the Company to comply, and will comply, or will
cause the Company to comply, with all applicable provisions of the Indenture and
(c) it has been authorized by the Guarantor Board of Directors to execute this
Supplemental Indenture.


                                   ARTICLE IV

                       REPURCHASE UPON A REPURCHASE EVENT

     Section 4.1. Section 16.2(f) of the Indenture is hereby amended by deleting
the reference to "the Company" appearing in the first sentence thereof and
inserting in lieu thereof the words "the Guarantor."

     Section 4.2. Section 16.2(h) of the Indenture is hereby amended by deleting
such Section in its entirety and inserting in lieu thereof the following:

          (h)  Any issuance and delivery of certificates for shares of Common
Stock on repurchase of Notes shall be made without charge to the holder of Notes
being repurchased for such certificates or for any tax or duty in respect of the
issuance or delivery of such certificates or the securities represented thereby;
provided, however, that neither the Company nor the Guarantor shall be required
to pay any tax or duty which may be payable in respect of (i) income


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of the holder, or (ii) any transfer involved in the issue and delivery of
certificates for shares of Common Stock in any name other than that of the
holder of the Notes being repurchased, and neither the Company nor the Guarantor
shall be required to issue or deliver any such stock certificate unless and
until the person or persons requesting the issue thereof shall have paid to the
Company the amount of such tax or duty or shall have established, to the
satisfaction of the Company and the Guarantor, that such tax or duty has been
paid.

     Section 4.3. Section 16.3(d) of the Indenture is hereby amended by deleting
the reference to "the Company" appearing in the first sentence thereof and
inserting in lieu thereof the words "the Guarantor."

     Section 4.4. Section 16.4(c) of the Indenture is hereby amended by:

          (a)  Deleting the references to "the Company's Board of Directors"
appearing therein and inserting in lieu thereof the words "the Guarantor's Board
of Directors;"

          (b)  Deleting the reference to the date "August 27, 1997" as it
appears in the first sentence thereof and inserting in lieu thereof the date
"August 10, 1999;" and

          (c)  Deleting the reference to "the Company" as it appears in the
second sentence thereof and inserting in lieu thereof the words "the Guarantor."

     Section 4.5. Section 16.4(e) of the Indenture is hereby amended by deleting
the references to "the Company" appearing therein and inserting in lieu thereof
the words "the Guarantor."


                                    ARTICLE V

                                GUARANTY OF NOTES

     Section 5.1. Guaranty of Notes. The Indenture is hereby amended to add the
following provisions as a new Article XVIII to be inserted immediately following
Article XVII of the Indenture.


                                  ARTICLE XVIII

                              TERMS OF THE GUARANTY

     Section 18.1. Guaranty Subordinated to Guarantor Senior Indebtedness. All
payments pursuant to the Guaranty by the Guarantor shall be subordinated in
accordance with the following provisions of this Article XVIII to the prior
payment in full of all Guarantor Senior Indebtedness, whether outstanding at the
date of the Guaranty or thereafter incurred or created.

     Section 18.2. Payments to Noteholders. No direct or indirect payment shall
be made on the Guaranty by the Guarantor, if there shall have occurred and be
continuing (a) any default in the payment of principal, premium, if any, or
interest on any Guarantor Senior Indebtedness continuing beyond the period of
grace, if any, specified in the instrument or lease evidencing such Guarantor
Senior Indebtedness with respect to Guarantor Senior Indebtedness, or (b) any
other default with respect to any Guarantor Senior Indebtedness permitting the
acceleration


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thereof and such default is the subject of a judicial proceeding or the
Guarantor receives notice of such a default from the holders of an aggregate of
not less than $50,000,000 aggregate principal amount of such Guarantor Senior
Indebtedness (provided, however, that in the case of Guarantor Senior
Indebtedness issued pursuant to an indenture such notice may be validly given
only by the trustee under such indenture), unless and until such default or
event of default shall have been cured or waived or shall have ceased to exist.

