SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


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


                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                                (Amendment No. 1)


                                ACTEL CORPORATION
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                         COMMON STOCK, $0.001 PAR VALUE
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   004934 10 5
- --------------------------------------------------------------------------------
                                 (CUSIP Number)


                         Texas Instruments Incorporated
                         13500 North Central Expressway
                               Dallas, Texas 75265
                          Attention: Richard J. Agnich
                                 (214) 995-4855
- --------------------------------------------------------------------------------
                  (Name, address and telephone number of person
                authorized to receive notices and communications)


                                  April 2, 1997
- --------------------------------------------------------------------------------
             (Date of event which requires filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].




<PAGE>

- --------------------------                   ----------------------------------
CUSIP No. 004934 10 5              13D               Page 2 of 8 Pages
- --------------------------                   ----------------------------------


================================================================================
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Texas Instruments Incorporated
- --------------------------------------------------------------------------------
2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                 (a) [ ]
        N/A                                                      (b) [ ]
- --------------------------------------------------------------------------------
3       SEC USE ONLY

- --------------------------------------------------------------------------------
4       SOURCE OF FUNDS

        OO
- --------------------------------------------------------------------------------
5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
        REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
                                                                    [ ]
- --------------------------------------------------------------------------------
6       CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware
- --------------------------------------------------------------------------------
                                 7       SOLE VOTING POWER
           NUMBER OF
            SHARES                       2,431,578
         BENEFICIALLY           ------------------------------------------------
           OWNED BY              8       SHARED VOTING POWER                    
             EACH                                                               
           REPORTING                     0                                      
            PERSON              ------------------------------------------------
             WITH                9       SOLE DISPOSITIVE POWER                 
                                                                                
                                         2,431,578                              
                                ------------------------------------------------
                                 10      SHARED DISPOSITIVE POWER               
                                                                                
                                         0                                      
- --------------------------------------------------------------------------------
11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        2,431,578
- --------------------------------------------------------------------------------
12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
        EXCLUDES CERTAIN SHARES
                                                                      [ ]
- --------------------------------------------------------------------------------
13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

        11.8%
- --------------------------------------------------------------------------------
14      TYPE OF REPORTING PERSON
        CO
================================================================================


<PAGE>

- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5              13D               Page 3 of 8 Pages
- ---------------------------                   ----------------------------------


ITEM 1. SECURITY AND ISSUER.

      Common Stock, $0.001 par value (the "Issuer Common Stock")
      Actel Corporation (the "Issuer")
      955 East Arques Avenue
      Sunnyvale, CA  94086

ITEM 2. IDENTITY AND BACKGROUND.

Filing Person

      Name:  Texas Instruments Incorporated ("TI")
      State of Incorporation:  Delaware
      Principal Business:  Semiconductors and other electronics technologies
      Address of Principal Business: 13500 North Central Expressway
                                    P.O. Box 655474
                                    Dallas, TX  75265

      Address of Principal Office: 13500 North Central Expressway
                                    P.O. Box 655474
                                    Dallas, TX  75265

            TI has not been convicted in a criminal proceeding during the last 5
      years.

            TI has not been a party to any civil proceeding as a result of which
      it was subject to a judgment, decree or final order enjoining future
      violations of, or prohibiting or mandating activities subject to, federal
      or state securities laws or finding any violations with respect to such
      laws.


Executive Officers and Directors
- --------------------------------

   (a)  Name and Title:
        ---------------
        1.  James R. Adams -  Chairman of the Board
        2.  Thomas J. Engibous - Director, President and Chief Executive Officer
        3.  David L. Boren - Director
        4.  James B. Busey IV - Director
        5.  Gerald W. Fronterhouse - Director
        6.  David R. Goode - Director
        7.  Gloria M. Shatto - Director
        8.  William P. Weber - Vice Chairman
        9.  Clayton K. Yeutter - Director
        10. Gary D. Clubb - Executive Vice President
        11. David D. Martin - Executive Vice President
        12. Richard K. Templeton - Executive Vice President
        13. David W. Welp - Executive Vice President


<PAGE>

- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5              13D               Page 4 of 8 Pages
- ---------------------------                   ----------------------------------


            14.   Richard J. Agnich - Senior Vice President, Secretary
                                        and General Counsel
            15.   William A. Aylesworth - Senior Vice President, Treasurer
                                            and Chief Financial Officer
            16.   Charles F. Nielson - Vice President
            17.   Elwin L. Skiles, Jr. - Vice President


      (b)   Residence or Business Address:
            ------------------------------
            1.    13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            2.    13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            3.    660 Parrington Oval
                  Evans Hall, Room 110
                  Norman, OK  73019
            4.    8755 Copeland Pond Ct.
                  Fairfax, VA  22031
            5.    25 Highland Park Village
                  Suite 100-352
                  Dallas, TX  75205
            6.    Three Commercial Place
                  Norfolk, VA  23510-2191
            7.    610 Mount Berry Station
                  Mount Berry, GA  30149-0610
            8.    13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            9.    Columbia Square
                  555 Thirteenth Street, N.W.
                  Washington, D.C.  20004-1109
            10.   13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            11.   13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            12.   13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265
            13.   13500 North Central Expressway
                  P.O. Box 655474
                  Dallas, TX  75265


