SIERRA SEMICONDUCTOR CORP
S-3, 1996-11-05
SEMICONDUCTORS & RELATED DEVICES
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     As filed with the  Securities  and Exchange  Commission on November 5, 1996
                                                            Registration No. 33-


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                       ----------------------------------


                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                       ----------------------------------


                        SIERRA SEMICONDUCTOR CORPORATION
             (Exact name of Registrant as specified in its charter)
             -------------------------------------------------------

            California                                          94-2925073
(State or other jurisdiction of                              (I.R.S. Employer
 incorporation or organization)                           Identification Number)

                                 2222 Qume Drive
                               San Jose, CA 95131
                                 (408) 434-9300
    (Address, including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)
     -----------------------------------------------------------------------

                                 JAMES V. DILLER
                   Chief Executive Officer and Chairman of the
                               Board of Directors
                        Sierra Semiconductor Corporation
                                 2222 Qume Drive
                               San Jose, CA 95131
                                 (408) 434-9300
 (Name, address, including zip code, and telephone number, including area code,
                              of agent for service)

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

                                    Copy to:
                                   NEIL WOLFF
                       Wilson, Sonsini, Goodrich & Rosati
                               650 Page Mill Road
                           Palo Alto, California 94304
                                 (415) 493-9300


     APPROXIMATE  DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC:  From time to
time  after  the  effective  date of this  Registration  Statement.  
     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest reinvestment plans, check the following box.[ ]
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933 (the "Securities  Act"),  other than securities  offered only in connection
with dividend or interest reinvestment plans, please check the following box.[x]
                        -------------------------------
     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering.[ ]
     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering.[ ]

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box.[ ]


                         CALCULATION OF REGISTRATION FEE
================================================================================
Title of Each Class      Amount         Proposed         Proposed    Amount of
 of Securities to         to be          Maximum         Maximum    Registration
   be Registered       Registered       Offering        Aggregate       Fee
                                          Price          Offering
                                      Per Share(1)        Price
================================================================================
                    
  Common Stock       804,407 shares     $12.3125      $9,904,261.19    $3,001.29

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

(1)  Estimated pursuant to Rule 457(c) solely for the purpose of calculating the
     amount of the  registration  fee.  The  average  of the high and low prices
     reported on the Nasdaq Stock Market was $12.3125 on October 30, 1996.
  The  Registrant  hereby amends  this  Registration  Statement on such date  or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
================================================================================
<PAGE>

PROSPECTUS
                                 804,407 SHARES

                        SIERRA SEMICONDUCTOR CORPORATION

                                  COMMON STOCK

         This  Prospectus  relates  to  an  aggregate  of  804,407  shares  (the
"Shares") of Common Stock,  no par value per share ("Common  Stock"),  of Sierra
Semiconductor  Corporation  (the  "Company"),  which may be  resold  by  Bipolar
Integrated  Technology,  Inc.  ("BIT") to the public,  distributed by BIT to the
persons  named  herein  (the  "Selling  Shareholders")  or resold by the Selling
Shareholders  (collectively  the  "Offering").  Pursuant  to an  Asset  Purchase
Agreement  dated  August  16,  1996 among the  Company,  BIT,  PMC-Sierra,  Inc.
(Portland)  and certain  Shareholders  of BIT,  the Shares were issued to BIT on
September 3, 1996 as consideration  for the acquisition of certain assets of BIT
by PMC-Sierra,  Inc. (Portland). Such issuance was pursuant to an exemption from
the  registration  requirements  of the  Securities Act of 1933, as amended (the
"Securities  Act").  The Shares are being registered under the Securities Act in
order to permit the public sale or other distribution of the Shares.

         The Shares may be distributed by BIT to the Selling  Shareholders  from
time to time, and sold or distributed from time to time by or for the account of
BIT or the Selling Shareholders through underwriters or dealers, through brokers
or other  agents,  or  directly  to one or more  purchasers,  at  market  prices
prevailing at the time of sale or at prices  otherwise  negotiated.  The Company
will  receive  no portion of the  proceeds  from the sale of the Shares  offered
hereby  and will bear  certain  expenses  incident  to their  registration.  See
"Selling Shareholders" and "Plan of Distribution."

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

         The Common Stock of the Company is traded on the Nasdaq National Market
("Nasdaq") under the symbol "SERA." On November 1, 1996, the last reported sales
price for the Common Stock as reported by Nasdaq was $13.25 per share.

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

         PROSPECTIVE  INVESTORS SHOULD CAREFULLY  CONSIDER THE MATTERS SET FORTH
UNDER THE CAPTION "RISK FACTORS" LOCATED ON PAGE 3 OF THIS PROSPECTUS.

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

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

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

                  The date of this Prospectus is ________, 1996

<PAGE>


         NO DEALER,  SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION  OR TO MAKE ANY  REPRESENTATIONS  OTHER THAN THOSE  CONTAINED  IN OR
INCORPORATED  BY REFERENCE IN THIS  PROSPECTUS IN CONNECTION WITH THE OFFER MADE
BY THIS PROSPECTUS AND, IF GIVEN OR MADE,  SUCH  INFORMATION OR  REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN  AUTHORIZED  BY THE  COMPANY,  BIT OR THE
SELLING SHAREHOLDERS.  NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES,  CREATE ANY IMPLICATION THAT THERE HAS
NOT BEEN ANY CHANGE IN THE FACTS SET FORTH IN THIS  PROSPECTUS OR IN THE AFFAIRS
OF THE COMPANY SINCE THE DATE HEREOF.  THIS  PROSPECTUS  DOES NOT  CONSTITUTE AN
OFFER OR  SOLICITATION  BY ANYONE IN ANY  JURISDICTION  IN WHICH  SUCH  OFFER OR
SOLICITATION  IS NOT  AUTHORIZED  OR IN WHICH THE  PERSON  MAKING  SUCH OFFER OR
SOLICITATION  IS NOT  QUALIFIED  TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO
MAKE SUCH OFFER OR SOLICITATION.


                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities  Exchange Act of 1934, as amended (the "Exchange Act"), and the rules
and regulations  promulgated  thereunder,  and, in accordance  therewith,  files
reports,  proxy  and  information  statements  and  other  information  with the
Securities and Exchange Commission (the "Commission").  These reports, proxy and
information  statements  and other  information  concerning  the  Company can be
inspected  and  copied at the  public  reference  facilities  maintained  by the
Commission at Room 1024, 450 Fifth Street,  NW,  Washington,  D.C. 20549; and at
the  Commission's  regional  offices  located at Suite  1400,  500 West  Madison
Street,  Chicago,  Illinois 60661 and at Seven World Trade Center, New York, New
York 10048.  Copies of such material can also be obtained from the Commission at
prescribed rates through its Public Reference  Section at 450 Fifth Street,  NW,
Washington,  D.C. 20549.  The SEC also maintains a site on the World Wide Web at
http://www.sec.gov  that contains reports,  proxy and information statements and
other information  regarding  registrants that file electronically with the SEC.
The Common Stock is traded on the Nasdaq National Market.  Information  filed by
the  Company  with  Nasdaq may be  inspected  at the offices of Nasdaq at 1735 K
Street, NW, Washington, D.C. 20006.

         The Company has filed with the Commission a  Registration  Statement on
Form S-3 under the  Securities  Act with  respect to the Shares  offered  hereby
(including  all   amendments  and   supplements   thereto,   the   "Registration
Statement").  This Prospectus, which forms a part of the Registration Statement,
does not contain all of the information set forth in the Registration Statement,
certain  parts of which  have  been  omitted  in  accordance  with the rules and
regulations  of the  Commission.  Statements  contained  herein  concerning  the
provisions  of certain  documents  are not  necessarily  complete  and,  in each
instance,  reference is made to the copy of such document filed as an exhibit to
the  Registration  Statement or otherwise filed with the  Commission.  Each such
statement  is  qualified in its  entirety by such  reference.  The  Registration
Statement  and the exhibits  thereto can be  inspected  and copied at the public
reference  facilities and regional  offices of the Commission and at the offices
of Nasdaq referred to above.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

          The following documents, which have been filed by the Company with the
Commission  pursuant to the Exchange Act, are incorporated by reference and made
a part of this Prospectus:  (i) the Company's Annual Report on Form 10-K for the
fiscal year ended  December 31, 1995;  (ii) all other reports filed  pursuant to
Section 13(a) or 15(d) of the Exchange Act since December 31, 1995, specifically
including the  Company's  Quarterly  Report on Form 10-Q for the quarters  ended
March 31, 1996 and June 30, 1996, the Company's Current Report on Form 8-K dated
August 30,  1996,  and the  Company's  Registration  Statement on Form S-8 dated
October 3, 1996;  (iii) the description of the Company's  Common Stock set forth
in the Company's Registration Statement on Form S-1 (No. 33-39406),  dated April
23, 1991; (iv) all reports, definitive proxy statement and other documents filed
by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d)
of the Exchange Act  subsequent to the date of this  Prospectus and prior to the
termination of the Offering.

         Any statement  contained in a document or information  incorporated  or
deemed to be incorporated  herein by reference shall be deemed to be modified or
superseded  for  purposes  of this  Prospectus  to the extent  that a  statement
contained  herein  or in any  subsequently  filed  document  that also is, or is
deemed to be,  incorporated  herein by reference,  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 Prospectus.

