Catalyst Semiconductor CEO Gelu Voicu to Speak at A.G. Edwards' 2nd Annual Emerging Growth Conference September 18, 2007, New York City

Catalyst Semiconductor, Inc. (NASDAQ:CATS) a supplier of analog, mixed-signal and non-volatile memory semiconductors, today announced that the company’s president and chief executive officer, Gelu Voicu, and chief financial officer and vice president of finance and administration, David Eichler, will discuss the company’s progress at A.G. Edwards’ 2nd Annual Emerging Growth Conference at the New York Palace Hotel on Tuesday, September 18, at 2:15 p.m. (Eastern). Interested parties may access the presentation slides on the Catalyst Semiconductor website for 30 days after the event at: www.catsemi.com. Conference Details: http://capitalmarkets.agedwards.com/capitalmarkets/events.html. About Catalyst Semiconductor Headquartered in Santa Clara, California, Catalyst Semiconductor designs and markets analog, mixed-signal and non-volatile memory products, including Digitally Programmable Potentiometers (DPP™), white and color LED drivers, DC/DC converters, LDO regulators, voltage supervisors, I/O expanders, parallel EEPROMs, Flash and NVRAM. Many of Catalyst’s products incorporate the Company’s Configurable Analog™ technology to deliver a new level of design flexibility, lower power and smaller die size. Catalyst products are used in telecommunications, networking systems, computation, automotive, industrial and consumer markets. Typical applications include LCD displays, automotive instrumentation, optical networks, printers, modems, wireless LANs, network cards, DIMM modules, cellular telephones, navigation systems, digital satellite box receivers, set-top boxes and Internet routers. www.catsemi.com. Editor Notes: 1) Trademark notices: DPP and Configurable Analog are trademarks of Catalyst Semiconductor, Inc.