<PAGE>

      As filed with the Securities and Exchange Commission on May 11, 2001

                                                   Registration No. 333-________

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

                            SILICON LABORATORIES INC.
             (Exact name of registrant as specified in its charter)

            DELAWARE                                      74-2793174
  (State or other jurisdiction                 (IRS Employer Identification No.)
of incorporation or organization)

                                4635 BOSTON LANE
                               AUSTIN, TEXAS 78735
               (Address of principal executive offices) (Zip Code)

                            SILICON LABORATORIES INC.
                            2000 STOCK INCENTIVE PLAN
                          EMPLOYEE STOCK PURCHASE PLAN
                           (Full title of the Plan(s))

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

                                NAVDEEP S. SOOCH
                CHIEF EXECUTIVE OFFICER AND CHAIRMAN OF THE BOARD
                            SILICON LABORATORIES INC.
                                4635 BOSTON LANE
                               AUSTIN, TEXAS 78735
                     (Name and address of agent for service)
                                 (512) 416-8500
          (Telephone Number, including area code, of agent for service)

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

                         CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>

====================================================================================================================================
                                                               Proposed Maximum
                                          Amount to be        Offering Price per          Proposed Maximum            Amount of
Title of Securities to be Registered     Registered(1)             Share(2)          Aggregate Offering Price(2)   Registration Fee
------------------------------------    ----------------      ------------------     ---------------------------   ----------------
<S>                                     <C>                   <C>                    <C>
2000 STOCK INCENTIVE PLAN
Common Stock, $0.0001 par value         2,462,349 shares            $19.64                 $48,360,534.36             $12,090.13

EMPLOYEE STOCK PURCHASE PLAN
Common Stock, $0.0001 par value           240,587 shares            $19.64                  $4,725,128.68             $ 1,181.28
                                        ----------------                                                            ----------------
                                        2,702,936 shares                              Aggregate Registration Fee      $13,271.41
                                        ================                                                            ================
====================================================================================================================================

</TABLE>

(1)   This Registration Statement shall also cover any additional shares of
      Common Stock which become issuable under the Registrant's 2000 Stock
      Incentive Plan and Employee Stock Purchase Plan by reason of any stock
      dividend, stock split, recapitalization or other similar transaction
      effected without the Registrant's receipt of consideration which results
      in an increase in the number of the outstanding shares of Registrant's
      Common Stock.

(2)   Calculated solely for purposes of this offering under Rule 457(h) of the
      Securities Act of 1933, as amended, on the basis of the average of the
      high and low selling price per share of the Registrant's Common Stock on
      May 4, 2001, as reported by the Nasdaq National Market.

                  Pursuant to General Instruction E to Form S-8, this
Registration Statement on Form S-8 registers the offer and sale of an additional
2,702,936 shares of Common Stock of the Registrant for issuance under the
Registrant's 2000 Stock Incentive Plan and Employee Stock Purchase Plan. The
contents of the prior Registration Statement relating to the Plans, Filing No.
333-39528, are incorporated herein by reference.

<PAGE>

                                     PART II

               Information Required in the Registration Statement

Item 3.  INCORPORATION OF DOCUMENTS BY REFERENCE

                  Silicon Laboratories Inc. (the "Registrant") hereby
incorporates by reference into this Registration Statement the following
documents previously filed with the Securities and Exchange Commission (the
"Commission"):

         (a)      The Registrant's Annual Report on Form 10-K for the
                  fiscal year ended December 30, 2000 filed with the Commission
                  on January 22, 2001;

         (b)      The Registrant's Quarterly Report on Form 10-Q, filed with the
                  Commission on April 24, 2001 for the period ended March 31,
                  2001; and

         (c)      The Registrant's Registration Statement No. 000-29823 on Form
                  8-A12G filed with the Commission on March 7, 2000, in which
                  there is described the terms, rights and provisions applicable
                  to the Registrant's outstanding Common Stock.

                  All reports and definitive proxy or information statements
         filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities
         Exchange Act of 1934, as amended (the "1934 Act") after the date of
         this Registration Statement and prior to the filing of a post-effective
         amendment which indicates that all securities offered hereby have been
         sold or which de-registers all securities then remaining unsold shall
         be deemed to be incorporated by reference into this Registration
         Statement and to be a part hereof from the date of filing of such
         documents. Any statement contained in a document incorporated or deemed
         to be incorporated by reference herein shall be deemed to be modified
         or superseded for purposes of this Registration Statement to the extent
         that a statement contained herein or in any subsequently filed document
         which also is deemed to be incorporated by reference herein modifies or
         supersedes such statement. Any such statement so modified or superseded
         shall not be deemed, except as so modified or superseded, to constitute
         a part of this Registration Statement.