         THE COMPANY  UNDERTAKES  TO PROVIDE,  WITHOUT  CHARGE,  TO EACH PERSON,
INCLUDING ANY BENEFICIAL  OWNER, TO WHOM A COPY OF THIS PROSPECTUS IS DELIVERED,
UPON THE WRITTEN OR ORAL  REQUEST OF SUCH  PERSON,  A COPY OF ANY AND ALL OF THE
DOCUMENTS OR INFORMATION  REFERRED TO ABOVE THAT HAS BEEN OR MAY BE INCORPORATED
BY REFERENCE IN THIS  PROSPECTUS  (EXCLUDING  EXHIBITS TO SUCH DOCUMENTS  UNLESS
SUCH EXHIBITS ARE  SPECIFICALLY  INCORPORATED BY REFERENCE).  REQUESTS SHOULD BE
DIRECTED TO INVESTOR  RELATIONS,  SIERRA  SEMICONDUCTOR  CORPORATION,  2222 QUME
DRIVE,  SAN JOSE,  CALIFORNIA  95131.  THE  COMPANY'S  TELEPHONE  NUMBER AT THAT
LOCATION IS (408) 434-9300.

<PAGE>

                                   THE COMPANY

         The Company was  incorporated  in the State of  California  in November
1983 and commenced business in January 1984. The Company's  principal  executive
office is located at 2222 Qume Drive, San Jose,  California 95131. The Company's
Common  Stock  trades on the  Nasdaq  National  Market  under the  symbol  SERA.
References to the "Company" or "Sierra"  mean Sierra  Semiconductor  Corporation
and its subsidiaries and predecessor entities.

         The Company designs,  develops,  markets and supports  high-performance
semiconductor  system  solutions  for  advanced   communications   markets.  The
Company's products are used in broadband  communications  infrastructures,  high
bandwidth networks and multimedia personal  computers.  The Company is a leading
supplier  of  ATM,  T1/E1,  DS3/E3  and  SONET/SDH  integrated  circuits  in the
communications  infrastructure  and  networking  markets,  and  supplies  highly
integrated  data and voice  communications  semiconductor  products  to personal
computer original  equipment  manufacturers  ("PC OEMs"). On August 28, 1996 the
Company  announced  its decision to exit the  personal  computer  modem  chipset
business and to put the modem  chipset  product  line up for sale.  This action,
which included the  restructuring  of the Company's  non-networking  operations,
resulted in a one-time  charge to earnings in the quarter  ending  September 30,
1996,  of  approximately  $72 million.  The amount of the third  fiscal  quarter
one-time  charge was publicly  announced on October 17, 1996 as part of Sierra's
third quarter earnings release.


                                  Risk Factors

          THE COMPANY'S BUSINESS,  FINANCIAL CONDITION AND RESULTS OF OPERATIONS
ARE SUBJECT TO A NUMBER OF RISKS, SOME OF WHICH ARE DESCRIBED BELOW. THE COMPANY
AND PMC-SIERRA, INC. EACH FACE SIMILAR FACTORS WHICH MAY AFFECT THEIR RESPECTIVE
PERFORMANCE,  AND  ACCORDINGLY  CERTAIN  RISK  FACTORS  BELOW WHICH REFER TO THE
COMPANY  AND ITS  OPERATIONS  SHOULD  ALSO BE VIEWED AS RISK  FACTORS  REFERRING
SEPARATELY TO PMC-SIERRA, INC. AND ITS OPERATIONS.

SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS

          Certain  statements  and information  in  this  Registration Statement
constitute  "forward-looking  statements"  within  the  meaning  of the  federal
securities laws. Such forward-looking statements involve risks and uncertainties
which may cause the actual results,  performance, or achievements of the Company
to be materially different from any future results, performance, or achievements
expressed or implied by such  forward-looking  statements.  The  forward-looking
statements  include  projections  of gross margin,  projections of growth of the
broadband  communications  market,  projections  of the results of the Company's
exit  from the  modem  chip  market,  projections  of the  continued  supply  of
semiconductors  to the  Company by outside  foundries  and by  assembly  houses,
projections  of  the  Company's   export  sales,   and   projections  of  future
expenditures   on  research  and   development   and   marketing,   general  and
administrative  activities.  Actual results could differ from those projected in
any forward-looking statements for the reasons detailed below.

FLUCTUATIONS IN OPERATING RESULTS

          The Company's quarterly and annual operating results may vary due to a
number  of  factors,   including,  among  others,  the  timing  of  new  product
introductions,  decreased demand or average selling prices for products,  market
acceptance  of products,  demand for products of the  Company's  customers,  the
introduction  of  products  or   technologies  by  the  Company's   competitors,
competitive  pressure  on product  pricing,  the  Company's  and its  customers'
inventory  levels of the Company's  products  (particularly  discontinued  modem
products),   product   availability  from  outside   foundries,   variations  in
manufacturing  yields for the company's  products,  expenditures for new product
and  process  development,  the  acquisition  of  wafer  fabrication  and  other
manufacturing   capacity,  and  the  acquisition  of  businesses,   products  or
technologies.  At various  times in the past,  the  Company's  foundry and other
suppliers have  experienced  lower than  anticipated  yields that have adversely
affected production and,  consequently,  the Company's operating results.  There
can be no  assurance  that the  Company's  existing or future  foundry and other
suppliers will not experience irregularities which could have a material adverse
effect on the  Company's  operating  results.  The Company from time to time may
order in advance of anticipated  customer  demand from its suppliers in response
to anticipated  long lead times to obtain  inventory and materials,  which might
result in excess  inventory  levels if expected  orders fail to  materialize  or
other  factors  render the  Company's  product or its  customer's  products less
marketable.  The  Company has limited  ability to forecast  its unit  volumes of
discontinued  modem chipset sales or the prices at which these sales will occur,
particularly in light of recent announcements by competitors of modems operating
at speeds of up to 56 kbps.  The  Company's  visibility  on sales of  networking
chipsets is limited  due to customer  uncertainty  regarding  future  demand for
end-user  networking  products  and  price  competition  in the  market  for ATM
chipsets.  Any delay or  cancellation  of  existing  orders,  or any  decline in
projected  future  orders,  by the  Company's  customers  could  have a material
adverse effect on the Company's  operating results.  Margins will vary depending
on product mix as described  above.  The  Company's  operating  results also are
affected by the state and direction of the electronics  industry and the economy
in the  United  States and other  markets  the  Company  serves.  The  Company's
operating results could also be adversely affected if restructuring reserves are
insufficient  for the costs of liquidating  inventory,  retaining  employees and
discontinuing  operations.  The  occurrence  of any of the  foregoing  or  other
factors could have a material adverse effect on the Company's operating results.
Due to these factors, past results may not be indicative of future results.

TECHNOLOGICAL CHANGE

          The markets for the Company's  products are  characterized by evolving
industry  standards  and rapid  technological  change and product  obsolescence.
Technological  change may be particularly  pronounced in the developing  markets
for  communications  semiconductor  devices  used in  high-speed  networks.  The
Company's future success will be highly dependent upon the timely completion and
introduction of new products at competitive  price and performance  levels.  The
success  of new  products  depends  on a number  of  factors,  including  proper
definition  of such  products,  successful  and  timely  completion  of  product
development and introduction to market, correct judgment with respect to product
demand,  market  acceptance  of  the  Company's  and  its  customers'  products,
fabrication  yields by the  Company's  independent  foundries  and the continued
ability of the Company to offer  innovative new products at competitive  prices.
Many of these  factors are outside the control of the  Company.  There can be no
assurance  that the Company will be able to identify  new product  opportunities
successfully,  develop and bring to market new products,  achieve design wins or
be  able  to  respond  effectively  to  new  technological  changes  or  product
announcements  by others.  A failure in any of these areas would  materially and
adversely affect the Company's operating results.

          The Company's  current  strategy is focused on  high-speed  networking
interface  chips.  Products  for   telecommunications  and  data  communications
applications  are based on industry  standards  that are  continually  evolving.
Future  transitions  in  customer  preferences  could  quickly  obsolete  Sierra
products.  The Company is developing products for the Asynchronous Transfer Mode
("ATM")  telecommunications and networking market, which is in an early stage of
development.  The emergence and adoption of new industry  standards that compete
with ATM or  maintenance  by the  industry of existing  standards in lieu of new
standards could render the Company's ATM products unmarketable or obsolete.  The
market for ATM equipment has not developed as rapidly as industry observers have
predicted,  and alternative networking technologies such as "fast Ethernet" have
developed to meet consumer requirements.  A substantial portion of the Company's
development efforts are focused on ATM and related products.  A material portion
of the Company's revenues and a substantial portion of the Company's profits are
derived from sales of ATM, T1/E1, DS3/E3 and SONET/SDH based products. There can
be no assurance that a significant market for the Company's products will emerge
or, if it does emerge, that the Company will be able to develop and market these
or other  networking  products in a timely and commercially  viable manner.  The
adoption or  maintenance  by the industry of high speed  transmission  standards
other than those which the Company currently addresses,  or the inability of the
Company to develop  and market  its  networking-related  products,  would have a
material adverse effect on the Company's operating results.

          Many  of  the  Company's   products  under   development  are  complex
semiconductor   devices  that  require   extensive  design  and  testing  before
prototypes can be  manufactured.  The  integration of a number of functions in a
single  chip  or  in a  chipset  requires  the  use  of  advanced  semiconductor
manufacturing  techniques.  This can  result in chip  redesigns  if the  initial
design  does  not  permit  acceptable   manufacturing   yields.   The  Company's
telecommunications  products are designed for  customers  who in many  instances
have not yet fully defined their hardware  products.  Design delays or redesigns
by these  customers  could in turn delay  completion or require  redesign of the
semiconductor  devices  needed for the final hardware  product.  In this regard,
many of the relevant  standards and  protocols for products  based on high speed
networking technologies have not been widely adopted or ratified by the relevant
standard-setting  bodies. Redesigns or design delays often are required for both
the hardware  manufacturer's products and the Company's chipsets as industry and
customer  standards,  protocols or design  specifications  are  determined.  Any
resulting  delay  in the  production  of the  Company's  products  could  have a
material adverse effect on the Company's operating results.