<PAGE>

- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5              13D               Page 5 of 8 Pages
- ---------------------------                   ----------------------------------


         14.   13500 North Central Expressway
               P.O. Box 655474
               Dallas, TX  75265
         15.   13500 North Central Expressway
               P.O. Box 655474
               Dallas, TX  75265
         16.   13500 North Central Expressway
               P.O. Box 655474
               Dallas, TX  75265
         17.   13500 North Central Expressway
               P.O. Box 655474
               Dallas, TX  75265


   (c)   Present Principal Occupation:
         -----------------------------
         1.    James R. Adams - Chairman of the Board of TI
         2.    Thomas J. Engibous - President and Chief Executive Officer of TI
         3.    David L. Boren - President, The University of Oklahoma
         4.    James B. Busey IV - Retired Admiral, U.S. Navy
         5.    Gerald W. Fronterhouse - Investments
         6.    David R. Goode - Chairman, President and Chief Executive Officer,
                                 Norfolk Southern Corporation
         7.    Gloria M. Shatto - President, Berry College
         8.    William P. Weber - Vice Chairman of TI
         9.    Clayton K. Yeutter - Of Counsel, Hogan & Hartson
         10.   Gary D. Clubb - Executive Vice President of TI
         11.   David D. Martin - Executive Vice President of TI
         12.   Richard K. Templeton - Executive Vice President of TI
         13.   David W. Welp - Executive Vice President of TI
         14.   Richard J. Agnich - Senior Vice President, Secretary
                                   and General Counsel of TI
         15.   William A. Aylesworth - Senior Vice President, Treasurer
                                       and Chief Financial Officer of TI
         16.   Charles F. Nielson - Vice President of TI
         17.   Elwin L. Skiles, Jr. - Vice President of TI


   (d)   Convictions in Criminal Proceedings during the last 5 Years:
         ------------------------------------------------------------
               None of the persons listed in paragraph (a) above have been
         convicted in a criminal proceeding (excluding traffic violations or
         similar misdemeanors) during the last 5 years.


   (e)   Proceedings involving Federal or State Securities Laws:
         -------------------------------------------------------
               None of the persons listed in paragraph (a) above have been
         parties to any civil proceeding as a result of which such person was
         subject to a judgment


<PAGE>
- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5             13D               Page 6 of 8 Pages
- ---------------------------                   ----------------------------------


            enjoining future violations of, or prohibiting or mandating
            activities subject to federal or state securities laws or finding
            any violations with respect to such laws.

      (f)   Citizenship:

                  Each of persons listed in paragraph (a) above is a United
States citizen.


ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

            In connection with TI's sale of its anti-fuse field programmable
      gate array business to the Issuer on March 31, 1995, TI acquired 1,000,000
      shares of the Series A Preferred Stock of the Issuer (the "Convertible
      Preferred Stock") as partial consideration for such sale. The Convertible
      Preferred Stock was converted on March 12, 1997, at the option of TI, into
      2,631,578 shares of Issuer Common Stock.


ITEM 4. PURPOSE OF TRANSACTION.

            As described in Item 3, the Convertible Preferred Stock was acquired
      by TI in connection with, and as partial consideration for, the sale of
      its anti-fuse field programmable gate array business to the Issuer. On
      March 12, 1997, TI exercised its right to convert the Convertible
      Preferred Stock. TI currently plans to effect sales of shares of Issuer
      Common Stock received in the conversion (the "Conversion Stock") from time
      to time in transactions complying with Rule 144 of the Securities Act of
      1933. On April 2, 1997, TI effected a sale of 200,000 shares of Conversion
      Stock.

            TI has no plans or proposals which relate to or would result in (i)
      the acquisition of additional securities of the Issuer, (ii) an
      extraordinary corporate transaction, such as a merger, reorganization or
      liquidation, involving the Issuer or any of its subsidiaries, (iii) a sale
      or transfer of a material amount of assets of the Issuer or any of its
      subsidiaries, (iv) any change in the present board of directors or
      management of the Issuer, including any plans or proposals to change the
      number or term of directors or to fill any existing vacancies on the
      board, (v) any material change in the present capitalization or dividend
      policy of the Issuer, (vi) any other material change in the Issuer's
      business or corporate structure, (vii) changes in the Issuer's charter or
      bylaws or actions which may impede the acquisition of control of the
      Issuer by any person, (viii) causing a class of securities of the Issuer
      to be delisted from a national securities exchange or to cease to be
      authorized to be quoted in an inter-dealer quotation system of a
      registered national securities association, (ix) a class of equity
      securities of the Issuer becoming eligible for termination of registration
      pursuant to Section 12(g)(4) of the Securities Exchange Act of 1934, or
      (x) any actions similar to any of those enumerated above.


<PAGE>
- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5             13D               Page 7 of 8 Pages
- ---------------------------                   ----------------------------------



ITEM 5. INTEREST IN SECURITIES OF ISSUER.

      (a)   TI beneficially owns 2,431,578 shares of the Issuer Common Stock
            (representing 11.8% of the outstanding shares of such class of
            securities). To the knowledge of TI, none of the directors or
            officers of TI listed in Item 2 above beneficially own any shares of
            the Issuer Common Stock.

