Catalyst Semiconductor Schedules News Release/Conference Call to Discu

    Business Editors/High-Tech Writers

    SUNNYVALE, Calif.--(BUSINESS WIRE)--Feb. 15, 2005--Catalyst Semiconductor (Nasdaq:CATS) announced today that it will report its fiscal third quarter 2005 financial results following the close of regular trading on Thursday, February 24, 2005. The news release will be followed by a conference call available to all interested parties beginning at 2:00 p.m. Pacific Time. A copy of the news release will be available on the company's web site www.catalyst-semiconductor.com or by calling Joan Vargas of Catalyst Semiconductor at (408) 542-1051.

The Catalyst Conference Call may be accessed via:

Telephone: Dial 877/754-9851 before the start of the call at 2:00 p.m. PT/5:00 p.m. ET. International callers dial 706/643-1107. Note: If the number of lines allocated to the call is exhausted, the web cast or replay should be utilized.

Internet Simulcast: www.catalyst-semiconductor.com or www.fulldisclosure.com Please allow 15 minutes prior to the call to visit these sites to download and install any necessary audio software.

Replay: The teleconference will be rebroadcast until midnight Pacific Time, Friday, March 4, 2005 and can be accessed by:

Dialing 800-642-1687 (international callers dial 706-645-9291) and entering Conference ID #3992752 Or Clicking on the "Quarterly Conference Call" icon on the company's web site.

    About Catalyst Semiconductor

    Founded in 1985, Catalyst Semiconductor, Inc. is headquartered in Sunnyvale, Calif. The Company's products include nonvolatile memories such as Serial and Parallel EEPROMs with I2C, SPI and Microwire interfaces, Flash Memories and NVRAM; as well as analog/mixed-signal products such as Digitally Programmable Potentiometers (DPP(TM)), Microcontroller Supervisory circuits, White LED Drivers, and other mixed signal products. Catalyst products are used in telecommunications, networking systems, computation, automotive, industrial and consumer markets. Typical applications include LCD displays, automotive instrumentation, optical networks, modems, wireless LANs, network cards, DIMM modules, cellular telephones, digital satellite box receivers, set-top boxes and Internet routers. Catalyst's Quality Management System is ISO 9001:2000 certified. For additional information about Catalyst Semiconductor, visit our web site at www.catalyst-semiconductor.com.

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CONTACT: Catalyst Semiconductor Joan Vargas, 408-542-1051

KEYWORD: CALIFORNIA INDUSTRY KEYWORD: HARDWARE TELECOMMUNICATIONS NETWORKING CONFERENCE CALLS SOURCE: Catalyst Semiconductor

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