          The Company acquired in-process  research and development  relating to
ethernet  switching  technology  from Bit,  Incorporated.  The  Company  will be
required  to expend  significant  resources  completing  products  based on this
technology. The Company cannot assure that these products will be completed in a
timely  manner  or  at  all,  or  that  if  completed  these  products  will  be
commercially adopted.

COMPETITION

          The   semiconductor   industry  is   intensely   competitive   and  is
characterized by rapid technological  change and by price erosion.  The industry
consists of major domestic and international  semiconductor  companies,  many of
which have substantially greater financial and other resources than the Company.
Emerging companies also provide  significant  competition in this segment of the
semiconductor   market.  The  Company  believes  that  its  ability  to  compete
successfully  in this market  depends on a number of factors,  including,  among
others, the price, quality and performance of the Company's and its competitors'
products,  the timing and success of new product  introductions  by the Company,
its  customers  and  its  competitors,  the  emergence  of  new  standards,  the
development   of  technical   innovations,   the  ability  to  obtain   adequate
manufacturing  capacity  and  sources  of  raw  materials,   the  efficiency  of
production,  the rate at which the  Company's  customers  design  the  Company's
products into their products, the number and nature of the Company's competitors
in a  given  market,  the  assertion  of  the  Company's  and  its  competitors'
intellectual property rights and general market and economic conditions.

          The   Company    produces    semiconductor    devices   for   advanced
telecommunications  and networking  applications.  The Company's  competitors in
this  market  include,  among  others,  Texas  Instruments,  Level  One,  Lucent
Technologies,  Dallas Semiconductor and Transwitch. The number of competitors in
this market and the  technology  platforms on which their  products will compete
may change in the future. To date there have been several competing technologies
in the  telecommunications  and  networking  markets and a standard  has not yet
emerged.  The Company's  success will depend on the successful  development of a
market for its  customers'  products.  It is likely that over the next few years
additional  competitors  will  enter the  market  with new  products.  These new
competitors may have  substantially  greater  financial and other resources than
the  Company.   Competition  among  manufacturers  of  semiconductors  like  the
Company's  products  typically  occurs at the design  stage,  where the customer
evaluates  alternative  design  approaches  that  require  integrated  circuits.
Because of shortened product life cycles and even shorter design-in cycles,  the
Company's competitors have increasingly frequent opportunities to achieve design
wins in next  generation  systems.  Any  success  by the  Company's  competitors
supplanting the Company's  products would have a material  adverse effect on the
Company's operating results.

ACCESS TO WAFER FABRICATION AND OTHER MANUFACTURING CAPACITY

          The Company does not own or operate a wafer fabrication facility,  and
all of its semiconductor  device requirements are supplied by outside foundries.
Substantially  all  of  the  Company's   semiconductor  products  are  currently
manufactured by third party foundry  suppliers.  The Company's foundry suppliers
fabricate products for other companies and produce products of their own design.
The  Company's  reliance on  independent  foundries  involves a number of risks,
including  the  absence  of  adequate   capacity,   the   unavailability  of  or
interruptions in access to certain process technologies and reduced control over
delivery  schedules,  manufacturing  yields and  costs.  In the event that these
foundries  are unable or  unwilling  to continue to  manufacture  the  Company's
products in required  volumes,  the  Company  will have to identify  and qualify
acceptable additional or alternative foundries. This qualification process could
take six months or longer.  No assurance can be given that any such source would
become  available  to the Company or that any such source would be in a position
to satisfy the Company's  production  requirements in a timely basis, if at all.
Any  significant  interruption  in the supply of  semiconductors  to the Company
would result in the  allocation  of products to  customers,  which in turn could
have a material adverse effect on the Company's operating results.

          All  of  the  Company's   semiconductor   products  are  assembled  by
sub-assemblers  in  Asia.  Shortages  of raw  materials  or  disruptions  in the
provision of services by the Company's  assembly  houses or other  circumstances
that would  require the Company to seek  additional  or  alternative  sources of
supply or assembly could lead to supply constraints or delays in the delivery of
the Company's  products.  Such  constraints  or delays may result in the loss of
customers or other  adverse  effects on the  Company's  operating  results.  The
Company's  reliance on independent  assembly  houses  involves a number of other
risks, including reduced control over delivery schedules, quality assurances and
costs and the possible  discontinuance of such contractors'  assembly processes.
Any supply or other  problems  resulting  from such risks  would have a material
adverse effect on the Company's operating results.

CUSTOMER CONCENTRATION

          The Company has no long-term  volume purchase  commitments from any of
its major customers.  In 1993, 1994, and 1995 Apple Computer,  Inc.  represented
more than 10% of the revenues of the Company. For the first nine months of 1996,
a modem board  assembler  represented  approximately  10% of the revenues of the
Company.  The  reduction,  delay  or  cancellation  of  orders  from one or more
significant  customers  could  materially  and  adversely  affect the  Company's
operating  results.  Due to the  relatively  short  product  life  cycles in the
telecommunications  and data  communications  markets,  the Company's  operating
results  would  be  materially  and  adversely  affected  if one or  more of its
significant  customers  were  to  select  devices  manufactured  by  one  of the
Company's competitors for inclusion in future product generations.  There can be
no assurance that the Company's  current customers will continue to place orders
with the Company,  that orders by existing customers will continue at the levels
of previous  periods or that the Company will be able to obtain  orders from new
customers.  Loss  of one  or  more  of  the  Company's  current  customers  or a
disruption in the Company's sales and distribution channels could materially and
adversely affect the Company's operating results.

INTERNATIONAL OPERATIONS

          During  fiscal years 1993,  1994 and 1995 and the first nine months of
fiscal 1996,  international  sales accounted for approximately 32%, 38%, 39% and
56% of the  Company's  net  revenues,  respectively.  The Company  expects  that
international  sales will continue to represent a significant portion of its net
revenues for the foreseeable  future.  PMC's operations,  which are primarily in
Canada,  are expected to represent a larger  percentage of the Company's overall
operations.  In  addition,  substantially  all of  the  Company's  products  are
manufactured,  assembled and tested by independent third parties in Asia. Due to
its  reliance  on  international  sales and foreign  third-party  manufacturing,
assembly  and  testing  operations,  the  Company  is  subject  to the  risks of
conducting business outside of the United States. These risks include unexpected
changes in, or impositions of, legislative or regulatory requirements and policy
changes affecting the telecommunications and data communications markets, delays
resulting from difficulty in obtaining  export licenses for certain  technology,
tariffs quotas, exchange rates and other trade barriers and restrictions, longer
payment  cycles,   greater   difficulty  in  accounts   receivable   collection,
potentially  adverse  taxes,  the burdens of complying with a variety of foreign
laws and other factors beyond the Company's control. The Company is also subject
to general  geopolitical risks in connection with its international  operations,
such as political,  social and economic  instability,  potential hostilities and
changes in  diplomatic  and trade  relationships.  Sales in Europe are generally
denominated  in local  currencies,  while  sales in the  rest of the  world  are
generally  denominated in U.S. dollars.  As a result,  the Company is subject to
the risks of currency  fluctuations.  There can be no assurance that one or more
of the  foregoing  factors  will  not  have a  material  adverse  effect  on the
Company's operating results.

FUTURE CAPITAL NEEDS

          The Company must continue to make significant  investments in research
and  development  as well as capital  equipment and expansion of facilities  for
networking  products.  The Company's future capital  requirements will depend on
many  factors,  including,  among  others,  product  development,  the Company's
ability to sell  existing  modem  chipset  inventories,  investments  in working
capital, and acquisitions or complementary businesses, products or technologies.
To the extent that existing  resources and future  earnings are  insufficient to
fund the Company's  operations,  the Company may need to raise  additional funds
through  public or private debt or equity  financings.  If additional  funds are
raised through the issuance of equity  securities,  the percentage  ownership of
current shareholders will be reduced and such equity securities may have rights,
preferences or privileges senior to those of the holders of the Company's Common
Stock. No assurance can be given that additional  financing will be available or
that, if available, it can be obtained on terms favorable to the Company and its
shareholders.  If adequate funds are not available,  the Company may be required
to delay, limit or eliminate some or all of its proposed operations.

DEPENDENCE ON KEY PERSONNEL

          The  Company's  success  depends  to a  significant  extent  upon  the
continued  services of its key technical  personnel,  particularly  those highly
skilled at the design and test  functions  involved in the  development  of high
speed  networking  products  and  related  software.  The  competition  for such
employees is intense.  As a result of the  Company's  decision to exit the modem
business,  certain key  administrative  and engineering  personnel may terminate
their  employment by the Company.  The Company  cannot assure that the retention
incentives which the Company has put in place will be sufficient to retain these
individuals. The loss of the services of one or more of these key personnel, and
any difficulties  the Company may experience in hiring  qualified  replacements,
would materially and adversely affect the Company's operating results.