      (b)   TI has the sole power to vote or to direct the vote and the sole
            power to dispose or to direct the disposition of 2,431,578 shares of
            Issuer Common Stock.

      (c)   N/A

      (d)   N/A

      (e)   N/A

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        THE SECURITIES OF THE ISSUER.

            In connection with its acquisition of the Convertible Preferred
      Stock, TI entered into an Investor Agreement dated April 1, 1995 with the
      Issuer. Such Investor Agreement provides certain registration rights to TI
      with respect to the Conversion Stock. The Investor Agreement also contains
      provisions limiting TI's ability to transfer the Conversion Stock to
      certain identified persons.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

      1.    Investor Agreement, dated March 31, 1995, between Actel Corporation
            and Texas Instruments Incorporated


<PAGE>
- ---------------------------                   ----------------------------------
CUSIP No. 004934 10 5             13D               Page 8 of 8 Pages
- ---------------------------                   ----------------------------------


                                   SIGNATURE

            After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete and
correct.



                                          TEXAS INSTRUMENTS INCORPORATED


    April 7, 1997                           By:  /s/ William A. Aylesworth
    -------------                                ----------------------------
        Date                              Name:  William A. Aylesworth
                                         Title:  Senior Vice President



<PAGE>
                                 EXHIBIT INDEX
                                 -------------

Exhibit     Description
- -------     -----------

   1        Investor Agreement, dated March 31, 1995, between Actel Corporation
            and Texas Instruments Incorporated






                                                                       EXHIBIT 1



                              INVESTOR AGREEMENT


      THIS INVESTOR AGREEMENT (the "Agreement") is made as of the 1st day of
April, 1995 between Actel Corporation, a California corporation (the "Company")
and Texas Instruments Incorporated, a Delaware corporation ("Purchaser").


                                   RECITALS

      A. Pursuant to that certain Asset Purchase Agreement, dated as of the 12th
day of February, 1995 (the "Purchase Agreement"), between the Company and
Purchaser, the Company acquired certain assets and rights from Purchaser in
exchange for cash and shares of the Company's Series A Preferred Stock (the
"Stock") and the assumption of certain liabilities as set forth in the Purchase
Agreement.

      B. The Company desires to grant Purchaser certain rights with respect to
the registration of the Stock under the Securities Act (as defined below) and
Purchaser agrees to be bound by certain limitations as a result of holding such
Stock.

      NOW THEREFORE, the parties hereto agree as follows:


                                   SECTION 1

                                  DEFINITIONS

      As used in this Agreement, the following terms shall have the following
respective meanings:

      "Commission" shall mean the Securities and Exchange Commission or any
other federal agency at the time administering the Securities Act.

      "Common Stock" shall mean the Company's
 Common Stock, par value of $0.001
per share.

      "Controlled Corporation" shall mean a corporation of which Purchaser owns
not less than 80% of the voting power entitled to be cast in the election of
directors.



                                     1

<PAGE>
      "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended,
or any similar federal statute and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.

      "Person" shall mean any person, individual, corporation, partnership,
trust or other nongovernmental entity or any governmental agency, court,
authority or other body (whether foreign, federal, state, local or otherwise).

      "Registrable Securities" shall mean (i) the Common Stock issuable or
issued upon conversion of the Stock; and (ii) any Common Stock or other
securities of the Company issued or issuable in respect of the Stock, including
Common Stock or other securities of the Company issued or issuable upon any
stock split, stock dividend, recapitalization, merger, consolidation or similar
event.

      The terms "register," "registered" and "registration" refer to a
registration effected by preparing and filing a registration statement with the
Commission in compliance with the Securities Act, and the declaration or
ordering of the effectiveness of such registration statement.

      "Registration Expenses" shall mean all expenses, except Selling Expenses
as stated below, incurred by the Company in complying with Sections 2.1 and 2.2
hereof, including, without limitation, all registration, qualification and
filing fees, printing expenses, escrow fees, fees and disbursements of counsel
for the Company, blue sky fees and expenses, the expense of any special audits
incident to or required by any such registration (but excluding the compensation
of regular employees of the Company which shall be paid in any event by the
Company).

      "Restricted Securities" shall mean (i) the Stock; (ii) the Common Stock
issuable or issued upon conversion of the Stock; and (iii) any Common Stock or
other securities of the Company issued or issuable in respect of the Stock,
including Common Stock or other securities of the Company issued or issuable
upon any stock split, stock dividend, recapitalization, merger, consolidation or
similar event.

      "Securities Act" shall mean the Securities Act of 1933, as amended, or any
similar federal statute and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.

      "Selling Expenses" shall mean all underwriting discounts, selling
commissions, stock transfer taxes applicable to the securities registered by
Purchaser, all reasonable fees and disbursements of counsel for Purchaser, and
all expenses associated with any "road shows" incurred at the request or with
the approval of Purchaser.


                                     2

<PAGE>
      "Total Voting Power of the Company" shall mean the total number of votes
which may be cast in the election of directors of the Company at any meeting of
shareholders of the Company if all securities entitled to vote in the election
of directors of the Company were present and voted at such meeting (other than
votes that may be cast only upon the happening of a contingency).