     Upon any acceleration of the principal of the Notes or any payment by the
Guarantor, or distribution of assets of the Guarantor of any kind or character,
whether in cash, property or securities, to creditors upon any dissolution or
winding-up or liquidation or reorganization of the Guarantor, whether voluntary
or involuntary or in bankruptcy, insolvency, receivership or other proceedings,
all amounts due or to become due upon all Guarantor Senior Indebtedness shall
first be paid in full in money or money's worth, or payment thereof provided for
in accordance with its terms, before any payment is made by the Guarantor
pursuant to the Guaranty on account of the principal of (and premium, if any) or
interest on the Notes; and upon any such dissolution or winding-up or
liquidation or reorganization, any payment by the Guarantor, or distribution of
assets of the Guarantor of any kind or character, whether in cash, property or
securities, to which the holders of the Notes or the Trustee would be entitled
pursuant to or with respect to the Guaranty except for the provisions of this
Article XVIII, shall (except as aforesaid) be paid by the Guarantor or by any
receiver, trustee in bankruptcy, liquidating trustee, agent or other Person
making such payment or distribution, or by the holders of the Notes or by the
Trustee under this Indenture if received by them or it, directly to the holders
of Guarantor Senior Indebtedness (pro rata to such holders on the basis of the
respective amounts of Guarantor Senior Indebtedness held by such holders, as
calculated by the Guarantor) or their representative or representatives, or to
the trustee or trustees under any indenture pursuant to which any instruments
evidencing any Guarantor Senior Indebtedness may have been issued, as their
respective interests may appear, to the extent necessary to pay all Guarantor
Senior Indebtedness in full in money or money's worth, after giving effect to
any concurrent payment or distribution to or for the holders of Guarantor Senior
Indebtedness, before any payment or distribution is made to the holders of the
Notes or to the Trustee pursuant to the Guaranty.

     In the event that, notwithstanding the foregoing, any payment by or
distribution of assets of the Guarantor of any kind or character, whether in
cash, property or securities, prohibited by the foregoing, shall be received by
the Trustee or the holders of the Notes before all Guarantor Senior Indebtedness
is paid in full in money or money's worth, or provision is made for such
payment, and if such fact shall then have been made known to a Responsible
Officer of the Trustee or, as the case may be, such Noteholder, then and in such
event such payment or distribution shall be paid over or delivered to the
holders of Guarantor Senior Indebtedness or their representative or
representatives, or to the trustee or trustees under any indenture pursuant to
which any instruments evidencing any Guarantor Senior Indebtedness may have been
issued, as their respective interests may appear, for application to the payment
of all Guarantor Senior Indebtedness remaining unpaid to the extent necessary to
pay all Guarantor Senior Indebtedness in full in money or money's worth, after
giving effect to any concurrent payment or distribution to or for the holders of
such Guarantor Senior Indebtedness (but subject to the power of a court of
competent jurisdiction to make other equitable provision, which shall have been
determined by such court to give effect to the rights conferred in this Article
XVIII upon the Guarantor Senior


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Indebtedness and the holders thereof with respect to Notes or the holders
thereof or the Trustee, by a lawful plan of reorganization or readjustment under
applicable bankruptcy law).

     The consolidation of the Guarantor with, or the merger of the Guarantor
into, another corporation or the liquidation or dissolution of the Guarantor
following the conveyance or transfer of its property as an entirety, or
substantially as an entirety, to another corporation upon the terms and
conditions provided for in Section 18.9 hereof shall not be deemed a
dissolution, winding-up, liquidation or reorganization for the purposes of this
Section 18.2 if such other corporation shall, as a part of such consolidation,
merger, conveyance or transfer, comply with the conditions stated in Section
18.9 hereof.

     The holders of Guarantor Senior Indebtedness may, at any time and from time
to time, without the consent of or notice to the holders of the Notes, without
incurring responsibility to the holders of the Notes and without impairing or
releasing the obligations of the holders of the Notes hereunder to the holders
of Guarantor Senior Indebtedness: (i) change the manner, place or terms of
payment or change or extend the time of payment of, or renew or alter, Guarantor
Senior Indebtedness, or otherwise amend in any manner Guarantor Senior
Indebtedness or any instrument evidencing the same or any agreement under which
Guarantor Senior Indebtedness is outstanding; (ii) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing
Guarantor Senior Indebtedness; (iii) release any Person liable in any manner for
the collection of Guarantor Senior Indebtedness; and (iv) exercise or refrain
from exercising any rights against the Guarantor and any other Person.