PATENTS AND PROPRIETARY RIGHTS

          The Company's ability to compete is affected by its ability to protect
its  proprietary  information.  The Company  relies on a combination of patents,
trademarks,  copyrights,  trade  secret  laws,  confidentiality  procedures  and
licensing arrangements to protect its intellectual property rights. There can be
no  assurance  that  patents  will  issue  from  any  of the  Company's  pending
applications or that any claims allowed will be of sufficient scope or strength,
or be issued in all  countries  where the  Company's  products  can be sold,  to
provide  meaningful  protection or any commercial  advantage to the Company.  In
addition,  competitors of the Company may be able to design around the Company's
patents.  The laws of certain foreign countries in which the Company's  products
are or may be developed,  manufactured or sold,  including  various countries in
which the  Company's  products are or may be  developed,  manufactured  or sold,
including various  countries in Asia, may not protect the Company's  products or
intellectual  property  rights to the same  extent as do the laws of the  United
States and thus make the  possibility of piracy of the Company's  technology and
products  more  likely.  There can be no  assurance  that the steps taken by the
Company to protect  its  proprietary  information  will be  adequate  to prevent
misappropriation  of its technology or that the Company's  competitors  will not
independently develop technologies that are substantially equivalent or superior
to the Company's technology.

          The semiconductor industry is characterized by vigorous protection and
pursuit of  intellectual  property  rights or positions,  which have resulted in
significant and often  protracted and expensive  litigation.  The Company or its
customers  or  foundries  have in the  past,  and may  from  time to time in the
future,  be notified of claims  that the  Company may be  infringing  patents or
other intellectual  property rights owned by third  parties.  If it is necessary
or  desirable,  the  Company may seek  licenses  under  patents or  intellectual
property  rights.  There can be no assurance  that licenses will be available or
that the terms of any offered  license will be  acceptable  to the Company.  The
failure  to  obtain a license  from a third  party  for  technology  used by the
Company could cause the Company to incur substantial  liabilities and to suspend
the  manufacture  of  products  or the use by the  Company's  foundry  suppliers
requiring  the  technology.  In the  past,  the  Company's  customers  have been
required to obtain licenses from and pay royalties to third parties for the sale
of systems incorporating the Company's  semiconductor devices. If this occurs in
the future, the customers'  businesses may be materially and adversely affected,
which in turn would have a material  adverse  effect on the Company's  operating
results.  Furthermore,  the Company may initiate  claims or  litigation  against
third  parties  for  infringement  of the  Company's  proprietary  rights  or to
establish the validity of the  Company's  proprietary  rights.  Litigation by or
against  the  Company  could  result in  significant  expense to the Company and
divert the efforts of the Company's technical and management personnel,  whether
or not such litigation results in a favorable  determination for the Company. In
the event of an adverse  result in any such  litigation,  the  Company  could be
required to pay  substantial  damages,  cease the  manufacture,  use and sale of
infringing  products,  spend  significant  resources  to develop  non-infringing
technology,  discontinue the use of certain  processes or obtain licenses to the
infringing  technology.  There can be no  assurance  that the  Company  would be
successful  in such  development  or that such  licenses  would be  available on
reasonable  terms, or at all, and any such  development or license could require
expenditures  by the Company of  substantial  time and other  resources.  Patent
disputes  in  the  semiconductor   industry  have  often  been  settled  through
cross-licensing  arrangements.  Because  the Company  currently  does not have a
substantial  portfolio  of  patents,  the  Company  may not be able to settle an
alleged patent  infringement  claim through a cross-licensing  arrangement.  Any
successful  third party claim against the Company or its customers for patent or
intellectual property infringement,  would have a material adverse effect on the
Company's operating results.


ACQUISITIONS

          The Company's strategy may involve, in part, acquisitions of products,
technologies or businesses from third parties. Identifying and negotiating these
acquisitions  may divert  substantial  management  time away from the  Company's
operations.  An  acquisition  could absorb  substantial  cash  resources,  could
require the Company to incur or assume debt  obligations,  or could  involve the
issuance  of  additional  equity  securities  of the  Company.  The  issuance of
additional  equity  securities  could  dilute,  and could  represent an interest
senior to the rights of, then outstanding  common stock. An acquisition which is
accounted  for as a  purchase,  like  the  acquisition  of PMC in  1994  and the
acquisition  of  certain  assets  of  Bit  in  September  1996,   could  involve
significant one-time write-offs,  and could involve the amortization of goodwill
and other intangible assets over a number of years, which would adversely affect
earnings  in those  years.  Any  acquisition  will  require  attention  from the
Company's  management  to  integrate  the  acquired  entity  into the  Company's
operations,  may require the Company to develop  expertise  outside its existing
businesses and may result in departures of management of the acquired entity. An
acquired entity may have unknown  liabilities,  and its business may not achieve
the results anticipated at the time of the acquisition.

VOLATILITY OF STOCK PRICE

          Factors such as  announcements  of the introduction of new products by
the  Company  or  its  competitors,  quarterly  fluctuations  in  the  Company's
financial results or the financial results of other  semiconductor  companies or
of  companies in the  personal  computer  industry,  general  conditions  in the
semiconductor  industry and conditions in the financial markets have in the past
caused the price of the Common Stock to fluctuate  substantially,  and may do so
in the future. In addition,  the stock market has recently experienced price and
volume fluctuations, which have particularly affected the market prices for many
high  technology  companies and which have often been unrelated to the operating
performance of the specific companies.


                                 USE OF PROCEEDS

          The Company will not receive any proceeds  from the sale of the Shares
but will pay all expenses related to the  registration of the Shares.  See "Plan
of Distribution."


                              SELLING SHAREHOLDERS

          The Shares of the Common  Stock of the  Company  are to be offered for
the account of BIT and the Selling  Shareholders.  Prior to the offering BIT may
hold up to all the Shares of Common Stock, and may offer and sell all the Shares
pursuant to this  Prospectus.  The  following  table sets forth the name of each
Selling Shareholder, the aggregate maximum number of shares of Common Stock each
Selling  Shareholder  may be  entitled  to out of the Shares  and the  aggregate
number of shares of Common Stock registered hereby that each Selling Shareholder
may offer and sell pursuant to this  Prospectus.  All of the Shares  offered are
issued and  outstanding as of the date of this  Prospectus.  Because BIT and the
Selling  Shareholders  may sell all or a portion  of the  Shares at any time and
from time to time after the date  hereof,  no estimate can be made of the number
of  shares  of Common  Stock  that each  Selling  Shareholder  may  retain  upon
completion of the Offering. To the knowledge of the Company, none of the Selling
Shareholders has any material  relationship with the Company except as set forth
in the footnotes to the following table. <PAGE>