Item 8.  EXHIBITS

<TABLE>
<CAPTION>

Exhibit Number     Exhibit
--------------     -------
<S>                <C>
      5            Opinion and consent of Brobeck, Phleger & Harrison LLP.
     23.1          Consent of Ernst & Young LLP, Independent Auditors.
     23.2          Consent of Brobeck, Phleger & Harrison LLP is contained in
                   Exhibit 5.
     24            Power of Attorney.  Reference is made to pages II-2 and
                   II-3 of this Registration Statement.
     99.1          Silicon Laboratories Inc. 2000 Stock Incentive Plan.

</TABLE>



                                      II-1
<PAGE>

                                   SIGNATURES

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, the Registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8, and has duly caused
this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Austin, State of Texas on this 11th
day of May, 2001.

                                       SILICON LABORATORIES INC.

                                       By: /s/ Navdeep S. Sooch
                                           -----------------------
                                           Navdeep S. Sooch
                                           Chief Executive Officer

                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS:

That the undersigned officers and directors of Silicon Laboratories Inc., a
Delaware corporation, do hereby constitute and appoint Navdeep S. Sooch and John
W. McGovern and each of them, the lawful attorneys-in-fact and agents with full
power and authority to do any and all acts and things and to execute any and all
instruments which said attorneys and agents, and any one of them, determine may
be necessary or advisable or required to enable said corporation to comply with
the Securities Act of 1933, as amended, and any rules or regulations or
requirements of the Securities and Exchange Commission in connection with this
Registration Statement. Without limiting the generality of the foregoing power
and authority, the powers granted include the power and authority to sign the
names of the undersigned officers and directors in the capacities indicated
below to this Registration Statement, to any and all amendments, both
pre-effective and post-effective, and supplements to this Registration
Statement, and to any and all instruments or documents filed as part of or in
conjunction with this Registration Statement or amendments or supplements
thereof, and each of the undersigned hereby ratifies and confirms that all said
attorneys and agents, or any one of them, shall do or cause to be done by virtue
hereof. This Power of Attorney may be signed in several counterparts.

                  IN WITNESS WHEREOF, each of the undersigned has executed this
Power of Attorney as of the date indicated.

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, this Registration Statement has been signed below by the following
persons in the capacities and on the dates indicated.

<TABLE>
<CAPTION>

Signature                           Title                                   Date
---------                           -----                                   ----
<S>                                 <C>                                     <C>
                                    Chief Executive Officer and Chairman
/s/ Navdeep S. Sooch                of the Board of Directors (principal    May 11, 2001
----------------------------        executive officer)
Navdeep S. Sooch

                                    Vice President and Chief Financial
/s/ John W. McGovern                Officer (principal financial and        May 11, 2001
----------------------------        accounting officer)
John W. McGovern





                                      II-2

<PAGE>

/s/ Jeffrey W. Scott                Vice President of Engineering and       May 11, 2001
----------------------------        Director
Jeffrey W. Scott


/s/ David R. Welland                Vice President of Technology and        May 11, 2001
----------------------------        Director
David R. Welland


/s/ William P. Wood                 Director                                May 11, 2001
----------------------------
William P. Wood

/s/ H. Berry Cash                   Director                                May 11, 2001
----------------------------
H. Berry Cash

/s/ William G. Bock                 Director                                May 11, 2001
----------------------------
William G. Bock

</TABLE>


                                      II-3

<PAGE>




                       SECURITIES AND EXCHANGE COMMISSION

                                WASHINGTON, D.C.


                                    EXHIBITS

                                       TO

                                    FORM S-8

                                      UNDER

                             SECURITIES ACT OF 1933


                            SILICON LABORATORIES INC.







<PAGE>



                                  EXHIBIT INDEX

<TABLE>
<CAPTION>

Exhibit Number     Exhibit
--------------     -------
<S>                <C>

      5            Opinion and consent of Brobeck, Phleger & Harrison LLP.
     23.1          Consent of Ernst & Young LLP, Independent Auditors.
     23.2          Consent of Brobeck, Phleger & Harrison LLP is contained in
                   Exhibit 5.
     24            Power of Attorney.  Reference is made to pages II-2 and II-3
                   of this Registration Statement.
     99.1          Silicon Laboratories Inc. 2000 Stock Incentive Plan.