     Section 18.3. Payments May Be Paid Prior to Dissolution. Nothing contained
in this Article XVIII shall prevent (i) the Guarantor, except under the
conditions described in Section 18.2, from making payments on the Guaranty at
any time, or (ii) the application by the Trustee of any monies deposited with it
for the purpose of making such payments pursuant to the Guaranty, to the holders
entitled thereto unless at least three Business Days prior to the date upon
which such payment would otherwise (except for the prohibitions contained in
Section 18.2) become due and payable, the Trustee shall have received the
written notice provided for in Section 18.6.

     Section 18.4. Trustee to Take Action to Effectuate Subordination. The
Trustee shall take such action on behalf of each holder of Notes as may be
necessary or appropriate to effectuate, as between the holders of Guarantor
Senior Indebtedness and the Noteholders, the subordination as provided in this
Article XVIII.

     Section 18.5. Subrogation of Notes. Subject to the payment in full of all
Guarantor Senior Indebtedness, the holders of the Notes shall be subrogated to
the rights of the holders of Guarantor Senior Indebtedness to receive payments
or distributions of cash, property or securities of the Guarantor applicable to
the Guarantor Senior Indebtedness to the extent that amounts otherwise payable
to such holders of Notes or otherwise distributable in respect of the Notes to
such holders of Notes pursuant to or with respect to the Guaranty shall instead
have been paid to the holders of Guarantor Senior Indebtedness pursuant to this
Article XVIII until all amounts due under the Guaranty shall be paid in full;
and, for the purposes of such subrogation, no payments or distributions to the
holders of the Guarantor Senior Indebtedness of any cash, property or securities
to which the holders of the Notes or the Trustee would be entitled pursuant to
or with respect to the Guaranty except for the provisions of this Article XVIII,
and no payments over


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pursuant to the provisions of this Article XVIII, to or for the benefit of the
holders of Guarantor Senior Indebtedness by holders of the Notes or the Trustee,
shall, as between the Guarantor, its creditors other than holders of Guarantor
Senior Indebtedness, and the holders of the Notes, be deemed to be a payment by
the Guarantor to or on account of the Guarantor Senior Indebtedness; it being
understood that the provisions of this Article XVIII are and are intended solely
for the purpose of defining the relative rights of the holders of the Notes, on
the one hand, and the holders of the Guarantor Senior Indebtedness, on the other
hand.

     Nothing contained in this Article XVIII or elsewhere in this Indenture or
in the Notes is intended to or shall impair, as between the Guarantor, its
creditors other than the holders of Guarantor Senior Indebtedness, and the
holders of the Notes, the obligation of the Guarantor, which is absolute and
unconditional, to pay to the holders of the Notes the principal of (and premium,
if any) and interest on the Notes as and when the same shall become due and
payable in accordance with the provisions of the Guaranty, or is intended to or
shall affect the relative rights of the holders of the Notes and creditors of
the Guarantor other than the holders of the Guarantor Senior Indebtedness, nor
shall anything herein or therein prevent the Trustee or the holder of any Note
from exercising all remedies otherwise permitted by applicable law upon default
under this Indenture, subject to the rights, if any, under this Article XVIII of
the holders of Guarantor Senior Indebtedness in respect of cash, property or
securities of the Guarantor received pursuant to the Guaranty upon the exercise
of any such remedy.

     Upon any payment or distribution of assets of the Guarantor referred to in
this Article XVIII, the Trustee, subject to the provisions of the Guaranty, and
the holders of the Notes shall be entitled to rely upon any order or decree made
by any court of competent jurisdiction in which such dissolution, winding-up,
liquidation or reorganization proceedings are pending, or a certificate of the
receiver, trustee in bankruptcy, liquidating trustee, agent or other Person
making such payment or distribution, delivered to the Trustee or to the holders
of the Notes, for the purpose of ascertaining the Persons entitled to
participate in such distribution, the holders of the Guarantor Senior
Indebtedness and other indebtedness of the Guarantor, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all other
facts pertinent thereto or to this Article XVIII.