                                                                 
<TABLE>
<CAPTION>                                                             
                                                                                              Shares Entitled       Shares to be 
                                                                                                to Prior to        Offered for the
Selling Shareholder                                                                            the Offering      Selling Shareholder
<S>                                                                                              <C>
1215 ASSOCIATES                                                                                     140
ABBATE, ANTHONY M. and ALLIE J. JT TEN                                                              280
AENEAS VENTURE GROUP                                                                             73,744
AGRON, RUTH and GARY JT TEN                                                                         140
AKERS, WILLIAM B                                                                                    280
ALCORN, WILLIAM  C/O WOOD STRUCTURES, INC                                                           140
ALRUMAIH, ABDULRAHMAN N                                                                             280
AMSOUTH BANK NA TTEE, NORWOOD CLINIC INC PC MONEY PURCHASE PENSION TRUST FBO R. CARRAWAY            140
ANDERSON, LARRY                                                                                     140
ANDREWS, MILBREY W                                                                                  140
ARATA, MARGIT W                                                                                     280
ARBITTER, ARNOLD I. C/O S.J. BERARDINO                                                              140
AYANIAN, ZAVEN S. MR                                                                                140
B&G TRADERS INC PROFIT SHARING PLAN & TRUST 002 FBO GARY GOLDSTEIN                                  140
BAIRD, DAVIS                                                                                        140
BANCBOSTON VENTURES                                                                              38,954
BANCORP HAWAII SBIC #303                                                                            403
BATTERTON, THOMAS H                                                                                 280
BEAR STEARNS, INC. FBO M. SCOTT ATHANS IRA: ACCT #215-01212                                         140
BEAUMONT, PETER W                                                                                   280
BENNER, WILLIAM B.  TTEE  FBO WILLIAM B. BENNER TRUST                                               140
BERGER,  GARY & REIKO                                                                               140
BHATI, BALVEER S. BHATI, SANTOSH  JTWROS                                                            280
BIBBY, DOUGLAS BIBBY, LORRAINE C.  JTWROS                                                           140
BILLINGS, RUTH MCCALDEN, THOMAS                                                                     140
BIT HOLDINGS, LTD ATTN:  ELMER YUEN C/O ROBERT SOLOMON                                          314,412
BLAIR, ROBERT                                                                                       280
BLOCK, MERRILL  BLOCK, EILEEN  JTWROS                                                               561
BOGIN, RONALD J                                                                                     140
BONANNO, PHILIP MDPC PENSION TRUST                                                                  140
BOTTINELLI, MARIAN J                                                                                140
BOWER, THOMAS K                                                                                     140
BOYER, MARY A .                                                                                     280
BRACKEEN, DANIEL L                                                                                  140
BRADY, PAT FOY                                                                                      280
BRAINERD, STEVE                                                                                       1
BRAMAN, DANIEL H.  JR                                                                               561
BRITTAIN, JANE A                                                                                    140
BROOKER, JAMES                                                                                      140
BROOKS FAMILY TRUST ATTN: REX & COLLEEN BROOKS C/O BROOKS TECHNICAL GROUP                             3
BROWN, DONALD                                                                                       140
BROWN, JANE M                                                                                       140
BROWN, MARTIN S                                                                                     140
BROWN, MORTON E                                                                                     140
BROWNING, STEPHEN                                                                                   140
BRUEMMER, BRYAN  TTEE BRYAN BRUEMMER TRUST                                                          140
BRYAN, JACK L                                                                                       140
BUFFUM, BETTY UPHAM                                                                                 140
BURDICK, ALLAN L                                                                                    140
BURKE, JOSEPH A                                                                                     140
BUSCH, SUZANNE TEROLLER  TTEE SUZANNE TEROLLER BUSCH TRUST                                          140
CALL, NEIL J                                                                                        140
CAMPBELL, LINDA FRYE FRYE, NELLIE GARRETT  JTWROS                                                   140
CAREY, WILLIAM J                                                                                    140
CARSON, ELIZABETH E.  TTEE FBO ELIZABETH E CARSON TRUST                                             140
CARTER, ALBERT M                                                                                    140
CASTELLANI, MARIE E                                                                                 140
CB CAPITAL INVESTORS, INC. ATTN: EDWARD L. KOCH III PRESIDENT                                       784
CECKLER, WILLIAM H. CECKLER, MARY E.  JT TEN                                                        140
CEDENO, ANSBERTO (BERT)                                                                               1
CHAPIN, ROSS K                                                                                       11
CLARK, JACK L.CLARK, JUDITH COMM PROP                                                               140
CLEARWATER VENTURES LP                                                                              183
CLINE, ANITA DAVIES                                                                                 140
COBLE, G. WILLIAM                                                                                   140
CONN, J.D. C/O BEACON CADILLAC                                                                      140
CONNOR, THOMAS K                                                                                    140
COOPER, BARRY R                                                                                     280
CORRINGTON, RICHARD                                                                                 140
COSGROVE, ROBERT C.  TTEE ROBERT C COSGROVE TRUST                                                   561
COSTELLO, ROBERT  DR                                                                                140
COSTENBADER, VIRGINIA                                                                               280
COUSIN, WINNIE  CUST FBO JEFFREY N. COUSIN                                                          140
COUSIN, WINNIE  CUST FBO JENNIFER A. COUSIN                                                         140
COUTTS, CARLYLE B                                                                                   140
COWAN, BARBARA                                                                                      140
COWEN & COMPANY ATTN:  MICHAEL DORSEY                                                                53
COYLE, ALFRED J                                                                                      37
CRAWFORD, SAMUEL J. CRAWFORD, PATTI J.  JTWROS                                                      140
CYRIAC, IGNATIUS CYRIAC, BABYCENT I.  JTWROS                                                        140
DE EUROPA, MODELISTA  SA ETUDE DEMMESMUDRY ET IGLEHART 4 RUE CHARLES BONNET                         280
DECKER, MARGARET M.DICKINS, MARGARET E.  JTWROS                                                     561
DEVOR, DANIEL DEVOR,  NINA M.  JTWROS                                                               140
DFC VENTURES, LTD. ATTN:  CHRIS ELLISON GENERAL PARTNER                                           1,411
DIAZ, REINALDO                                                                                      117
DINEGAR, THOMAS                                                                                     140
DOPERAK, GEORGE M                                                                                   140
DOWN EAST ORTHOPEDIC ASSOCIATE                                                                      280
DOZZI, DOMENIC P                                                                                    140
DOZZI, PETER C                                                                                      280
EDWARD RUFF & ASSOCIATES EMPLOYEE PROFIT SHARING PLAN AND TRUST                                     561
EDWARDS, R. DEAN                                                                                    140
EICHEL, NORMAN                                                                                      140
EISING, PETER W                                                                                      87
ENRIGHT, PATRICK                                                                                     22
ERVIN WEIL FAMILY TRUST ATTN:  DAVID WEIL                                                         2,901
EWING, ANDREW  JR EWING, JOANNE B.  JT TEN                                                          140
FARMCO FARMERS & MERCHANTS TRUST CO. OF LONG BEACH TRUST #36-55-8                                   140
FLY, WILLIAM S                                                                                      140
FOLLMAN, ROBERT FOLLMAN, CAROLE  JT TEN                                                             421
FOOTE, LAWRENCE R. FOOTE, ROSEMARY G.  JTWROS                                                       140
FRANTZ, PAUL T                                                                                      280
FRANTZ, THECLA S                                                                                    140
FUCHS, PAUL H                                                                                         1
FUTRELL, J. WILLIAM                                                                                 140
GAJENDRAGADKAR, S.  DR. MDPC BRADLEY CLINIC                                                         280
GARDNER, JOHN O.GARDNER, PENNY A.  JTWROS                                                           140
GATON, LEO S                                                                                        280
GEARY, HELEN S.  TTEE UNDER DECLARATION OF TRUST 11/14/88                                           140
GELLER, ROBERT C                                                                                    140
GERDAU, CARLSON                                                                                     140
GERRIE, ROBERT                                                                                      280
GIBSON, SALLY                                                                                       140
GILCHRIST, WILLIAM TRUSTEE FOR JUDY SCHLOTZHAUER                                                      5
GILCHRIST, WILLIAM TRUSTEE FOR KATHRYN SCHLOTZHAUER                                                   5
GILES, KENNETH E                                                                                     49
GLOVER INVESTMENTS LTD 23 SAN MARTIN STREET MAGALLANES VILLAGE                                    2,804
GOLDSCHLAGER, ARNOLD W                                                                              140
GOSCHA, GARY E                                                                                      280
GRAPHIC ARTS PUBLISHING INC                                                                         140
GROBE, RUTH H                                                                                       280
GUERRA, GASTON G.SURGICAL PRACTICE PROFIT SHARING PLAN                                              280
GULLACE, RALPH                                                                                      140
HALL CAPITAL MANAGEMENT ATTN: RONALD HALL                                                        19,746
HAMMAD, SAMY & SAWSON                                                                               140
HARRIS, EDMUND J. HARRIS, MARILYN C                                                                 140
HARRIS, SARA GRAYSON                                                                                140
HAVANEK, JOSEPH                                                                                     561
HAY, ROBERT F                                                                                       140
HAYDEN, KENNETH                                                                                     140
HAYNES, HARLEY ANDERSON                                                                             140
HEMER, RICHARD E                                                                                    140
HERSH, CARL  TTE MARION HERSH REVOCABLE TRUST DTD 4-29-85                                           140
HIGHNESS, JOEL HIGHNESS, NANCY  JT TEN                                                              140
HODGSON, RICHARD                                                                                  7,759
HOFFMAN, CLIVE & CAROL TTEES CLIVE HOFFMAN ASSOCIATES PROFIT SHARING RETIREMENT PLAN                140
HOLLIS, PHILIP D                                                                                    140
HOOVER, KATHRYN                                                                                     140
HSIANG, SHI-LING C                                                                                  140
HUBBARD, STEVEN S                                                                                27,017
HUDSON, A. RAY  M.D                                                                                 140
HUGHES, PAUL A                                                                                      140
HUGHES, WILLIAM C                                                                                   140
INTERNATIONAL STRATEGIC ALLIANCE  ATTN: GEORGE KOO                                                   70
INTERVEN PARTNERS 1987  ATTN:  JONATHAN E. FUNK                                                     368
INTERVEN PARTNERS II LP ATTN:  WAYNE KINGSLEY CHAIRMAN                                           73,821
ISLAND PARTNERS C/O GEORGE TEXTOR                                                                    38
JACOBS, JOHN  III                                                                                   280
JAQUES, S. CARLENE                                                                                  140
JOHNSON, HOWARD B                                                                                    51
JOHNSON, S. ALLAN                                                                                   280
JONES, CONLEY ROY                                                                                   280
JONES, WHITNEY M                                                                                    140
JORDAN, GARY JORDAN, ANNETTE                                                                        561
JOSEPH KIRK DAVENPORT (INC) RETIREMENT TRUST                                                        140
JOY, WILLIAM                                                                                          4
JUSTICE, SUSAN H                                                                                    140
KAKOS, GERARD S                                                                                     561
KANDATHIL, VALSAMMA TERESA                                                                          140
KANE, ALAN KANE, MARY  JT TEN                                                                       561
KAPLAN, JANET S                                                                                     140
KEE, DR. HERBERT L. KEE, VIRGINIA M                                                                 140
KELEKAR, DILIP  MD TTEE FBO  DILIP R. KELEKAR RETIREMENT TRUST                                      140
KIDDER PEABODY AND COMPANY ATTN: KEN KANAPAN                                                         13
KINGSLEY, WAYNE                                                                                   7,653
KLEINER, EUGENE                                                                                      37
KOBBE, JOHN                                                                                       4,842
KOLBE INC. PROFIT SHARING PLAN                                                                      140
KORNFELD, KENNETH H.KORNFELD, RONDA E.  JTWROS                                                    1,121
KURUVILLA, DR. M. P                                                                                 140
LAESCH, JOHN                                                                                        140
LANDBERG, BETTY                                                                                     280
LANE, CECELIA B                                                                                     140
LAWSING, JAMES F.  III MD PA PROFIT SHARING PLAN UA DTD 6/21/84                                     140
LEHMAN, JOSEPHINE  TTEE FOR WILLIAM LEHMAN RESIDUARY TRUST DTD 2/28/92                              280
LEHMAN, WILLIAM L.  JR                                                                              140
LICHT, HARLEY EXECUTIVE VP BROOKS TECHNICAL GROUP                                                     1
LIN, XIN YING                                                                                       544
LINCOFF, MILTON H. LINCOFF, MIRIAM L.  JT TEN                                                       140
LISSAUER, TED                                                                                       140
LITTLEFIELD, THOM LITTLEFIELD AND SMITH ASSOC                                                         1
LLOYD, PETRINA A                                                                                    140
LOWE, JACK M. LOWE, MARJORIE A.  JTWROS                                                             140
M&L VENTURES ATTN MORT SADOWSKY                                                                     140
MACKINTOSH, J. HERBERT                                                                              140
MACON, GEORGE W.  III                                                                               280
MADDEN, DAVID                                                                                        44
