July 3, 2008

16-Channel I2C LED Blinker From Catalyst Semiconductor Provides Simple Solution for Flashing and “On/Off” LED Applications

CAT9552 Drives up to 16 LEDs in Parallel, With Programmable "On/ Off" and "Blink" Control Functions

Catalyst Semiconductor, Inc.

Sherry Hill, 408-542-1080

[email protected]

Logo: http://www.catsemi.com

Catalyst Semiconductor, Inc. (NASDAQ:CATS) a supplier of analog, mixed-signal and non-volatile memory semiconductors, has added a 16- channel I2C/SMBus LED driver/blinker to its line of bus products. The CAT9552 drives up to 16 LEDs in either programmable flashing or "on/off" modes. The CAT9552 is ideal for applications including advertising point-of-sale signage with flashing LEDs, and any type of consumer or industrial equipment with "on/off" LED indicators.

The CAT9552 is designed with an internal oscillator and two programmable "on/off" or "blink" rate timers, adjustable from 0.02 to 5.8 seconds. This oscillator and its two timers reduce overall parts count and substantially reduce the I2C bus traffic, which would normally occur if traditional bus expanders were used. An added benefit of the CAT9552 is that I/Os not used for controlling LEDs can be used as general-purpose I/Os (GPIOs).

Product Features

-- 16 open drain outputs drive 25mA each

-- Two programmable "on/off" and "blink" rate timers (adjustable from 0.02 to 5.8 seconds)

-- I/Os can be used as general purpose I/Os

-- Packaging: 24-lead SOIC, TSSOP and 24-pad TQFN (4 x 4mm)

Price and Availability

Pricing for the CAT9552 LED driver/blinker is $1.00 each, in 10,000 piece quantities. Samples are available now. 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, bus expanders, serial and parallel EEPROMs, Flash and NVRAM. Many of Catalyst's products incorporate the Company's Quantum Charge Programmable(TM) technology, to deliver Adaptive Analog(TM) products, which offer a new level of customer flexibility, lower power and smaller die size. Catalyst products are used in telecommunications, computer, automotive, industrial and consumer markets. Typical applications include LCD displays, automotive lighting, optical networks, printers, modems, wireless LANs, network cards, DIMM modules, cellular telephones, navigation systems, set-top boxes and Internet routers. www.catsemi.com.

Forward Looking Statements

Statements in this press release, including but not limited those describing Catalyst Semiconductor's CAT9552 bus product performance, availability and lead times, are forward-looking statements. These statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those in the forward- looking statements. These risks and uncertainties can include factors such as interruptions in our manufacturing processes, delays in our vendors' manufacturing or delivery of raw materials, and volatility in the technology market sector and/or semiconductor industry. Further information on these and other forward-looking statements may be reviewed in our SEC reports under "Certain Factors That May Affect the Company's Future Results of Operations." These SEC reports include, but are not limited to Catalyst's Annual Report on Form 10-K, and Quarterly Reports filed on Form 10-Q. Catalyst disclaims any obligation to update information contained in any forward-looking statement.

Editor Notes:

1) Trademark notices: Adaptive Analog(TM), DPP(TM) and Quantum Charge Programmable(TM) are trademarks of Catalyst Semiconductor, Inc.

2) I2C is a registered trademark of Philips Corporation. Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C bus protocol.

(c) 2008 BUSINESS WIRE. Provided by ProQuest Information and Learning. All rights Reserved.