EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated January 28, 2004, except for Note 14, as to which the date is February 19, 2004 relating to the financial statements and financial statement schedule, which appears in LSI Logic Corporation’s Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

San Jose, California
December 16, 2004