Exhibit 99.1

                 IDT Reports Earnings for the Second Quarter of
    Fiscal Year 2005; Company Announces $50 Million Stock Repurchase Program

    SANTA CLARA, Calif.--(BUSINESS WIRE)--Oct. 21, 2004--IDT(TM)
(Integrated Device Technology, Inc.) (Nasdaq:IDTI), a leading
communications IC company, today announced its quarterly results for
the quarter ended September 26, 2004, its second quarter of fiscal
2005.
    Revenues for the second fiscal quarter were $96.7 million, a
decrease of 4.6 percent compared to the first quarter of fiscal 2005
and an increase of 19.7 percent from the second quarter of fiscal
2004. On a non-GAAP basis, net income for the second fiscal quarter
was $9.5 million, or $0.09 per diluted share, compared to a net income
of $12.3 million, or $0.11 per diluted share, in the first quarter of
fiscal 2005 and a net loss of $1.1 million, or ($0.01) per diluted
share, for the same quarter one year ago.
    Including certain costs, charges and gains in accordance with
GAAP, the Company reported net income of $8.9 million, or $0.08 per
diluted share, in the second quarter of fiscal 2005 compared to a net
loss of $5.0 million, or ($0.05) per diluted share, in the first
quarter of fiscal 2005. On a GAAP basis, the Company reported net
income of $1.2 million, or $0.01 per diluted share, for the second
quarter of fiscal 2004. The second fiscal quarter of 2005 GAAP results
include a $1.6 million gain on the sale of assets related to
discontinued wafer operations in Salinas, Calif. For the first quarter
of fiscal 2005, GAAP results include a one-time impairment charge of
$12.8 million on an investment in a privately held technology company.
Further information, including a detailed reconciliation of non-GAAP
to GAAP results, is provided in the financial tables of this release.
    "The September quarter was a difficult quarter as many of our
customers reduced purchasing activity to realign their inventory
levels in the enterprise and wireless market segments. We anticipate
this will continue through our December quarter," said Greg Lang,
president and CEO of IDT. "We continue to be optimistic about the long
term demand opportunity in the end markets we serve, including the
packet- processing solutions we offer."
    In other news, IDT announced that its Board of Directors has
approved a stock repurchase program for the repurchase of up to $50
million of its Common Stock. Repurchases under the Company's stock
repurchase program may be made from time to time in the open market
and in negotiated transactions, including block transactions or
accelerated stock repurchase transactions, at times and at prices
considered appropriate by the Company. The repurchase program is
effective immediately and may be discontinued at any time. As of
October 20, 2004, IDT had approximately 106.7 million shares of Common
Stock outstanding.

    Q2FY05 Highlights

    --  Marking its 20th year listed on The NASDAQ Stock Market, IDT
        President and CEO Greg Lang publicly celebrated the Company
        anniversary by opening the NASDAQ market on Friday, September
        10, 2004 in New York.

    --  Celestica recognized IDT for its excellence in supplier
        performance with a 2003 Partner in Performance award.
        Celestica's annual Partners in Performance awards are given to
        suppliers in recognition of outstanding achievements and
        support of the Company's electronics manufacturing services
        (EMS) goals. This marks the second year in a row IDT has
        received this accolade.

    --  The Company extended its technology leadership by unveiling
        details of its next generation network search engine (NSE)
        architecture. With its support for a wider interface, this is
        the first NSE architecture truly optimized for IPv6. Products
        based on this architecture will enable new levels of search
        performance and will integrate an error correction code
        feature to address potential soft errors, ensuring data
        integrity and compliance with stringent service level
        agreements.

    --  IDT announced that Fujitsu Limited selected its IDT 75K62134
        NSE to enable the delivery of advanced network services,
        including security, content load balancing and quality of
        service (QoS) within Fujitsu's enterprise-level IPCOM S2200
        network server. More specifically, the IDT NSE offers the
        Fujitsu IPCOM S2200 network server a host of innovative
        features such as the MDL command that enables Fujitsu to
        optimize bandwidth throughput across the LA-1 interface of the
        NSE. The IDT 75K62134 also provides a system-level
        architecture model (SLAM) that gives Fujitsu extensive
        modeling capabilities and offers great technical support on
        its high-end modeling requirements.