     Section 18.6. Notices to Trustee and Guarantor Senior Indebtedness. The
Guarantor shall give prompt written notice in the form of an Officers'
Certificate to a Responsible Officer of the Trustee of any fact known to the
Guarantor which would prohibit the making of any payment of monies to or by the
Trustee in respect of the Guaranty pursuant to the provisions of this Article
XVIII. Notwithstanding the provisions of this Article XVIII or any other
provision of this Indenture, the Trustee shall not be charged with knowledge of
the existence of any facts which would prohibit the making of any payment of
monies to or by the Trustee with respect to any monies deposited with the
Trustee by the Guarantor pursuant to the Guaranty in respect of the Notes
pursuant to the provisions of this Article XVIII, unless and until a Responsible
Officer of the Trustee shall have received written notice thereof at the
Corporate Trust Office of the Trustee from the Guarantor or a holder or holders
of Guarantor Senior Indebtedness or from any representative or trustee thereof
(provided, however, that in the case of Guarantor Senior Indebtedness issued
pursuant to an indenture such notice may be validly given only by the trustee
under such indenture); and before the receipt of any such written notice, the
Trustee, subject to the provisions of Section 8.1 shall be entitled in all
respects to assume that no such facts exist;


                                       11

   12

provided, however, that if the Trustee shall not have received at least three
Business Days prior to the date upon which by the terms hereof any such monies
may become payable for any purpose (including, without limitation, the payment
of the principal of (or premium, if any) or interest on any Note) with respect
to such monies the notice provided for in this Section 18.6, then, anything
herein contained to the contrary notwithstanding, the Trustee shall have full
power and authority to receive such monies and to apply the same to the purpose
for which they were received, and shall not be affected by any notice to the
contrary which may be received by it within three Business Days prior to such
date; provided, further, that the immediately preceding proviso shall not apply
to any notice provided for in this Section 18.6 in the event such notice is
received and acknowledged by a Responsible Officer of the Trustee at least one
Business Day prior to such date.

     The Trustee shall be entitled to rely on the delivery to it of a written
notice by a Person representing himself to be a holder of Guarantor Senior
Indebtedness (or a trustee on behalf of such holder) to establish that such
notice has been given by a holder of Guarantor Senior Indebtedness or a
representative of or trustee on behalf of any such holder or holders. In the
event that the Trustee determines in good faith that further evidence is
required with respect to the right of any Person as a holder of Guarantor Senior
Indebtedness to participate in any payment or distribution pursuant to this
Article XVIII, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of Guarantor Senior
Indebtedness held by such Person, the extent to which such Person is entitled to
participate in such payment or distribution and any other facts pertinent to the
rights of such Person under this Article XVIII, and if such evidence is not
furnished, the Trustee may defer any payment to such Person pending judicial
determination as to the right of such Person to receive such payment.

     Section 18.7. Trustee's Relation to Guarantor Senior Indebtedness. The
Trustee in its individual capacity shall be entitled to all the rights set forth
in this Article XVIII in respect of any Guarantor Senior Indebtedness at any
time held by it, to the same extent as any other holder of Guarantor Senior
Indebtedness, and nothing in this Section 18.7 or elsewhere in this Indenture
shall deprive the Trustee of any of its rights as such holder.

     With respect to the holders of Guarantor Senior Indebtedness, the Trustee
undertakes to perform or to observe only such of its covenants and obligations
as are specifically set forth in this Article XVIII, and no implied covenants or
obligations with respect to the holders of Guarantor Senior Indebtedness shall
be read into this Indenture against the Trustee. The Trustee shall not owe any
fiduciary duty to the holders of Guarantor Senior Indebtedness, but shall have
only such obligations to such holders as are expressly set forth in this Article
XVIII.

     Section 18.8. No Impairment of Subordination. No right of any present or
future holder of any Guarantor Senior Indebtedness to enforce subordination as
herein provided shall at any time in any way be prejudiced or impaired by any
act or failure to act on the part of the Guarantor (including by way of an
amendment to the provisions of this Article XVIII) or by any act or failure to
act, in good faith, by any such holder, or by any noncompliance by the Guarantor
with the terms, provisions and covenants of this Indenture, regardless of any
knowledge thereof which any such holder may have or otherwise be charged with.


                                       12

   13

     Section 18.9. Guarantors May Consolidate, Etc., on Certain Terms.

          (a)  Except as set forth in Article XII, nothing contained in this
Indenture or in any of the Notes shall prevent any consolidation or merger of
the Guarantor with or into the Company or shall prevent any sale or conveyance
of the property of the Guarantor or the Company as an entirety or substantially
as an entirety including the sale of the Company in a transaction structured as
a merger, provided that any third party succeeding to the Guarantor's rights
shall execute a guaranty of the Notes substantially similar to the Guaranty.
Upon any such consolidation, merger, sale or conveyance, the Guaranty given by
the Guarantor shall no longer have any force or effect.

