Catalyst Semiconductor Expands Supervisor Family With Three New Industry-Standard Devices.

CAT823, CAT824 and CAT825 Pin-for-Pin Compatible With MAX823, MAX824, MAX825

SANTA CLARA, Calif. -- Catalyst Semiconductor, Inc. (NASDAQ:CATS) a supplier of analog, mixed-signal and non-volatile memory semiconductors, continues the rapid expansion of its supervisor product line with the addition of three new devices which provide system processor power supply monitoring and reset functions. The new CAT823, CAT824 and CAT825 voltage supervisors are available in a choice of seven standard threshold levels: 4.63V, 4.38V, 3.08V, 2.93V, 2.63V, 2.32V and 2.19V.

In addition to an active-low reset output included on all three devices, the CAT823 also offers a manual reset and a watchdog input, while the CAT824 provides an additional active-high reset and a watchdog input. The CAT825 features active-low, active-high and manual reset functions.

The CAT823, CAT824 and CAT825 supervisors come in 5-lead TSOT-23 and 5-lead SC-70 packages and are pin-for-pin compatible with MAX823, MAX824 and MAX825 devices. Unlike other vendors, Catalyst offers 2.19V and 2.32V thresholds in both TSOT-23 and SC-70 packages.

Product Features

    --  Functions
        CAT823: active-low and manual reset; watchdog
        CAT824: active-low and active-high reset; watchdog
        CAT825: active-low, active-high and manual reset

    --  Pin-for-pin compatible with MAX823, MAX824, MAX825 supervisors

    --  7 Reset thresholds: 4.63V, 4.38V, 3.08V, 2.93V, 2.63V, 2.32V
        and 2.19V

    --  Accurate under-voltage system monitoring

    --  Packaging: 5-lead TSOT-23 and 5-lead SC-70

Price and Availability

The CAT823, CAT824 and CAT825 supervisors are priced at $0.48 each in 10,000 piece quantities. Samples of the CAT823 and CAT825 are available now; samples of the CAT824 will be available soon. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.

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[TM]), 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[TM] 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.

Forward Looking Statements

Statements in this press release may be forward looking statements that are subject to risks and uncertainties, including, but not limited to, references to product availability and lead times of Catalyst Semiconductor's voltage supervisor products. Many factors can affect product availability, lead times, prices and margins, including interruptions in our manufacturing processes and those of our foundries and vendors, unpredictable customer demand, and the cyclical nature of the semiconductor industry. Additional information about 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 the Form 10-K for the year ended April 29, 2007 and Form 10-Q.

Editor Notes:

1) Trademark notices: DPP and Configurable Analog are trademarks of Catalyst Semiconductor, Inc.