    --  Validating its continued support for DDR2 dual in-line memory
        modules (DIMMs), IDT announced that Elpida Memory, Inc.
        selected the IDT DDR2 register and phase-locked loop (PLL)
        chip set for its 512 Mbit-based 2-Gbyte DDR2 registered DIMMs.
        The IDT DDR2 register and PLL chip set buffers clock, address
        and command signals on registered DIMMs for the server
        workstation market. IDT was the first company to introduce a
        complete DDR2 register and PLL chip set in November 2002.

    --  IDT introduced new members of its multi-queue family of
        flow-control management (FCM) ICs. Among the new products is
        the IDT 72P51769, a 4-Mbit device that can access data from a
        single data bus and place the data into any of one to 128
        queues, offering a 400 percent increase in queue partitioning
        when compared to previous offerings. This is an important
        improvement because it allows the device to replace at least
        four products previously required to perform the same
        functions, which translates to a significant savings in
        overall system costs.

    Webcast and Conference Call Information

    Investors can listen to a live or replay Webcast of the Company's
quarterly financial conference call at www.IDT.com. The live Webcast
begins at 2:30 p.m. PDT on October 21, 2004. The Webcast replay will
be available after 5 p.m. PDT on October 21, 2004. A taped telephone
replay of the conference call will be available on October 21, 2004
beginning at 6 p.m. PDT by calling 800-475-6701 or 320-365-3844 and
will be accessible until 11 p.m. PDT on October 28, 2004.

    Investor Information

    IDT stock is traded on the Nasdaq Stock Market(R) under the symbol
"IDTI." The Company is included in the S&P 1000, which is a
combination of the S&P MidCap 400 and S&P SmallCap 600 Indices, and is
also part of the S&P SuperComposite 1500, which combines the S&P 500,
MidCap 400, and SmallCap 600. Additional information about IDT is
accessible at www.IDT.com.

    About IDT

    IDT is a global leader in preemptive semiconductor solutions that
accelerate packet processing for advanced network services. IDT serves
communications equipment vendors by applying its advanced hardware and
software technologies to create flexible, highly integrated solutions
that enhance the functionality and processing of network equipment.
IDT accelerates intelligent packet processing with products such as
switching solutions, network search engines (NSEs), programmable
content inspection engines (CIEs), flow-control management (FCM) ICs
and its family of Interprise(TM) integrated communications processors.
The portfolio also comprises products optimized for communications
applications, including telecom products, FIFOs, multi-ports, and
timing solutions. In addition, the product mix includes
high-performance digital logic and high-speed SRAMs to meet the
requirements of leading communications companies.
    Headquartered in Santa Clara, Calif., the Company employs
approximately 3,200 people worldwide and has a wafer manufacturing
facility in Oregon, and test and assembly facilities in the
Philippines and Malaysia.

    Investors are cautioned that forward-looking statements in this
release involve a number of risks and uncertainties that could cause
actual results to differ materially from current expectations. Risks
include, but are not limited to, global business and economic
conditions, product demand, manufacturing capacity and costs,
inventory management, competition, pricing, patent and other
intellectual property rights of third parties, timely development and
supply of new products and manufacturing processes, dependence on one
or more customers for a significant portion of sales, successful
integration of acquired businesses and technology, availability of
capital, cash flow and other risk factors detailed in the Company's
Securities and Exchange Commission filings. We urge investors to
review in detail the risks and uncertainties in the Company's
Securities and Exchange Commission filings, including but not limited
to the Annual Report on Form 10-K for the year ended March 28, 2004,
and the Quarterly Report on Form 10-Q for the quarter ended June 27,
2004.

    IDT, Interprise and the IDT logo are trademarks of Integrated
Device Technology, Inc. All other brands, product names and marks are
or may be trademarks or registered trademarks used to identify
products or services of their respective owners.


                  INTEGRATED DEVICE TECHNOLOGY, INC.
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                             (Unaudited)
(In thousands, except per share data)


                           Three Months Ended       Six Months Ended
- ----------------------------------------------------------------------
                       Sep. 26, Jun. 27,  Sep. 28, Sep. 26,  Sep. 28,
                        2004      2004     2003      2004      2003
                       -------- --------- -------- --------- ---------

Revenues               $96,671  $101,307  $80,777  $197,978  $163,822

Cost of revenues        48,247    48,361   42,201    96,608    90,925

Asset Impairment        (1,585)     (209)       -    (1,794)        -
                       -------- --------- -------- --------- ---------


Gross profit            50,009    53,155   38,576   103,164    72,897
                       -------- --------- -------- --------- ---------