          (b)  Nothing contained in this Indenture (including, without
limitation, Section 18.9(a) hereof) or in any of the Notes shall prevent any
consolidation or merger of the Guarantor with or into a corporation or
corporations other than the Company (whether or not affiliated with the
Guarantor), or successive consolidations or mergers in which the Guarantor or
its successor or successors shall be a party or parties, or shall prevent any
sale or conveyance of the property of the Guarantor as an entirety or
substantially as an entirety, to a corporation other than the Company (whether
or not affiliated with the Guarantor) authorized to acquire and operate the
same; provided, however, that the Guarantor hereby covenants and agrees, that,
except as provided in Section 18.9(a), upon any such consolidation, merger, sale
or conveyance, the Guaranty, and the due and punctual performance and observance
of all of the covenants and conditions of this Indenture to be performed by the
Guarantor, shall be expressly assumed (in the event that the Guarantor is not
the surviving corporation in the merger), by supplemental indenture satisfactory
in form to the Trustee, executed and delivered to the Trustee, by the
corporation formed by such consolidation, or into which the Guarantor shall have
been merged, or by the corporation which shall have acquired such property. In
case of any such consolidation, merger, sale or conveyance and upon the
assumption by the successor corporation, by supplemental indenture, executed and
delivered to the Trustee and satisfactory in form to the Trustee, of the
Guaranty and the due and punctual performance of all of the covenants and
conditions of this Indenture to be performed by the Guarantor, such successor
corporation shall succeed to and be substituted for the Guarantor, with the same
effect as if it had been named herein as a Guarantor. Such successor corporation
thereupon may cause to be signed any Guaranty issuable hereunder which
theretofore shall not have been signed by the Guarantor and delivered to the
Trustee.

     Section 18.10. Termination of Guaranty. This Guaranty shall terminate upon
the earliest of (i) the date in which there are no Notes outstanding under the
Indenture, (ii) the occurrence of an event described in Section 18.9(a), or
(iii) the date on which the provisions of Article XIII of the Indenture have
been satisfied in full.

     Section 18.11. Guaranty Solely a Corporate Obligation. No recourse for the
payment of the principal of or interest on any Note, or for any claim based
thereon or otherwise in respect thereof, and no recourse under or upon any
obligation, covenant or agreement of the Guarantor in this Indenture or in any
supplemental indenture, or in any Note or Guaranty, or because of the creation
of any indebtedness represented thereby or the guarantee by the Guarantor
thereof, shall be had against any incorporator, stockholder, employee, agent,
officer or director or subsidiary, as such, past, present or future, of the
Guarantor or of any respective successor corporation.


                                       13

   14

                                   ARTICLE VI

                            MISCELLANEOUS PROVISIONS

     Section 6.1. This Supplemental Indenture shall become effective at the
Effective Time.

     Section 6.2. This Supplemental Indenture shall be governed by and construed
in accordance with the Laws of the State of New York, without regard to the
principles of conflicts of laws thereof.

     Section 6.3. Nothing in this Supplemental Indenture, expressed or implied,
shall give or be construed to give any person, firm or corporation, other than
the parties hereto and their successors hereunder, and the holders of the Notes
or the holders of Guarantor Senior Indebtedness, any legal or equitable right,
remedy or claim under or in respect to this Supplemental Indenture, or under any
covenant, condition or provision herein contained; all such covenants,
conditions and provisions being for the sole benefit of the parties hereto and
their successors hereunder and the holders of the Notes.

     Section 6.4. After the Effective Time, any Notes authenticated and
delivered in substitution for, or in lieu of, Notes then outstanding and all
Notes presented or delivered to the Trustee on and after the Effective Time for
such purpose shall be either restated to give the effect to the Supplemental
Indenture or, in lieu thereof, stamped with a notation substantially as follows:

               The principal amount of this Note has become convertible into
          shares of the Common Stock of Intel Corporation at a conversion price
          per share of $31.00775194, such conversion price being subject to
          certain adjustments as set forth in the Indenture. Reference herein to
          "Common Stock of the Company" or the "Company's Common Stock" shall be
          deemed to be to the Common Stock of Intel Corporation. The payment of
          principal of, premium, if any, and interest on the Notes has been
          guaranteed by Intel Corporation on a subordinated basis as set forth
          in the Indenture.