MANER, DOUGLAS O                                                                                    140
MANLEY, THERESA K. (DOZZI, THERESA K.)                                                              140
MARDELLI, T. JOSEPH  TTEE MONEY PURCHASE & PENSION TRUST FBO T JOSEPH MARDELLI                      140
MARSH, ALBERT P.MARSH, ANGELA A.  JT TEN                                                            140
MAURICE, DEBORAH BUFFUM C/O ALEX C. HOROWITZ                                                        140
MAXWELL, JAMES T. MD                                                                                140
MCGINN, JOHN  M.D.PROFIT SHARING PLAN DATED 9/25/85                                                 280
MCGURN, WILLIAM MCGURN, DARLENE                                                                     280
MCLARNEY, CHARLES PATRICK MCLARNEY, MARTINA J                                                       140
MCNEE, JOHN C.MCNEE, DOROTHY M.  JT TEN                                                             140
MEMORIAL MEDICAL CENTER FOUNDATION ATTN: TIM JACKERT                                                140
MERHAUT, JAMES                                                                                        2
METZE, JARRED R. METZE, BRENDA  JTWROS                                                              280
MICHAUD, JOSEPH E. MICHAUD, JONETTE                                                                 561
MIDLAND INC                                                                                         280
MILLER, BRUCE                                                                                     7,719
MILLER, DAVID C                                                                                     280
MILLER, GORDON                                                                                      217
MILLER, HARRIET C                                                                                   280
MILLER, JOHN H.  III                                                                                280
MILLER, RICHARD P                                                                                   561
MILLS, JANICE M                                                                                       1
MOORE, ALLEN  III & ANNE TRUSTEES FBO ALLEN MOORE III TRUST DTD 7-27-87                             280
MOORMAN, DALE & MILDRED                                                                             280
MORGAN, DONALD G                                                                                    280
MORRIS, JANET M                                                                                   7,719
MORTON, SCOTT M                                                                                       1
MOSS, WILLIAM F                                                                                     140
MUTRUX, PHILIPPE G                                                                                  140
NASON, IRVING C.  MD TTEE IRVING C NASON MD PENSION PLAN                                            140
NEAL, W. RONALD  NEAL, MONA S.  JT. TEN                                                             140
NETTLES, CHARLES NETTLES, EMMA  JTWROS                                                              140
NIMEH, NADIM                                                                                        140
NOLAN, DAVID  AND  NOLAN, CYNTHIA  JTWROS                                                           140
NORTHEAST VENTURES ATTN: W. BRIAN SATTERLEE                                                         809
NUBER, CLARK & CO CONTRIBUTORY PROFIT SHARING PLAN AND TRUST FBO THOMAS J SEDLOCK                   140
O'DONNELL & MASUR, L.P.ATTN:  MARK MASUR                                                            416
ONEIDA SURGICAL PC PENSIONPLAN TRUST DTD 6/15/73 FBO ROBERT E. PICKELS, JR. MD                      140
OTTEMAN, MERLIN  DR. NORTHERN COLO. SURGICAL ASSOC                                                  140
PACIFIC VENTURE FINANCE ATTN:  NATHALIE WESSLING                                                    178
PAINEWEBBER FBO  PAINEWEBBER DEVELOPMENT CORP. CARRIED INTEREST SHARING PLAN                        360
PAINEWEBBER FBO  PAINEWEBBER DEVELOPMENT CORP                                                     1,158
PAINEWEBBER INC. FBO ANDREW, FRED W                                                                 140
PAINEWEBBER INC. FBO ASHTON, CHARLES F IRA                                                          140
PAINEWEBBER INC. FBO BEARD, ESTHER ANN (IRA)                                                        140
PAINEWEBBER INC. FBO BIBBY, DOUGLAS  IRA                                                            140
PAINEWEBBER INC. FBO BREWER, LESLIE IRA                                                             140
PAINEWEBBER INC. FBO CAROL SHRIBER IRA                                                              140
PAINEWEBBER INC. FBO CRONIN, TERRENCE  DR.  IRA                                                     561
PAINEWEBBER INC. FBO CROSSLAND, MERLE F IRA                                                         140
PAINEWEBBER INC. FBO DAVENPORT, JEAN MCLEAN                                                         140
PAINEWEBBER INC. FBO DUNN, WILLIAM W IRA                                                            140
PAINEWEBBER INC. FBO FOLEY, TIMOTHY W IRA                                                           140
PAINEWEBBER INC. FBO GERIAK, JAMES W.  IRA                                                          280
PAINEWEBBER INC. FBO HANDY, PETER                                                                   140
PAINEWEBBER INC. FBO MICHIGAN AVENUE NAT'L BANK FBO JACK M. BUFFINGTON HR-10                        280
PAINEWEBBER INC. FBO PAUL, IRVING A IRA                                                             140
PAINEWEBBER INC. FBO ROGERS, JOHN W                                                                 140
PAINEWEBBER INC. FBO ROSE, PAUL F                                                                   140
PAINEWEBBER INC. FBO RUCINSKI, TIM SEP IRA                                                          140
PAINEWEBBER INC. FBO SECURITY PACIFIC TRUSTEE FOR ROBERT L. SHIPP SR. IRA                           561
PAINEWEBBER INC. FBO SLEEPER, MITCHELL IRA                                                          280
PAINEWEBBER INC. FBO WAHLERT, ROBERT C/O FDL FOODS                                                  140
PAINEWEBBER INC. FBO WEST, DOUGLAS M  IRA                                                           140
PAINEWEBBER TRUST COMPANY METZGER, FRANK C KEOGH                                                    140
PAINEWEBBER TRUST COMPANY FBO GILMER, JOHN H KEOGH                                                  140
PATCH, RICHARD A                                                                                    140
PATHOLOGY ASSOCIATES INC TTEE FBO FRANK B KIMBAL PROFIT SHARING PLAN                                140
PATTON, EUGENE J                                                                                    561
PEARSON, HAI                                                                                          1
PEDIATRICS & ADOLESCENT MEDICINE INC. MONEY PURCHASE PLAN & TRUST ATTN: E. LITWER                   140
PENFOLD, MARGARET                                                                                   561
PENGUE, M. LOUIS                                                                                  7,719
PENN, FRANK R                                                                                       140
PENOBSCOT RESPIRATORY PENSION PLAN FBO EDWARD M. HARROW                                             140
PETRIK, JACK S                                                                                      140
PHILLIPS, JAMES W                                                                                   280
PICKETT, JAMES M                                                                                     49
PISTOLE, MICHAEL DEFINED CONT PENSION PLAN EMPLOYEE OF MICHALE PISTOLE                              140
POLAVRAPU, VENUGOPALAKRISHNA POLAVRAPU, ARUNA  JTWROS                                               140
POPS, RICHARD F                                                                                      37
PRATER, LETHA M                                                                                     140
PREIS, WILLIAM PREIS, IRENE M.  JTWROS                                                              140
PRINGLE COMPANY, THE ATTN:  ROGER PRINGLE                                                           563
PRINSTER, LEO T                                                                                     561
PULMONARY MEDICINE ASSOCIATES PROFIT SHARING PLAN FBO JOSEPH HENRY                                  280
PULVARI, CHARLES F                                                                                  140
RANDLES, THOMAS L                                                                                   140
RAVENDHRAN, NATARAJAN  DR                                                                           140
RAYTHEON COMPANY  ATTN:  DAVE DWELLEY  VP OF STRATEGIC BUS. DEVELOP                              90,485
READING, AGNES PEARSON  TTEE FOR THE AGNES PEARSON READING REVOCABLE TRUCT U/A/D 6-26-94            140
REDDY, KUMAR S                                                                                      140
REED, JACK W                                                                                        140
REIDENBACH, FREDERICK N                                                                             140
RETIREMENT ACCOUNTS, INC FBO IRWIN, RONALD B IRA                                                    140
RETIREMENT ACCOUNTS, INC. FBO IRWIN, MERRY E IRA                                                    140
RILEY, LAURA                                                                                        561
RISK, JOHN W.  TTEE JOHN W. RISK LIVING TRUST C/O PAM MOTLAGH - FORD MOTOR CO                       140
RIVERS, ROBERT RIVERS, DOREEN  JTTEN                                                                140
ROBINSON, PATRICIA                                                                                  280
ROSS,  MICHAEL J. ROSS, JENNIFER  COMM PROP                                                         140
ROSSI, ROBERT A                                                                                     140
ROTH, KATHLEEN                                                                                      140
ROTHMAN, PAUL                                                                                       280
RUCINSKI, TIMM                                                                                      561
RUFENER RAYMOND E. , MARTHA J.  JTWROS                                                              140
RUTIGLIANO, ESTATE OF CHARLES R                                                                      17
RUTLAND, GEORGE                                                                                       5
SAHARIA, PRAKASH C.SAHARIA, REETA  JT TEN                                                           140
SALIBA, RUTH                                                                                        140
SALZMAN, JEFFREY                                                                                    421
SANCHALA,  VAJUBHAI DR. SANCHALA, SARSLOATI  JTWROS                                                 140
SAWYER JR., W. TOM                                                                                  561
SAYEGH, JOSEPHINE                                                                                   140
SAYEGH, PAUL                                                                                        140
SCHLOTZHAUER, DALE E                                                                              5,435
SCHLOTZHAUER, DALE ELIZABETH                                                                     23,158
SCHLOTZHAUER, DALE ELIZABETH                                                                         19
SCHLOTZHAUER, DALE ELIZABETH                                                                         19
SCHMIDT, PAUL SCHMIDT, KATHLEEN  JT TEN                                                             140
SEITZ, DANIEL WARD                                                                                  280
SHAW, OLIVER  TRUSTEE FBO OLIVER SHAW LIVING TRUST DTD 9/12/91                                      280
SHEPELA, JOSEPH C. SHEPELA, KAREN S.  TTEES SHEPELA FAMILY TRUST                                    280
SHEPHERD, JAMES W                                                                                     1
SIMPSON, STANLEY S. SIMPSON, WENDY S                                                                280
SKARSTON, ROGER A                                                                                   280
SMAHA, AL                                                                                           140
SMITH & QUIMBY PARTNERSHI C/O COLONIAL CARPETS                                                      140
SMITH, DONALD LITTLEFIELD AND SMITH ASSOCIATES                                                        1
SODERLAND, ROBERT A.  TTEE ROBERT A. SODERLAND LIVING TRUST                                         140
SOLTESZ, LADISLAO (LES)                                                                              49
SOUTHERN ARIZONA ANESTESIA SERVICE PC MON PUR PEN PL&TR AGMT UAD 7-11-85 FBO RONALD W YAKAITIS      140
SPAULDING, C. ARTHUR  TTEE C. ARTHUR SPAULDING LVG TRUST                                            140
SPIGELMIRE, EILEEN C                                                                                140
SPOKANE RADIATION ONCOLOGY ASSOCIATES PROFIT SHARING PLAN FBO DONALD A. SCHMUTZ, M.D                140
STANTON S. BERMAN MD PS PROFIT SHARING PLAN                                                         140
STATE FARM MUTUAL INSURANCE CO.ATTN: JOHN CONCKLIN INVESTMENT DEPARTMENT                         10,413
STEIN, H. THOMAS STEIN, MADLYN W.  JTWROS                                                           140
STEVENS, KENNY                                                                                      561
STEVENS, RONALD W. STEVENS, ROSEMARY N.  JTWROS                                                     561
STRONG, F. CALVERT                                                                                  140
STRONG, F. CALVERT &  SMISSEN, PATRICIA JOAN CO-TTES OF THE FRANCIS L.BUFFUM REV
     LIV TR UAD 12/9/92                                                                             140
SUSZ, MARK A. C/O INTER STATE SERVICE INC                                                           561
SWANSON, MICHAEL SWANSON, MARTHA  JTWROS                                                            140
TESTA, ESTHER C.REVOCABLE TRUST                                                                     140
THE VICTOR FREEMAN INC PROFIT SHARING PLAN                                                          140
THOMPSON, HUGH C.  III                                                                              140
THORNER, BRITTMARIE                                                                                 140
TOONE,EUGENE&WENAAS, JOHN E.J. COTTEES ARIZONA ORAL & MAXILLOFACIAL SURGEONS, P.C 
     PSP  DTD 5-1-72 FBO: JOHN E.J. WENAAS                                                          140
TOUCHSTONE, BLAKE                                                                                   561
TRUSLOW, CAROLINE                                                                                   280
UDY, DOYLE C                                                                                        280
UNION VENTURE CORPORATION ATTN: MIKE NAKAMA                                                       1,919
WALKER, HOWARD A                                                                                    561
WALLER, WILLIAM                                                                                     140
WANG, ELISE T                                                                                        27
WARD, JOHN M                                                                                        140
WARTHMAN, FORREST                                                                                   140
WASHINGTON, J. BARRY                                                                                140
WEBSTER, FRANK A.  FBO JONATHAN A. WEBSTER  CUST                                                    140
WEEDEN CAPITAL MANAGEMENT ATTN:  TOM FLAHERTY                                                       220
WEINER, LAWRENCE WEINER, JOAN JT TEN                                                                140
WEINER, STANFORD A                                                                                  140
WEISS, WILLIAM J.WEISS, LOLA W                                                                      561
WEISSBERG, GLORIA                                                                                   561
WELCH, HENRY W.  TTEE FOR THE EDITH H. WELCH FAMILY TRUST DTD 12/29/83                              280
WESTMINSTER MEMORIAL PARK INC                                                                       140
WESTMORELAND, WILLIAM                                                                             3,860
WIATER, JEROME P.  MDPC                                                                             140
WILKINSON, LAWRENCE                                                                                 140
WILLIAM T. MCGURN INC.PENSION PLAN AND TRUST                                                        140
WILLIAM T. MCGURN INC.PROFIT SHARING PLAN & TRUST                                                   140
WILLIAMS, LESLIE L                                                                                  140
WILLSON, J. G.  JR PARTNER JGW & COMPANY                                                            140
WILSON, DOROTHY                                                                                       4
WILSON, GEORGE                                                                                       43
WILSON, GEORGE R.TRUSTEE FOR CHERYL WILSON                                                            1
WILSON, GEORGE R.TRUSTEE FOR CURTIS WILSON                                                            1
WILSON, GEORGE R.TRUSTEE FOR DAVID WILSON                                                             1
WILSON, GEORGE R.TRUSTEE FOR JILL WILSON                                                              1
WITT, AXEL   WITT, MARGARET                                                                         561
WOO, DONNA JUNG                                                                                      50
WOODSON, RONALD G. M.D. TTEE RONALD G. WOODSON,M.D. INC PROFIT SHARING PLAN                         140
XANDER, ALBERT                                                                                      140
YEDDIS, ABE  & BARBARA TEN ENT                                                                      140
YERKES, DOUGLAS D                                                                                   561
YOAKAM, ROBERT E                                                                                    841
YOCUM, MARTIN D.PHYLLIS D YOCUM COMM PROP                                                           280
YOUNG, WILLIAM D.YOUNG, SHARYN  JT TEN                                                              280
ZICKUS, DONALD C                                                                                    140
                                                                                                -------
                                                                                                804,407
</TABLE>