Operating expenses:

  Research and
   development          25,449    26,001   25,716    51,450    51,082

  Selling, general and
   administrative       17,801    19,387   18,320    37,188    36,645

  Acquired in-process
   research and
   development               -     1,736      264     1,736       264
                       -------- --------- -------- --------- ---------

Total operating
 expenses               43,250    47,124   44,300    90,374    87,991
                       -------- --------- -------- --------- ---------

Operating income
 (loss)                  6,759     6,031   (5,724)   12,790   (15,094)

Interest expense           (26)      (47)    (118)      (73)     (210)

Gain (loss) on equity
 investments                 -   (12,831)   3,151   (12,831)    3,151

Interest income and
 other, net              2,824     2,505    3,142     5,329     7,366
                       -------- --------- -------- --------- ---------

Income (loss) before
 income taxes            9,557    (4,342)     451     5,215    (4,787)

Provision (benefit)
 for income taxes          704       705     (699)    1,409    (1,185)
                       -------- --------- -------- --------- ---------

Net income (loss)       $8,853   $(5,047)  $1,150    $3,806   $(3,602)
                       ======== ========= ======== ========= =========


Net income (loss) per
 share:

Basic                    $0.08    $(0.05)   $0.01     $0.04    $(0.03)

Diluted                  $0.08    $(0.05)   $0.01     $0.03    $(0.03)

Weighted average
 shares:

Basic                  106,144   106,026  104,210   106,085   104,041

Diluted                107,661   106,026  106,148   109,117   104,041



                  INTEGRATED DEVICE TECHNOLOGY, INC.
                         NON-GAAP ADJUSTMENTS
                             (Unaudited)
(In thousands)

                              Three Months Ended     Six Months Ended
- ----------------------------------------------------------------------
                          Sep. 26, Jun. 27, Sep. 28, Sep. 26, Sep. 28,
                           2004     2004     2003     2004     2003
                          -------- -------- -------- -------- --------


Net income (loss)          $8,853  $(5,047)  $1,150   $3,806  $(3,602)
                          -------- -------- -------- -------- --------

Non-GAAP adjustments:

Cost of goods sold:

  Restructuring charges
   (1)                          -       25        -       25       15

  Asset Impairment (2)     (1,585)    (209)       -   (1,794)       -

  Plant closure costs (2)      44      195      280      239      562

  Amortization of
   acquisition-related
   intangibles (3)          1,313    1,014      357    2,327      591

  Patent Settlement             -      (18)       -      (18)       -

Operating expenses:

  Acquired IPR&D (3)            -    1,736      264    1,736      264

  Plant closure costs (2)       -        -        -        -       36

  Restructuring charges
   (1)                          -      652      752      652    1,293

  Amortization of
   acquisition-related
   intangibles (3)            364      538      492      902      936

  Acquisition related
   costs (4)                  494      592        -    1,086        -

(Gain) Loss on equity
 investments (5)                -   12,831   (3,151)  12,831   (3,151)

Other income (6)                -        -     (180)       -     (902)

Taxes (6)                      18      (28)  (1,081)     (10)  (1,930)
                          -------- -------- -------- -------- --------

Total Non-GAAP
 adjustments                  648   17,328   (2,267)  17,976   (2,286)
                          -------- -------- -------- -------- --------

Non-GAAP net income
 (loss)                    $9,501  $12,281  $(1,117) $21,782  $(5,888)
                          ======== ======== ======== ======== ========

(1) Consists of costs for restructuring actions announced in fiscal
    years 2004-2005. Q1 2005 and Q2 2004 primarily consists of
    severance. YTD FY 2004 also includes facility exit costs.

(2) Consists of costs associated with the closure of our Salinas plant
    and gains realized on the sale of related assets held for sale.

(3) Consists of costs related to our acquisition of Zettacom in Q1
    2005, TCAM3 acquisition from IBM in Q2 2004 and acquisitions of
    Newave and Solidum in Q1 2002 and Q3 2003, respectively.
    Newave-related costs include stock-based compensation and
    amortization of intangible assets. Zettacom, TCAM3 and
    Solidum-related costs include only amortization of intangible
    assets.

(4) Consists primarily of transitional costs incurred in connection
    with the acquisition of Zettacom, such as retention earned by
    former Zettacom employees, rent payments for the former Zettacom
    facility, and transitional services provided.

(5) Consists of an impairment charge related to our investment in
    NetLogic in Q1 2005 and a gain on the sale of our investment in
    PMC Sierra in Q2 2004.