     Nothing contained in this Supplemental Indenture shall require the holder
of any Note to submit or exchange such Note prior to the Effective Time in order
to obtain the benefits of the Guaranty or any other provisions hereunder.

     The Company agrees to provide the Trustee with a stamp or means of
reproducing the above legend on the Notes without materially obscuring the text
of the Notes.

     Anything herein contained to the contrary notwithstanding, the Trustee
shall not at any time be under any responsibility to acquire or cause any Note
now or hereafter outstanding to be presented or delivered to it for any purpose
provided for in this Section 6.4.

     Section 6.5. By its exection of this Supplemental Indenture, the Guarantor
agrees to be bound by the terms of the Indenture applicable to it.


                                       14

   15

     Except as expressly supplemented by this Supplemental Indenture, the
Indenture, the Notes and the charge and obligation created thereby are in all
respects ratified and confirmed and all of the rights, remedies, terms,
conditions, covenants and agreements of the Indenture and the Notes issued
thereunder shall remain in full force and effect.

     Section 6.6. If any provision of this Supplemental Indenture limits,
qualifies or conflicts with (a) another provision of this Supplemental
Indenture, or (b) any provision of the Indenture, which is required to be
included by any of the provisions of Section 310 to 317, inclusive, of the Trust
Indenture Act of 1939, such required provision shall control.

     Section 6.7. The recitals contained in this Supplemental Indenture shall be
taken as statements of the Company or the Guarantor, as applicable, and the
Trustee assumes no responsibility for their correctness. The Trustee makes no
representations as to the validity or sufficiency of this Supplemental
Indenture.

     Section 6.8. This Supplemental Indenture may be executed in any number of
counterparts, each of which shall be an original; but such counterparts shall
together constitute but one and the same instrument.

                         [SIGNATURES ON FOLLOWING PAGE]


                                       15

   16

     IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed, and their respective corporate seals to be
hereunto affixed and attested, all as of the day and year first above written.


                                        LEVEL ONE COMMUNICATIONS, INCORPORATED


                                        By: /s/ Robert S. Pepper
                                           -------------------------------------
                                        Name:  Robert S. Pepper
                                        Title: President and Chief Executive
                                               Officer

Attest:

/s/ John Kehoe
- ---------------------------------------
Name:  John Kehoe
Title: Senior Vice President, Chief
       Financial Officer and Secretary

                                         INTEL CORPORATION


                                         By: /s/ Arvind Sodhani
                                            ------------------------------------
                                         Name:  Arvind Sodhani
                                         Title: Vice President and Treasurer

Attest:

/s/ Cary I. Klafter
- ---------------------------------------
Name: Cary I. Klafter
Title: Assistant Secretary

                                         STATE STREET BANK AND TRUST
                                         COMPANY OF CALIFORNIA, N.A., as Trustee



                                         By: /s/ Scott C. Emmons
                                            ------------------------------------


       [Signature Page to Supplemental Indenture among Intel Corporation,
          Level One Communications, Incorporated and State Street Bank
                     and Trust Company of California, N.A.]

