CATALYST SEMICONDUCTOR APPLICATION NOTES FEATURE DIGITALLY PROGRAMMABLE POTENTIOMETERS

Three application notes describe the benefits and applications of Digitally Programmable Potentiometers.

FOR IMMEDIATE RELEASE   

CATALYST SEMICONDUCTOR APPLICATION NOTES FEATURE
DIGITALLY PROGRAMMABLE POTENTIOMETERS

Sunnyvale, Calif. (June 24, 2002) -- Catalyst Semiconductor (Nasdaq: CATS) today
announced three application notes that describe the benefits and application of
its Digitally Programmable Potentiometer (DPP(TM)) integrated circuit products
and technology.

AN9: Minimizing the Temperature Dependence of Digitally Programmable Potentiometers
AN8: Everything You Wanted to Know About Digitally Programmable Potentiometers
AN7: Programmable Analog Functions

Application Note 8 (AN8) describes the advantages DPPs have over mechanical
potentiometers. Application Notes 7 (AN7) and 9 (AN9) examine real-world circuit
applications and show how DPP technology makes traditional analog circuits
digitally programmable. DPP application notes can be downloaded at
www.catalyst semiconductor.com or may be requested by sending an email
to DPPApNotes@catsemi.com.

About Catalyst Semiconductor
Founded in 1985, Catalyst Semiconductor, Inc. is headquartered in Sunnyvale,
California. The Company designs and markets a broad range of programmable
products including Flash Memories, Serial and Parallel EEPROMs with I2C,
SPI and Microwire interfaces, NVRAM, Digitally Programmable Potentiometers (DPP(TM)),
Microcontroller Supervisory circuits and other programmable Mixed Signal products.
Catalyst products are used in telecommunications, networking systems, computation,
automotive, industrial and consumer markets. Typical applications include optical
networks, modems, wireless LANs, network cards, PC BIOS, DIMM modules, cellular
telephones, digital satellite box receivers, set-top boxes and Internet routers.
Catalyst's Quality Management System is ISO 9001 certified. For additional
information about Catalyst Semiconductor, please visit our web site
at www.catalyst semiconductor.com.

Except for those statements that report the Company's historical results,
the statements being made are forward-looking statements. Actual results
could differ materially from those projected in the forward-looking statements.
Additional information concerning factors that could cause actual results to
differ materially from those in the forward-looking statements is contained
under the heading "Certain Factors That May Affect the Company's Future Results
of Operations" listed from time to time in Catalyst's SEC reports including
but not limited to the report on Form 10-K for the year ended April 30, 2001
and Form 10-Q for the quarters ended July 31, 2001, October 31, 2001 and
January 21, 2002.

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Editor and Reader Contact

David Gillooly
Director of Marketing
Telephone: 408.542.1080
Email: david.gillooly@catsemi.com

Editor Note: DPP and DPPs are trademarks of Catalyst Semiconductor. SPI is
a trademark of Motorola, Inc. I2C is a trademark of Philips. Microwire is
a trademark of National Semiconductor.

In I2C the 2 is superscript.

Visit www.catalyst-semiconductor.com/editors for electronic images.

   
Catalyst Semiconductor, Inc.
1250 Borregas Avenue
Sunnyvale, CA 94089
Main: 408.542.1000
Fax: 408.542.1200
www.catalyst-semiconductor.com