EXHIBIT 5.1



                                 March 15, 2002



Integrated Silicon Solution, Inc.
2231 Lawson Lane
Santa Clara, CA 95054

        RE:  REGISTRATION STATEMENT ON FORM S-8

Ladies and Gentlemen:

        We have examined the Registration Statement on Form S-8 to be filed by
you with the Securities and Exchange Commission on or about the date hereof (the
"Registration Statement") in connection with the registration under the
Securities Act of 1933, as amended (the "Act"), of 300,000 shares of your Common
Stock issuable under your 1993 Employee Stock Purchase Plan, 1,000,000 shares of
your Common Stock issuable under your Nonstatutory Stock Plan and 162,639 shares
of your Common Stock issuable under the Purple Ray, Inc. 2000 Stock Plan. Such
shares of Common Stock are referred to herein as the "Shares." The 1993 Employee
Stock Purchase Plan, the Nonstatutory Stock Plan and the Purple Ray, Inc. 2000
Stock Plan, collectively, are referred to herein as the "Plans." As your
counsel, we have examined the proceedings taken and are familiar with the
proceedings proposed to be taken by you in connection with the issuance and sale
of the Shares pursuant to the Plans.

        It is our opinion that, upon completion of the actions being taken, or
contemplated by us as your counsel to be taken by you prior to the issuance of
the Shares pursuant to the Registration Statement and the Plans and upon
completion of the actions being taken in order to permit such transactions to be
carried out in accordance with the securities laws of the various states where
required, the Shares will be legally and validly issued, fully-paid and
non-assessable.

        We consent to the use of this opinion as an exhibit to the Registration
Statement, and further consent to the use of our name wherever appearing in the
Registration Statement and any amendments thereto.



                                       Very truly yours,

                                       WILSON SONSINI GOODRICH & ROSATI
                                       Professional Corporation

                                       /s/ Wilson Sonsini Goodrich & Rosati