      "Voting Stock" shall mean the Common Stock, preferred stock and any other
securities issued by the Company having the ordinary power to vote in the
election of directors of the Company (other than securities having such power
only upon the happening of a contingency) and any securities convertible at the
election of the holder into any of the foregoing securities.


                                   SECTION 2

                                 REGISTRATION

      2.1   Company Registration.

            (a) Notice of Registration. If at any time or from time to time the
Company shall determine to register any of its Common Stock, either for its own
account or the account of a security holder or holders, other than (i) a
registration relating solely to employee benefit plans or (ii) a registration
relating solely to a Rule 145 transaction, and Purchaser holds Registrable
Securities at such time, the Company will:

                   (i)  promptly give to Purchaser written notice thereof; and

                  (ii) include in such registration (and any related
qualification under blue sky laws or other compliance), and in any underwriting
involved therein all Registrable Securities specified in a written request made
within 20 days after receipt of such written notice from the Company by
Purchaser.

            (b) Underwriting. If the registration of which the Company gives
notice is for a registered public offering involving an underwriting, the
Company shall so advise Purchaser as a part of the written notice given pursuant
to Section 2.1(a)(i). In such event the right of Purchaser to registration
pursuant to this Section 2.1 shall be conditioned upon Purchaser's participation
in such underwriting and the inclusion of Registrable Securities in the
underwriting to the extent provided herein. If Purchaser proposes to distribute
its securities through such underwriting, it shall (together with the Company
and the other holders distributing their securities through such underwriting)
enter into an underwriting agreement in customary form with the managing
underwriter selected for such underwriting by the Company. Notwithstanding any
other provision of this Section 2.1, if the managing


                                     3

<PAGE>
underwriter determines that marketing factors require a limitation of the number
of shares to be underwritten, the managing underwriter may limit the number of
securities to be included in such registration and underwriting, subject to the
limitations set forth below. In such event, the Company shall advise Purchaser
of the number of shares of Registrable Securities that may be included in the
registration and underwriting, which shall not be less than the product of (1)
the number of previously-issued securities to be included in such registration
and (2) Purchaser's percentage ownership of the previously-issued securities
that selling security holders have requested be included in such registration.
If Purchaser disapproves of the terms of any such underwriting, it may elect to
withdraw therefrom by written notice to the Company and the managing
underwriter.

            (c) Right to Terminate Registration. The Company shall have the
right to terminate or withdraw any registration initiated by it under this
Section 2.1 prior to the effectiveness of such registration whether or not
Purchaser has elected to include Registrable Securities in such registration.

      2.2   Registration Requests.

            (a) Request for Registration. Subject to this Section 2.2 and
beginning one hundred twenty (120) days after the closing of the Purchase
Agreement, in the event that the Company receives from Purchaser a written
request (a "Demand Request") that the Company file a registration statement for
a public offering of shares of the Registrable Securities for which the
reasonable anticipated aggregate price to the public would exceed $5,000,000,
the Company shall use reasonable efforts to cause, as soon as practicable, all
Registrable Securities to be registered as may be so requested for the offering;
provided, however, that the Company shall not be required: (i) to register more
than fifty percent (50%) of all Registrable Securities prior to one (1) year
after the closing of the Purchase Agreement, and (ii) to effect more than two
(2) registrations pursuant to this Section 2.2 in any 12-month period. In
connection with any such registration, the Company and its representatives
shall, to the extent reasonably requested by the managing underwriter for the
offering or the Purchaser, participate in customary efforts to sell the
securities under the offering, including without limitation, participating in
"road shows"; provided, however, that the Company and its representatives shall
not be obligated to participate in more than one such "road show" in any
12-month period.

            (b) Underwriting. The Company shall enter into an underwriting
agreement in customary form with the underwriters for such underwriting. The
managing underwriter or underwriters for any such offering will be selected by
Purchaser, subject to the reasonable approval of the Company (which approval
shall be deemed to be given in the case of any investment banking firm of
nationally recognized standing so selected by Purchaser).



                                     4

<PAGE>
            (c) Other Limitations. Notwithstanding the foregoing, the Company
shall not be obligated to take any action pursuant to this Section 2.2 in any
particular jurisdiction in which the Company would be required to execute a
general consent to service of process in effecting such registration,
qualification or compliance unless the Company is already subject to service in
such jurisdiction and except as may be required by the Securities Act.