(6) In Q1 and Q2 2004, we received non-recurring federal and state tax
    refunds for tax years prior to 1996 plus interest.



                  INTEGRATED DEVICE TECHNOLOGY, INC.
                  NON-GAAP STATEMENTS OF OPERATIONS
                             (Unaudited)
(In thousands, except per share data)

                           Three Months Ended       Six Months Ended
- ----------------------------------------------------------------------
                       Sep. 26, Jun. 27,  Sep. 28, Sep. 26,  Sep. 28,
                        2004      2004     2003      2004      2003
                       -------- --------- -------- --------- ---------

Revenues               $96,671  $101,307  $80,777  $197,978  $163,822

Cost of Revenues        46,890    47,145   41,564    94,035    89,757
                       -------- --------- -------- --------- ---------


Gross profit            49,781    54,162   39,213   103,943    74,065
                       -------- --------- -------- --------- ---------

Operating expenses:

  Research and
   development          24,775    24,950   25,261    49,725    49,853

  Selling, general and
    administrative      17,617    18,656   17,531    36,273    35,609
                       -------- --------- -------- --------- ---------

Total operating
 expenses               42,392    43,606   42,792    85,998    85,462
                       -------- --------- -------- --------- ---------

Operating income
 (loss)                  7,389    10,556   (3,579)   17,945   (11,397)

Interest expense           (26)      (47)    (118)      (73)     (210)

Interest income and
 other, net              2,824     2,505    2,962     5,329     6,464
                       -------- --------- -------- --------- ---------

Income (loss) before
 income taxes           10,187    13,014     (735)   23,201    (5,143)

Provision for income
 taxes                     686       733      382     1,419       745
                       -------- --------- -------- --------- ---------

Net income (loss)       $9,501   $12,281  $(1,117)  $21,782   $(5,888)
                       ======== ========= ======== ========= =========


Net income (loss) per
 share:

Diluted                  $0.09     $0.11   $(0.01)    $0.20    $(0.06)

Weighted average
 shares:

Diluted                107,661   110,344  104,210   109,117   104,041

Non-GAAP results exclude acquisition-related charges, and other
expenses and benefits that management believes are not directly
related to our ongoing operations. These non-GAAP results are
consistent with another way management internally analyzes IDT's
results and may be useful; however, non-GAAP results are not in
accordance with GAAP and may not be comparable to non-GAAP information
provided by other companies. Non-GAAP information should be considered
a supplement to, and not a substitute for, financial statements
prepared in accordance with GAAP.



                  INTEGRATED DEVICE TECHNOLOGY, INC.
                CONDENSED CONSOLIDATED BALANCE SHEETS
                             (Unaudited)

                                                  Sep. 26,   Mar. 28,
(In thousands)                                      2004       2004
- ----------------------------------------------------------------------

ASSETS

Current assets:

Cash and cash equivalents                         $265,398   $223,360

Short-term investments                             334,380    384,854

Accounts receivable, net                            56,908     53,091

Inventories                                         44,136     32,745

Prepaids and other current assets                    9,897     12,101
                                                  ---------  ---------

Total current assets                               710,719    706,151

Property, plant and equipment, net                 109,765    108,424

Goodwill and other intangibles                      87,663     52,784

Other assets                                         8,823     38,194
                                                  ---------  ---------

TOTAL ASSETS                                      $916,970   $905,553
                                                  =========  =========


LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

Accounts payable                                   $21,758    $20,190

Accrued compensation and related expenses           14,769     11,560

Deferred income on shipments to distributors        24,891     21,411

Income taxes payable                                33,089     33,267

Other accrued liabilities                           18,055     19,250
                                                  ---------  ---------

Total current liabilities                          112,562    105,678


Long term liabilities                               13,169     15,651
                                                  ---------  ---------

Total liabilities                                  125,731    121,329


Stockholders' equity                               791,239    784,224
                                                  ---------  ---------

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY        $916,970   $905,553
                                                  =========  =========




    CONTACT: IDT
             Dawn Morse, 408-654-6515 (Financial)
             (Investor Relations)
             dawn.morse@idt.com
             Jim Rey, 408-492-8494 (Press)
             (Corporate Communications)
             jim.rey@idt.com
              or
             Porter Novelli
             Patty Ladegaard, 408-369-1500 (Press)
             patty.ladegaard@porternovelli.com