- -------------------
(1)   This  selling  shareholder  served  as an  employee  of BIT  prior  to the
      Company's  acquisition of certain assets of BIT and currently serves as an
      employee of a subsidiary of the Company .

                              PLAN OF DISTRIBUTION

         The shares of Common Stock covered hereby may be distributed  from time
to time by BIT to the Selling Shareholders,  or sold or distributed from time to
time by or for  the  account  of BIT or the  Selling  Shareholders.  BIT and the
Selling  Shareholders  will act independently of the Company in making decisions
with respect to their respective sales of the shares.

         The  Selling  Shareholders  may sell or  distribute  some or all of the
Shares  from time to time  through  underwriters  or dealers or brokers or other
agents or directly to one or more purchasers, in transactions (which may involve
block  transactions)  on Nasdaq,  privately  negotiated  transactions  or in the
over-the-counter  market,  or  in  a  combination  of  such  transactions.  Such
transactions  may be  effected  by the  Selling  Shareholders  at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices, at negotiated prices, or at fixed prices, which may be changed. Brokers,
dealers, agents or underwriters  participating in such transactions as agent may
receive  compensation in the form of discounts,  concessions or commissions from
the Selling  Shareholders  (and,  if they act as agent for the purchaser of such
shares,  from such  purchaser).  Usual and customary or specifically  negotiated
brokerage  fees  or  commissions  may be  paid by the  Selling  Shareholders  in
connection with such sales.

         The Selling Shareholders and any such underwriters, brokers, dealers or
agents that participate in such  distribution may be deemed to be "underwriters"
within the meaning of the  Securities  Act, and any  discounts,  commissions  or
concessions received by any such underwriters,  brokers, dealers or agents might
be deemed to be underwriting discounts and commissions under the Securities Act.
Neither the Company nor the Selling  Shareholders  can  presently  estimate  the
amount of such  compensation.  The  Company  knows of no  existing  arrangements
between any Selling Shareholder and any other Selling Shareholder,  underwriter,
broker,  dealer  or other  agent  relating  to the sale or  distribution  of the
Shares.

         Under  applicable  rules and  regulations  under the Exchange  Act, any
person  engaged in a  distribution  of any of the Shares may not  simultaneously
engage in market  activities  with  respect to the Common  Stock for a period of
nine business days prior to the commencement of such  distribution.  In addition
and without limiting the foregoing,  the Selling Shareholders will be subject to
applicable  provisions  of the  Exchange  Act  and  the  rules  and  regulations
thereunder,  including without  limitation Rules 10b-5,  10b-6 and 10b-7,  which
provisions  may limit the timing of purchases  and sales of any of the Shares by
the Selling  Shareholders.  All of the foregoing may affect the marketability of
the Common Stock.

         The Company will pay substantially all of the expenses incident to this
Offering  of the Shares by the  Selling  Shareholders  to the public  other than
commissions and discounts of underwriters, brokers, dealers or agents.


                                  LEGAL MATTERS

         The validity of the Shares  offered  hereby will be passed upon for the
Company by Wilson Sonsini Goodrich & Rosati, a Professional Corporation.