            (d) Deferral of Filing. The Company may defer the filing (but not
the preparation) of a registration statement required by Section 2.2 until a
date not later than 120 days after the Company's receipt of a Demand Request
(or, if longer, 90 days after the effective date of the registration statement
contemplated by clause (ii) below) if (i) at the time the Company receives the
Demand Request, the Company is engaged in confidential negotiations or other
confidential business activities, disclosure of which would be required in such
registration statement (but would not be required if such registration statement
were not filed), and the Board of Directors of the Company determines in good
faith that such disclosure would be materially detrimental to the Company and
its shareholders or would have a material adverse effect on any such
confidential negotiations or other confidential business activities, or (ii)
prior to receiving the Demand Request, the Board of Directors had determined to
effect a registered underwritten public offering of the Company's securities for
the Company's account and the Company had taken substantial steps (including,
but not limited to, selecting a managing underwriter for such offering) and is
proceeding with reasonable diligence to effect such offering. A deferral of the
filing of a registration statement pursuant to this Section 2.2(d) shall be
lifted, and the requested registration statement shall be filed forthwith, if,
in the case of a deferral pursuant to clause (i) of the preceding sentence, the
negotiations or other activities are disclosed or terminated, or, in the case of
a deferral pursuant to clause (ii) of the preceding sentence, the proposed
registration for the Company's account is abandoned. In order to defer the
filing of a registration statement pursuant to this Section 2.2(d), the Company
shall promptly (but in any event within 10 business days), upon determining to
seek such deferral, deliver to Purchaser a certificate signed by an executive
officer of the Company stating that the Company is deferring such filing
pursuant to this Section 2.2(d) and a general statement of the reason for such
deferral and an approximation of the anticipated delay. Within 20 days after
receiving such certificate, Purchaser may withdraw such request by giving notice
to the Company; if withdrawn, the Demand Request shall be deemed not to have
been made for all purposes of this Agreement. In the event of a deferral
effected pursuant to clause (ii) of the first sentence of this Section 2.2(d),
if shares of Common Stock of other Company shareholders are to be included for
sale in such registered underwritten public offering, Purchaser will be offered
the opportunity to include in such offering the shares of Registrable Securities
that were requested to be included in the Demand Request, subject to (i)
reduction or exclusion on a pro rata basis with other Company shareholders to
the extent the managing underwriter or underwriters advise the Company that
inclusion of such Registrable Securities may have a material adverse effect on
the offering and


                                     5

<PAGE>
(ii) the execution and delivery by Purchaser of all underwriting and related
agreements and documents that are to be executed by selling security holders in
such offering.

      2.3 Expenses of Registration. All Registration Expenses incurred in
connection with all registrations pursuant to Section 2.1 or 2.2 shall be borne
by the Company. All Selling Expenses incurred in connection with all
registrations pursuant to Section 2.1 or 2.2 shall be borne by Purchaser.

      2.4 Registration Procedures. In the case of each registration,
qualification or compliance effected by the Company pursuant to this Section 2,
the Company will keep Purchaser advised in writing as to the initiation of each
registration, qualification and compliance and as to the completion thereof. The
Company will promptly:

            (a) Prepare and file with the Commission a registration statement
with respect to such securities and use reasonable efforts to cause such
registration statement to become and remain effective for at least 180 days or
until the distribution described in the Registration Statement has been
completed;

            (b) Furnish to Purchaser and to the underwriters of the securities
being registered such reasonable number of copies of the registration statement,
preliminary prospectus, final prospectus and such other documents as Purchaser
or such underwriters may reasonably request in order to facilitate the public
offering of such securities;

            (c) Prepare and file with the Commission such amendments and
supplements to such registration statement and the prospectus used in connection
with such registration statements as may be necessary to comply with the
provisions of the Securities Act with respect to the disposition of all
securities covered by such registration statement;

            (d) Use reasonable efforts to register and qualify the securities
covered by such registration statement under such other securities or blue sky
laws of such jurisdictions as shall be reasonably requested by Purchaser,
provided that the Company shall not be required in connection therewith or as a
condition thereto to qualify to do business or to file a general consent to
service of process in any such states or jurisdictions;

            (e) Cause all such Registrable Securities registered to be listed on
each securities exchange or system on which similar securities issued by the
Company are then listed; and

            (f) In the event of any underwritten public offering, enter into and
perform its obligations under an underwriting agreement, in usual and customary
form, with the underwriters of such offering.


                                     6

<PAGE>
      2.5   Indemnification.

            (a) The Company will indemnify Purchaser, each of its officers and
directors and partners, and each person controlling Purchaser within the meaning
of Section 15 of the Securities Act, with respect to which registration,
qualification or compliance has been effected pursuant to this Section 2, and
each underwriter, if any, and each person who controls any underwriter within
the meaning of Section 15 of the Securities Act, against all expenses, claims,
losses, damages or liabilities (or actions in respect thereof), including any of
the foregoing incurred in settlement of any litigation, commenced or threatened,
arising out of or based on any untrue statement (or alleged untrue statement) of
a material fact contained in any registration statement, prospectus, offering
circular or other document, or any amendment or supplement thereto, incident to
any such registration, qualification or compliance, or based on any omission (or
alleged omission) to state therein a material fact required to be stated therein
or necessary to make the statements therein, in light of circumstances in which
they were made, not misleading, or any violation by the Company of the
Securities Act or any rule or regulation promulgated under the Securities Act
applicable to the Company in connection with any such registration,
qualification or compliance, and the Company will reimburse Purchaser, each of
its officers and directors, and each person controlling Purchaser, each such
underwriter and each person who controls any such underwriter, for any legal and
any other expenses reasonably incurred (as they are incurred) in connection with
investigating, preparing or defending any such claim, loss, damage, liability or
action, provided that the Company will not be liable in any such case to the
extent that any such claim, loss, damage, liability or expense arises out of or
is based on any untrue statement or omission or alleged untrue statement or
omission, made in reliance upon and in conformity with written information
furnished to the Company by an instrument duly executed by Purchaser,
controlling person or underwriter and stated to be specifically for use therein.