</TABLE>
[{"type": "S-8", "sequence": "1", "filename": "a2048718zs-8.txt", "description": "S-8", "secsgml_size_bytes": 12844}]
{"company-data": {"conformed-name": "SILICON LABORATORIES INC", "cik": "0001038074", "assigned-sic": "3674", "irs-number": "742793174", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-60794", "film-number": "1631003"}, "business-address": {"street1": "4635 BOSTON LN", "city": "AUSTIN", "state": "TX", "zip": "78735"}, "mail-address": {"street1": "4635 BOSTON LANE", "city": "AUSTIN", "state": "TX", "zip": "78735"}}
As filed with the Securities and Exchange Commission on May 11, 2001

                                                   Registration No. 333-________

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

                            SILICON LABORATORIES INC.
             (Exact name of registrant as specified in its charter)

            DELAWARE                                      74-2793174
  (State or other jurisdiction                 (IRS Employer Identification No.)
of incorporation or organization)

                                4635 BOSTON LANE
                               AUSTIN, TEXAS 78735
               (Address of principal executive offices) (Zip Code)

                            SILICON LABORATORIES INC.
                            2000 STOCK INCENTIVE PLAN
                          EMPLOYEE STOCK PURCHASE PLAN
                           (Full title of the Plan(s))

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

                                NAVDEEP S. SOOCH
                CHIEF EXECUTIVE OFFICER AND CHAIRMAN OF THE BOARD
                            SILICON LABORATORIES INC.
                                4635 BOSTON LANE
                               AUSTIN, TEXAS 78735
                     (Name and address of agent for service)
                                 (512) 416-8500
          (Telephone Number, including area code, of agent for service)

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

                         CALCULATION OF REGISTRATION FEE
====================================================================================================================================
                                                               Proposed Maximum
                                          Amount to be        Offering Price per          Proposed Maximum            Amount of
Title of Securities to be Registered     Registered(1)             Share(2)          Aggregate Offering Price(2)   Registration Fee
------------------------------------    ----------------      ------------------     ---------------------------   ----------------
2000 STOCK INCENTIVE PLAN
Common Stock, $0.0001 par value         2,462,349 shares            $19.64                 $48,360,534.36             $12,090.13

EMPLOYEE STOCK PURCHASE PLAN
Common Stock, $0.0001 par value           240,587 shares            $19.64                  $4,725,128.68             $ 1,181.28
                                        ----------------                                                            ----------------
                                        2,702,936 shares                              Aggregate Registration Fee      $13,271.41
                                        ================                                                            ================
====================================================================================================================================
(1)   This Registration Statement shall also cover any additional shares of
      Common Stock which become issuable under the Registrant's 2000 Stock
      Incentive Plan and Employee Stock Purchase Plan by reason of any stock
      dividend, stock split, recapitalization or other similar transaction
      effected without the Registrant's receipt of consideration which results
      in an increase in the number of the outstanding shares of Registrant's
      Common Stock.

(2)   Calculated solely for purposes of this offering under Rule 457(h) of the
      Securities Act of 1933, as amended, on the basis of the average of the
      high and low selling price per share of the Registrant's Common Stock on
      May 4, 2001, as reported by the Nasdaq National Market.

                  Pursuant to General Instruction E to Form S-8, this
Registration Statement on Form S-8 registers the offer and sale of an additional
2,702,936 shares of Common Stock of the Registrant for issuance under the
Registrant's 2000 Stock Incentive Plan and Employee Stock Purchase Plan. The
contents of the prior Registration Statement relating to the Plans, Filing No.
333-39528, are incorporated herein by reference.
PART II

               Information Required in the Registration Statement

Item 3.  INCORPORATION OF DOCUMENTS BY REFERENCE

                  Silicon Laboratories Inc. (the "Registrant") hereby
incorporates by reference into this Registration Statement the following
documents previously filed with the Securities and Exchange Commission (the
"Commission"):

         (a)      The Registrant's Annual Report on Form 10-K for the
                  fiscal year ended December 30, 2000 filed with the Commission
                  on January 22, 2001;

         (b)      The Registrant's Quarterly Report on Form 10-Q, filed with the
                  Commission on April 24, 2001 for the period ended March 31,
                  2001; and

         (c)      The Registrant's Registration Statement No. 000-29823 on Form
                  8-A12G filed with the Commission on March 7, 2000, in which
                  there is described the terms, rights and provisions applicable
                  to the Registrant's outstanding Common Stock.