   17

                                                                       Exhibit A

                                    GUARANTY

     Subject to the next paragraph below, Intel Corporation, a Delaware
corporation ("Intel") hereby irrevocably and unconditionally guarantees on a
subordinated basis to the holders of 4% Convertible Subordinated Notes Due 2004
(the "2004 Notes") issued by Level One Communications, Incorporated (the
"Company") under an Indenture dated as of August 15, 1997 between the Company
and State Street Bank and Trust Company of California, N.A., a national banking
association, as trustee (the "Trustee"), as supplemented by the Supplemental
Indenture, dated as of August 10, 1999 (the "Supplemental Indenture"), among the
Company, Intel and the Trustee, and to the Trustee and its successors and
assigns, irrespective of the validity and enforceability of the Indenture and
the 2004 Notes, that (i) the principal and premium, if any, of, and interest on
the 2004 Notes promptly will be paid in full in cash when due, whether at the
stated maturity, by acceleration, call for redemption or otherwise, and interest
on the overdue principal and interest, if any, of the 2004 Notes, if lawful, and
all other obligations of the Company to the holders of the 2004 Notes or the
Trustee hereunder or thereunder will be promptly paid in full or performed, all
in accordance with the terms hereof and thereof, and (ii) in case of any
extension of time of payment or renewal of any 2004 Notes or any of such other
obligations, the same will be promptly paid in full when due or performed in
accordance with the terms of the extension or renewal, whether at the stated
maturity, by acceleration or otherwise. Failing payment when due by the Company
of any amount so guaranteed for whatever reason, the undersigned shall be
obligated to pay the same immediately. Intel hereby agrees that its obligations
hereunder shall be unconditional, irrespective of the validity, regularity or
enforceability of the 2004 Notes or the Indenture, the absence of any action to
enforce the same, any waiver or consent by any holder of the 2004 Notes with
respect to any provisions hereof or thereof, the recovery of any judgment
against the Company, any action to enforce the same or any other circumstance
which might otherwise constitute a legal or equitable discharge or defense of a
guarantor. Intel hereby waives diligence, presentment, demand of payment, filing
of claims with a court in the event of insolvency or bankruptcy of the Company,
any right to require a proceeding first against the Company, protest, notice and
all demands whatsoever and covenants that this Guaranty shall not be discharged
except by complete performance of the obligations contained in the 2004 Notes
and the Indenture. If any holder of 2004 Notes or the Trustee is required by any
court or otherwise to return to the Company or any custodian, Trustee,
liquidator or other similar official acting in relation to the Company, any
amount paid by the Company to the Trustee or such holder, this Guaranty, to the
extent theretofore discharged, shall be reinstated in full force and effect. The
undersigned agrees that it shall not be entitled to any right of subrogation in
relation to the holders of 2004 Notes in respect of any obligations guaranteed
hereby until payment in full of all obligations is guaranteed hereby.

     It is the intention of Intel and the Company that the obligations of the
undersigned hereunder shall be, but not in excess of, the maximum amount
permitted by applicable law. Accordingly, if the obligations in respect of the
Guaranty would be annulled, avoided or subordinated to the creditors of the
undersigned by a court of competent jurisdiction in

   18

a proceeding actually pending before such court as a result of a determination
both that this Guaranty was made without fair consideration and, immediately
after giving effect thereto, the undersigned was insolvent or unable to pay its
debts as they mature or left with an unreasonably small capital, then the
obligations of the undersigned under this Guaranty shall be reduced by such
court if such reduction would result in the avoidance of such annulment,
avoidance or subordination; provided, however, that any reduction pursuant to
this paragraph shall be made in the smallest amount as is strictly necessary to
reach such result. For purposes of this paragraph, "for consideration,"
"insolvency," "unable to pay its debts as they mature," "unreasonably small
capital" and the effective times of reductions, if any, required by this
paragraph shall be determined in accordance with applicable law.

     The undersigned shall be subrogated to all rights of the holders of 2004
Notes against the Company in respect of any amounts paid by the undersigned
pursuant to the provisions of this Guaranty or the Indenture; provided, however,
that the undersigned shall not be entitled to enforce or to receive any payments
arising out of, or based upon, such right of subrogation until the principal of,
and interest on all 2004 Notes issued hereunder shall have been paid in full.

     The obligations of the undersigned under this Guaranty shall be, to the
extent and in the manner set forth in the Indenture, junior and subordinated to
the Guarantor Senior Indebtedness on the same basis as the 2004 Notes are junior
and subordinated to Senior Indebtedness.

     THIS GUARANTY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
INTERNAL LAWS OF THE STATE OF NEW YORK.

     The validity and enforceability of this Guaranty shall not be affected by
the fact that it is not affixed to any particular 2004 Note.

     The obligations of the undersigned to the holders of the 2004 Notes and to
the Trustee pursuant to this Guaranty and the Indenture are expressly set forth
in Article V of the Supplemental Indenture and reference is hereby made to the
Supplemental Indenture for the precise terms of this Guaranty and all of the
other provisions of the Indenture to which this Guaranty relates.

     Capitalized terms used in this Guaranty which are not defined herein shall
have the meanings assigned to them in the Indenture, as supplemented.


                                      A-2

   19

     IN WITNESS WHEREOF, the undersigned has caused this Guaranty to be duly
executed.

Dated: August 10, 1999

                                        INTEL CORPORATION


                                        By:
                                           -------------------------------------
                                           Name
                                           Its




            [Guaranty of Level One 4% Convertible Subordinated Notes]


                                      A-3