            (b) Purchaser will indemnify the Company, each of its directors and
officers, each underwriter, if any, of the Company's securities covered by such
a registration statement, each person who controls the Company or such
underwriter within the meaning of Section 15 of the Securities Act, against all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of a
material fact contained in any such registration statement, prospectus, offering
circular or other document, or any omission (or alleged omission) to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, and will reimburse the Company, such
directors, officers, partners, persons, underwriters or control persons for any
legal or any other expenses reasonably incurred in connection with investigating
or defending any such claim, loss, damage, liability or action, in each case to
the extent, but only to the extent (i) that such untrue statement (or alleged
untrue statement) or omission (or alleged omission) is made in such registration
statement, prospectus, offering circular or other document in reliance upon and
in conformity with written information furnished to the


                                     7

<PAGE>
Company by an instrument duly executed by Purchaser and stated to be
specifically for use therein, and (ii) of Purchaser's net proceeds from the sale
of Registrable Securities pursuant to such registration.

            (c) Each party entitled to indemnification under this Section 2.5
(the "Indemnified Party") shall give notice to the party required to provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the Indemnifying Party to assume the defense of any such claim or any
litigation resulting therefrom, provided that counsel for the Indemnifying
Party, who shall conduct the defense of such claim or litigation, shall be
approved by the Indemnified Party (whose approval shall not unreasonably be
withheld), and the Indemnified Party may participate in such defense at such
party's expense, and provided further that the failure of any Indemnified Party
to give notice as provided herein shall not relieve the Indemnifying Party of
its obligations under this Section 2.5 unless the failure to give such notice is
materially prejudicial to an Indemnifying Party's ability to defend such action
and provided further that the Indemnifying Party shall not assume the defense
for matters as to which there is a conflict of interest or separate and
different defenses but shall pay, in any such instance, all reasonable legal
fees and expenses incurred by one firm of attorneys for the Indemnified Party.
No Indemnifying Party, in the defense of any such claim or litigation, shall,
except with the consent of each Indemnified Party, consent to entry of any
judgment or enter into any settlement which does not include as an unconditional
term thereof the giving by the claimant or plaintiff to such Indemnified Party
of a release from all liability in respect to such claim or litigation. No
Indemnifying Party shall be liable for indemnification hereunder with respect to
any settlement or consent to judgment, in connection with any claim or
litigation to which these indemnification provisions apply, that has been
entered into without the prior consent of the Indemnifying Party (which consent
will not be unreasonably withheld).

            (d) The rights to indemnification hereunder shall be in addition to
any rights of indemnification set forth in any underwriting agreement entered
into as contemplated hereby.

      2.6 Information by Purchaser. If Purchaser includes Registrable Securities
in any registration, it shall furnish to the Company such information regarding
Purchaser, the Registrable Securities held by it and the distribution proposed
by Purchaser, as the Company may request in writing and as shall be required in
connection with any registration, qualification or compliance referred to in
this Section 2.

      2.7   Rule 144 Reporting. With a view to making available the benefits of
certain rules and regulations of the Commission which may at any time permit the
sale of the

                                     8

<PAGE>
Restricted Securities to the public without registration, the Company agrees to
use reasonable efforts to:

            (a) Make and keep public information available, as those terms are
understood and defined in Rule 144 under the Securities Act, at all times after
the effective date that the Company is subject to the reporting requirements of
the Securities Act or the Exchange Act.

            (b) File with the Commission in a timely manner all reports and
other documents required of the Company under the Securities Act and the
Exchange Act (at any time after it has become subject to such reporting
requirements).

            (c) So long as Purchaser owns any Restricted Securities, to furnish
to Purchaser forthwith upon request a written statement by the Company as to its
compliance with the reporting requirements of said Rule 144, the Securities Act
and the Exchange Act and a copy of the most recent annual or quarterly report of
the Company and such other reports and documents of the Company and other
information in the possession of or reasonably obtainable by the Company as
Purchaser may reasonably request in availing itself of any rule or regulation of
the Commission allowing Purchaser to sell any such securities without
registration.

      2.8 Transfer of Registration Rights. The rights to cause the Company to
register securities granted Purchaser under Sections 2.1 and 2.2 may be
transferred or assigned by Purchaser only to a transferee or assignee of not
less than 250,000 shares of Registrable Securities or Stock convertible into
250,000 shares of Registrable Securities at the time of transfer or assignment
(and not in the aggregate) ("Transferee") subject to (i) subsequent adjustments
for stock splits, stock dividends, reverse stock splits and the like and to (ii)
such Transferee taking such stock subject to the restrictions contained herein
and the restrictions contained in Section 5.11 of the Purchase Agreement,
including, but not limited to, a legend on the transferred or assigned stock
certificate indicating that the shares of stock are Restricted Securities. As a
condition to the assignment of rights under this Section 2.8 to any Transferee,
Purchaser shall be obligated to (i) secure the agreement of such Transferee to
be bound by the terms of this Agreement, including the Standoff Agreement in
Section 2.9 hereof and the other obligations and restrictions imposed on
Purchaser hereunder, and (ii) effect such arrangements as are necessary to
ensure the collective exercise of the rights granted in Section 2 hereof.