                                     EXPERTS

         The   consolidated   financial   statements   and  schedule  of  Sierra
Semiconductor  Corporation  included in the Sierra  Semiconductor  Corporation's
Annual  Report  (Form  10-K) for the year ended  December  31,  1995,  have been
audited by Ernst & Young LLP, independent auditors, as set forth in their report
included  therein  and  incorporated  herein  by  reference.  Such  consolidated
financial  statements are incorporated by reference herein in reliance upon such
reports  given upon the  authority  of such firm as experts  in  accounting  and
auditing.
<PAGE>
                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The following  table sets forth the expenses  payable by the Registrant
in connection with the filing of this Registration Statement (1).


Securities and Exchange Commission Filing Fee..........................$3,001.29

Nasdaq Additional Listing Fee.........................................$10,240.00

Printing and Engraving Expenses........................................ --

Legal Fees and Expenses................................................$5,000.00

Accounting Fees and Expenses...........................................$5,000.00

Blue Sky Fees and Expenses............................................. --

Transfer Agent and Registration Fees...................................$1,000.00

Miscellaneous expenses.................................................$1,758.71
                                                                       ---------

         Total........................................................$26,000.00

(1) All of such  expenses,  other than the filing  fee for the  Commission,  are
estimates and are subject to future contingencies.

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Section 317 of the California  Corporations  Code authorizes a court to
award,  or a corporation's  board of directors to grant,  indemnity to directors
and officers in terms  sufficiently broad to permit such  indemnification  under
certain  circumstances  for liabilities  (including  reimbursement  for expenses
incurred)  arising under the Securities Act. The Company's  Restated Articles of
Incorporation and Bylaws provide for indemnification of its directors, officers,
employees  and other agents to the maximum  extent  permitted by the  California
Corporations  Code.  In addition,  the Company has entered into  Indemnification
Agreements with its officers and directors.

         Insofar as indemnification for liabilities arising under the Securities
Act may be  permitted to  directors,  officers  and  controlling  persons of the
Company  pursuant  to the  California  Corporation  Law  and the  Bylaws  of the
Company, the Company has been informed that in the opinion of the Securities and
Exchange  Commission such  indemnification is against public policy as expressed
in the Securities Act and is therefore unenforceable.

ITEM 16.  EXHIBITS

         The  following   exhibits  are  filed  as  part  of  this  Registration
Statement:

NUMBER   EXHIBIT DESCRIPTION

5.1               Opinion of Counsel as to the validity of the Shares.

23.1              Consent of Counsel (included in Exhibit 5.1 above).

23.2              Consent of Ernst & Young LLP.

24.1              Power of Attorney (see page II-3).


<PAGE>

ITEM 17.  UNDERTAKINGS.

         (a)      The undersigned Registrant hereby undertakes:

                  (1) To file,  during any  period in which  offers or sales are
being made, a post-effective amendment to this Registration Statement:

                       (i)  To  include  any   prospectus  required  by  Section
                            10(a)(3) of the Securities Act;

                      (ii)  To  reflect in  the prospectus  any  facts or events
                            arising   after   the   effective   date   of   this
                            Registration   Statement   (or   the   most   recent
                            post-effective     amendment     thereof)     which,
                            individually  or  in  the  aggregate,   represent  a
                            fundamental  change in the  information set forth in
                            this Registration Statement;

                     (iii)  To  include any  material  information  with respect
                            to the plan of distribution not previously disclosed
                            in  this  Registration  Statement  or  any  material
                            change  to such  information  in  this  Registration
                            Statement.

         Provided,  however,  that paragraphs  (a)(1)(i) and (a)(1)(ii) above do
not  apply  if the  information  required  to be  included  in a  post-effective
amendment by these  paragraphs  is contained in periodic  reports  filed with or
furnished by the Registrant  pursuant to Section 13 or 15(d) of the Exchange Act
that are incorporated by reference in this Registration Statement.

                  (2) That, for the purpose of determining  any liability  under
the Securities Act, each such  post-effective  amendment shall be deemed to be a
new registration  statement  relating to the securities  offered herein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

                  (3) To remove from  registration by means of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the Offering.

         (b) The undersigned  Registrant hereby undertakes that, for purposes of
determining  any  liability  under  the  Securities  Act,  each  filing  of  the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Exchange Act that is  incorporated by reference in this  Registration  Statement
shall be deemed to be a new  registration  statement  relating to the securities
offered herein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.

         (c)  Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act may be permitted to directors,  officers and controlling  persons
of the  Registrant  pursuant to the  foregoing  provisions,  or  otherwise,  the
Registrant  has  been  advised  that  in  the  opinion  of the  Commission  such
indemnification  is against public policy as expressed in the Securities Act and
is,  therefore,  unenforceable.  In the event  that a claim for  indemnification
against such  liabilities  (other than the payment by the Registrant of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.



<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-3 and has  duly  caused  this
Registration  Statement or  amendment  thereto to be signed on its behalf by the
undersigned,  thereunto  duly  authorized,  in the  City of San  Jose,  State of
California, on October 23, 1996.


                        SIERRA SEMICONDUCTOR CORPORATION

                                    By: /s/ JAMES V. DILLER


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

                                    James V. Diller
                                    Chief Executive Officer and  Chairman of the
                                      Board of Directors
                                   (Principal Executive Officer)
                                   (Duly Authorized Officer)

         Know All Persons By These  Presents,  that each person whose  signature
appears below  constitutes and appoints James V. Diller and Glenn C. Jones,  and
each of them, his true and lawful attorneys-in-fact, and agents, with full power
of substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any and all amendments (including post-effective
amendments)  to this  Registration  Statement  and to file  the  same,  with all
exhibits thereto and documents in connection therewith,  with the Securities and
Exchange Commission,  granting unto said  attorneys-in-fact and agents, and each
of  them,  full  power  and  authority  to do and to be  done in and  about  the
premises,  as  fully  to all  intents  and  purposes  as he might or could do in
person,  hereby  ratifying and  confirming all that said  attorneys-in-fact  and
agents or any of them, or their or his substitute or  substitutes,  may lawfully
do so or cause to be done by virtue hereof.



<PAGE>


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

                   Signature       Title                                  Date

/S/ JAMES V. DILLER           Chief Executive Officer           October 23, 1996
- --------------------          (Principal Executive Officer)               
James V. Diller               and Chairman of the Board of                     
                              Directors

/S/ GLENN C. JONES            Senior Vice President,            October 23, 1996
- --------------------          Finance and Chief Financial
Glenn C. Jones                Officer (Principal Financial 
                              and Accounting Officer)                    
                                   
/S/ALEXANDRE BALKANSKI        Director                          October 23, 1996
- --------------------
Alexandre Balkanski

/S/ MICHAEL L. DIONNE         Director                          October 23, 1996
- ---------------------
Michael L. Dionne

/S/ FRANK J. MARSHALL         Director                          October 23, 1996
- ---------------------
Frank J. Marshall



<PAGE>


                                  EXHIBIT INDEX

NUMBER   EXHIBIT DESCRIPTION

5.1               Opinion of Counsel as to the validity of the Shares.

23.1              Consent of Counsel (included in Exhibit 5.1 above).

23.2              Consent of Ernst & Young LLP.

24.1              Power of Attorney (see page II-3).


<PAGE>


                                                                     Exhibit 5.1

                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION


                               650 PAGE MILL ROAD
                       PALO ALTO, CALIFORNIA 94304-1050        JOHN ARNOT WILSON
                TELEPHONE 415-493-9300 FACSIMILE 415-493-6811            RETIRED

         
                                     




                                                                October 23, 1996


Sierra Semiconductor Corporation
2075 North Capitol Avenue
San Jose, CA 95132


     Re: Sierra Semiconductor Corporation Registration Statement on Form S-3


Gentlemen & Ladies:

     In connection with the  preparation  and filing of a Form S-3  Registration
Statement  under  the  Securities  Act of  1933,  as  amended,  relating  to the
distribution by Bipolar Integrated Technology, Inc. ("BIT") to its stockholders,
or resale or distribution by or for the account of BIT or of those stockholders,
of up to 804,407 shares of the Company's Common Stock  ("Shares"),  all of which
are issued and  outstanding,  we have examined  originals or copies of corporate
records,  certificates of public officials and officers of the Company and other
instruments  relating to the authorization and issuance of such shares of Common
Stock as we have deemed  relevant  and  necessary  for the  opinion  hereinafter
expressed.
              
     On the basis of the  foregoing,  we are of the opinion that the issuance of
the Shares has been duly  authorized  by the Board of  Directors of the Company,
and the Shares are validly issued, fully paid and nonassessable.

     We  hereby  consent  to the  filing of the  opinion  as an  exhibit  to the
Registration  Statement  and  further  consent  to the use of our name  wherever
appearing in the Registration Statement.

                                        Sincerely,

                                        /s/ Wilson Sonsini Goodrich & Rosati


                                        
                                                                          
                                        ------------------------------------
                                        WILSON SONSINI GOODRICH & ROSATI
                                        Professional Corporation

<PAGE>
                                                                    Exhibit 23.2



               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS



We  consent to the  reference  to our firm under the  caption  "Experts"  in the
Registration   Statement   (Form  S-3),   and  related   Prospectus   of  Sierra
Semiconductor  Corporation for the  registration of 804,407 shares of its common
stock and to the  incorporation by reference therein of our report dated January
17, 1996, with respect to the consolidated financial statements and schedules of
Sierra  Semiconductor  Corporation included in its Annual Report (Form 10-K) for
the year ended  December  31,  1995,  filed  with the  Securities  and  Exchange
Commission.


                                                  /s/ Ernst & Young LLP
                                                  -------------------------
                                                  ERNST & YOUNG LLP


San Jose, California
November 4, 1996






<PAGE>


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