                  All reports and definitive proxy or information statements
         filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities
         Exchange Act of 1934, as amended (the "1934 Act") after the date of
         this Registration Statement and prior to the filing of a post-effective
         amendment which indicates that all securities offered hereby have been
         sold or which de-registers all securities then remaining unsold shall
         be deemed to be incorporated by reference into this Registration
         Statement and to be a part hereof from the date of filing of such
         documents. Any statement contained in a document incorporated or deemed
         to be incorporated by reference herein shall be deemed to be modified
         or superseded for purposes of this Registration Statement to the extent
         that a statement contained herein or in any subsequently filed document
         which also is deemed to be incorporated by reference herein modifies or
         supersedes such statement. Any such statement so modified or superseded
         shall not be deemed, except as so modified or superseded, to constitute
         a part of this Registration Statement.

Item 8.  EXHIBITS
Exhibit Number     Exhibit
--------------     -------
5            Opinion and consent of Brobeck, Phleger & Harrison LLP.
     23.1          Consent of Ernst & Young LLP, Independent Auditors.
     23.2          Consent of Brobeck, Phleger & Harrison LLP is contained in
                   Exhibit 5.
     24            Power of Attorney.  Reference is made to pages II-2 and
                   II-3 of this Registration Statement.
     99.1          Silicon Laboratories Inc. 2000 Stock Incentive Plan.
II-1
SIGNATURES

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, the Registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8, and has duly caused
this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Austin, State of Texas on this 11th
day of May, 2001.

                                       SILICON LABORATORIES INC.

                                       By: /s/ Navdeep S. Sooch
                                           -----------------------
                                           Navdeep S. Sooch
                                           Chief Executive Officer

                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS:

That the undersigned officers and directors of Silicon Laboratories Inc., a
Delaware corporation, do hereby constitute and appoint Navdeep S. Sooch and John
W. McGovern and each of them, the lawful attorneys-in-fact and agents with full
power and authority to do any and all acts and things and to execute any and all
instruments which said attorneys and agents, and any one of them, determine may
be necessary or advisable or required to enable said corporation to comply with
the Securities Act of 1933, as amended, and any rules or regulations or
requirements of the Securities and Exchange Commission in connection with this
Registration Statement. Without limiting the generality of the foregoing power
and authority, the powers granted include the power and authority to sign the
names of the undersigned officers and directors in the capacities indicated
below to this Registration Statement, to any and all amendments, both
pre-effective and post-effective, and supplements to this Registration
Statement, and to any and all instruments or documents filed as part of or in
conjunction with this Registration Statement or amendments or supplements
thereof, and each of the undersigned hereby ratifies and confirms that all said
attorneys and agents, or any one of them, shall do or cause to be done by virtue
hereof. This Power of Attorney may be signed in several counterparts.

                  IN WITNESS WHEREOF, each of the undersigned has executed this
Power of Attorney as of the date indicated.

                  Pursuant to the requirements of the Securities Act of 1933, as
amended, this Registration Statement has been signed below by the following
persons in the capacities and on the dates indicated.
Signature                           Title                                   Date
---------                           -----                                   ----
Chief Executive Officer and Chairman
/s/ Navdeep S. Sooch                of the Board of Directors (principal    May 11, 2001
----------------------------        executive officer)
Navdeep S. Sooch

                                    Vice President and Chief Financial
/s/ John W. McGovern                Officer (principal financial and        May 11, 2001
----------------------------        accounting officer)
John W. McGovern

                                      II-2
/s/ Jeffrey W. Scott                Vice President of Engineering and       May 11, 2001
----------------------------        Director
Jeffrey W. Scott

/s/ David R. Welland                Vice President of Technology and        May 11, 2001
----------------------------        Director
David R. Welland

/s/ William P. Wood                 Director                                May 11, 2001
----------------------------
William P. Wood

/s/ H. Berry Cash                   Director                                May 11, 2001
----------------------------
H. Berry Cash

/s/ William G. Bock                 Director                                May 11, 2001
----------------------------
William G. Bock
II-3
SECURITIES AND EXCHANGE COMMISSION

                                WASHINGTON, D.C.

                                    EXHIBITS

                                       TO

                                    FORM S-8

                                      UNDER

                             SECURITIES ACT OF 1933

                            SILICON LABORATORIES INC.
EXHIBIT INDEX
Exhibit Number     Exhibit
--------------     -------
5            Opinion and consent of Brobeck, Phleger & Harrison LLP.
     23.1          Consent of Ernst & Young LLP, Independent Auditors.
     23.2          Consent of Brobeck, Phleger & Harrison LLP is contained in
                   Exhibit 5.
     24            Power of Attorney.  Reference is made to pages II-2 and II-3
                   of this Registration Statement.
     99.1          Silicon Laboratories Inc. 2000 Stock Incentive Plan.