      2.9 Standoff Agreement. Purchaser agrees that, in connection with any
public offering of the Company's securities pursuant to Section 2.2 hereof or
Section 2.1 hereof, whether or not Purchaser elects to participate, Purchaser
will not sell, make any short sale of, loan, grant any option for the purchase
of, or otherwise dispose of any Registrable Securities (other than those
included in the registration) without the prior written consent of the Company


                                     9

<PAGE>
or the managing underwriters for such public offering, as the case may be, for
such period of time (not to exceed 120 days) from the effective date of such
registration as may be requested by the underwriters.

      2.10 Limitation on Registration of Securities. From and after the date of
this Agreement, the Company shall not enter into an agreement with a holder of
any securities of the Company that gives such holder registration rights if such
registration rights are superior in substance to, or are otherwise inconsistent
with, the registration rights granted to Purchaser hereunder without the prior
written consent of Purchaser.

      2.11 Suspension of Registration Rights. The registration rights granted
pursuant to this Section 2 cannot be exercised at any time that a public market
for the Company's Common Stock exists, and all Registrable Securities held by
Purchaser may, in the opinion of counsel to the Company, be sold freely pursuant
to Rule 144(k).


                                   SECTION 3

                             STANDSTILL AGREEMENT

      3.1 Limitation on Ownership. From and after the date hereof and for a
period lasting two (2) years, Purchaser shall not (and shall not permit any
subsidiary to directly or indirectly) acquire (and shall not act in concert with
any third party to acquire) any Voting Stock, any securities convertible into or
exchangeable for Voting Stock, or any other right to acquire Voting Stock
(except, in any case, by way of stock dividends or other distributions or
offerings made available to holders of any Voting Stock generally) or authorize
or make a tender, exchange or other offer, without the written consent of the
Company, if the effect of such acquisition would be to increase Purchaser's
beneficial ownership of all Voting Stock then owned by Purchaser to more than
thirteen and one-half percent (13.5%) of the Total Voting Power of the Company.

      3.2 Effect of Sales by Purchaser. If Purchaser sells any Voting Stock, the
percentage ownership in the Total Voting Power of the Company which Purchaser is
entitled to own as provided in this Section 3.1 shall be reduced by the
percentage amount of such sale.

      3.3 Adjustments to Outstanding Shares. Purchaser will not be deemed to
have violated Section 3.1 if the aggregate percentage ownership of Purchaser is
increased solely as a result of a recapitalization of the Company or a
repurchase of securities by the Company or any other action taken by the Company
or its affiliates.



                                     10

<PAGE>
      3.4 Voting. Purchaser, if at any time holds shares of Voting Stock, shall
make a good faith effort to be present, in person or by proxy, at all meetings
of shareholders of the Company so that all shares of Voting Stock beneficially
owned by Purchaser may be counted for the purpose of determining the presence of
a quorum at such meetings.

      3.5 Tender Offer. Section 3.1 notwithstanding, Purchaser may acquire
additional shares of Voting Stock or any securities convertible into or
exercisable or exchangeable for Voting Stock if a tender or exchange offer is
made (as evidenced by the filing with the Commission of a Schedule 14D-1 or any
successor schedule or form promulgated or adopted for such purpose by the
Commission) by another person, entity or group to purchase or exchange for cash
or other consideration any shares of Voting Stock or rights, warrants or options
thereof which, if successful, would result in such person, entity or group
beneficially owning or having the right to acquire more than five percent (5%)
of the shares of Voting Stock then outstanding, or it is publicly disclosed that
another person, entity or group subsequent to the date hereof has acquired any
shares of Voting Stock or rights, warrants or options therefor which results in
such person, entity or group beneficially owning or having the right to acquire
more than twenty percent (20%) of the shares of Voting Stock then outstanding.
The Company shall notify Purchaser promptly upon the occurrence of either of the
foregoing events.

      3.6 Exceptions. Section 3.1 shall not apply to acquisitions of Voting
Stock: (i) as part of an equity index transaction, provided that Purchaser shall
not vote such shares, (ii) with the consent of a simple majority of the
authorized members of the Company's Board of Directors, or (iii) as part of a
transaction on behalf of any pension or profit-sharing retirement plan, or any
successor retirement plans thereto (collectively, the "Retirement Plans"),
provided that such securities are independently acquired by the Retirement
Plans.

      3.7 Solicitation of Proxies. Without the Company's prior written consent,
before the second anniversary of the Closing of the Purchase Agreement,
Purchaser shall not solicit proxies with respect to any Voting Stock, nor shall
it become a "participant" in any "election contest" (as such terms are used in
Rule 14a-11 of Regulation 14A under the Exchange Act) relating to the election
of directors of the Company.

      3.8 Acts in Concert with Others. Except as contemplated herein with regard
to the assignment of rights to Controlled Corporations or pledgees or with
regard to permissible sales of Purchaser's Registrable Securities, before the
second anniversary of the Closing of the Purchase Agreement, Purchaser shall not
join a partnership, limited partnership, syndicate or other group, or otherwise
act in concert with any third person, for the purpose of acquiring, holding, or
disposing of Voting Stock.



                                     11

<PAGE>
      3.9 Restrictions on Transfer of Stock. Neither Purchaser nor any entity
affiliated with Purchaser shall sell or transfer Restricted Securities in any
transaction which results, or in any series of transactions which are intended
to result, in any Person listed on Schedule A as attached hereto ("Scheduled
Persons"), or any Person controlled by, under common control with, or otherwise
affiliated with such Scheduled Persons owning or having the right to acquire
beneficial ownership of Restricted Securities; provided, the restrictions in
this Section 3.9 shall not apply to the sale of Restricted Securities by
Purchaser (i) pursuant to a bona fide underwritten public offering registered
under the Securities Act, (ii) pursuant to Rule 144 under the Securities Act in
a broker's transaction as provided in Rule 144(f), except where Purchaser's
intent is to transfer Restricted Securities to a Scheduled Person, or (iii) in
response to a general offer to purchase or exchange for cash or other
consideration any or all outstanding Voting Stock that is made by another Person
or group.

                                   SECTION 4

                              INFORMATION RIGHTS

      4.1 Annual and Quarterly Reports. As soon as practicable after the end of
each fiscal quarter ending after the closing of the Purchase Agreement, and in
any event within forty-five (45) days thereafter (ninety (90) days in the case
of the end of the fiscal year), the Company shall deliver to Purchaser, so long
as Purchaser holds no less than 250,000 shares of Registrable Securities or
Stock convertible into 250,000 shares of Registrable Securities, a copy of the
Company's report on Form 10-Q or Form 10-K filed with the Commission pursuant to
the requirements of the Exchange Act for such fiscal period.

                                   SECTION 5

                                 EFFECTIVENESS

      5.1   Effective Time.  This Agreement shall become effective upon the 
Closing of the Purchase Agreement.


                                   SECTION 6

                                 MISCELLANEOUS

      6.1 Governing Law. This Agreement shall be governed in all respects by the
internal laws of the State of California as applied to agreements entered into
between California residents and performed entirely within California.



                                     12

<PAGE>
      6.2 Successors and Assigns. Except as otherwise provided herein, the
provisions hereof shall inure to the benefit of, and be binding upon, the
successors, assigns, heirs, executors and administrators of the parties hereto.

      6.3 Entire Agreement; Amendment. This Agreement constitutes the full and
entire understanding and agreement between the parties with regard to the
subject matter contained herein. Neither this Agreement nor any term hereof may
be amended, waived, discharged, or terminated other than by a written instrument
signed by the Company and Purchaser.

      6.4 Notices, etc. All notices and other communications required or
permitted hereunder shall be in writing and shall be mailed by registered or
certified mail, postage prepaid, or otherwise delivered by hand or by messenger,
addressed to the address set forth below for the party to be notified.

      6.5 Delays or Omissions. Except as expressly provided herein, no delay or
omission to exercise any right, power, or remedy accruing to Purchaser or
Company, upon any breach or default of the Company or Purchaser under this
Agreement, respectively, shall impair any such right, power, or remedy of
Purchaser or Company nor shall it be construed to be a waiver of any such breach
or default, or an acquiescence therein, as of or in any similar breach or
default therein occurring, nor shall any waiver of any single breach or default
be deemed a waiver of any other breach or default theretofore or thereafter
occurring. Any waiver, permit, consent or approval of any kind or character on
the part of Purchaser or Company of any breach or default of the other party
under this Agreement, or any waiver on the part of Purchaser or Company of any
provisions or conditions of this Agreement, must be in writing and shall be
effective only to the extent specifically set forth in such writing. All
remedies, either under this Agreement or by law or otherwise afforded to
Purchaser and Company, respectively, shall be cumulative and not alternative.

      6.6 Counterparts. This Agreement may be executed in two counterparts, each
of which shall be enforceable against the party actually executing such
counterpart, and together shall constitute one instrument.

      6.7 Titles and Subtitles. The titles and subtitles used in this Agreement
are used for convenience only and are not considered in construing or
interpreting this Agreement.



                                     13

<PAGE>
      This Investor Agreement is hereby executed as of the date first above
written.


                                        ACTEL CORPORATION

                                      By: /s/ John C. East
                                          --------------------------
                                          John C. East
                                          President and Chief
                                          Executive Officer

                                        Address:
                                                955 East Arques Avenue
                                                Sunnyvale, California 94086



                                        TEXAS INSTRUMENTS INCORPORATED

                                      By: /s/ William A. Aylesworth
                                          --------------------------
                                          William A. Aylesworth
                                          Senior Vice President,
                                          Treasurer and Chief Financial
                                          Officer

                                        Address:
                                                7839 Churchill Way
                                                P.O. Box 650311, M/S 3995
                                                Dallas, Texas 75265




                                     14

<PAGE>
                                  SCHEDULE A

                               Scheduled Persons


     1.  Xilinx, Inc.
     2.  Cypress Semiconductors
     3.  Altera Corporation
     4.  Advanced Micro Devices
     5.  Lattice Semiconductor
     6.  QuickLogic Corporation
     7.  Crosspoint Solutions, Inc.
     8.  AT&T Company



                                     15