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Techwell Demonstrates Advanced Line of Security Surveillance ICs at the 2007 International Security Show, ISC West March 28-30th

Techwell's TW28xx line offers the most advanced 4-channel video and audio decoders and multiplexers available on the market today

SAN JOSE, Calif. (March 26, 2007) - Techwell, Inc. (Nasdaq:TWLL), a leading designer of mixed signal video semiconductor solutions for the security surveillance, automotive, and consumer electronics markets, today announced it will demonstrate their broad line of high performance TW28xx Security Surveillance processors at the company's 2007 ISC West booth #6133 located in the Las Vegas Sands Expo and Convention Center. Techwell has developed a number of advanced solutions for the security surveillance market in response to the growing demand for surveillance related applications including digital video recorders, PCI DVR cards, network video recorders, quad/multiplexers, and rear car vision systems. Designed specifically for security surveillance applications, all of the TW28xx processors at ISC West have integrated 4 video decoders in one chip, incorporate DVR audio, multiplexing, DSP, display, compression, motion detection, horizontal/vertical scaling algorithms and can directly support a variety of applications. Companies designing and manufacturing security surveillance applications will not want to miss the opportunity to see Techwell's newest high performance, feature rich and cost effective ICs.

At our booth #6133 in the Security Surveillance Pavilion, we will demonstrate:

New Product Introductions
New Evaluation Cards
New End to End Turn Key Solutions
New Customers' Products and Reference Designs developed by our partners

According to Mark Kirstein VP Multimedia Content & Services at Market Research Firm iSuppli "The equipment market for surveillance cameras, embedded DVRs, and IP video servers will grow to nearly $12 billion by 2011. Semiconductors associated with these segments will account for about $2 billion in 2011, including DSPs, interface logic, image sensors and memory. Techwell has found considerable success with their front-end solutions for multi-channel Digital Video Recorders and Quad/Multiplexers. This expertise has helped to position the company as a key semiconductor player for these high-growth security surveillance applications."

"By pairing our unique expertise in advanced video decoders and video controller solutions, we've created a complete front-end solution for security surveillance applications. Through continued R&D investment and collaboration with partners and customers, we are working to develop some of the most highly integrated and feature-rich security surveillance semiconductor solutions in the market today. In addition, we are very proud of our high level of software and development support which helps customers quickly adapt our solutions in the rapidly growing surveillance market." said Feng Kuo, Ph.D., Chief Technical Officer

Products Featured TW2815/TW2816 4-in-1 NTSC/PAL

Video Decoder with Audio ADC & Mux
Includes 4 high quality NTSC/PAL video decoders that convert analog composite video signal to digital component YCbCr data. It contains 4 10-bit ADC, proprietary clamp, gain controllers and utilizes a 4H comb filter for separating luminance & chrominance to reduce cross noise artifacts. The TW2815 also includes an audio CODEC which has four audio Analog-to-Digital converters and one Digital-to-Analog converter.

TW2835/TW2836 4-Channel Video/Audio Controller The TW2835 has four high quality NTSC/PAL video decoders, dual color display controllers and dual video encoders. The TW2835 contains four built-in analog anti-aliasing filters, four 10bit Analog-to-Digital converters, and proprietary digital gain/clamp controller, high quality Y/C separator to reduce cross-noise and high performance free scaler.

TW2700 4 Channel MJPEG CODEC with Integrated Mux A real time 4 channel video compression controller that can compress and decompress 4 full size video data streams simultaneously. It contains an internal RISC processor that can be used for audio compression, and IP streaming. Together with the TW2815 4 channel video decoders and audio codecs, the TW2700 is a complete end-to-end MJPEG DVR solution that can scale from 4 channels up to 16 channels.

TW6802 PC DVR Card Solution PCI Video Decoder with Audio Support and Optional TS Input Support. NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM support with automatic format detection. Software selectable analog inputs allows any of the following combinations, e.g. 4 CVBS or (3 CVBS and 1 Y/C ). Two 10-bit ADCs and analog clamping circuit for CVBS and S-Video YC input selection.

Pricing and Availability Please contact a local Techwell sales representative for evaluation boards, samples and pricing. sales@techwellinc.com

Documentation
TW2835 Brochure
TW2836 Brochure
TW2815 Brochure
TW2816 Brochure
TW2700 Brochure

About Techwell
Techwell is a semiconductor company that designs, markets and sells mixed signal integrated circuits for multiple video applications in the security surveillance, automotive and consumer electronics markets. Techwell designs both general purpose and application specific products that enable the conversion of analog video signals to digital form and perform advanced digital video processing to facilitate the display, storage and transport of video content. Headquartered in San Jose, CA, Techwell currently has over 90 employees in the U.S., Korea, Taiwan, China and Japan. Please visit www.techwellinc.com for more information.

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This press release and related conference call contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements may be identified by terminology such as may, will, could, should, anticipate and expect and the negative of these terms or other similar expressions. These are statements that relate to future events and include, but are not limited to the success of the TW2700 and TW8806, as well as the migration by future customers to Techwell’s next generation video decoders. These are statements that relate to future events and include, but are not limited to Techwell’s belief that demand for its products will continue to grow in the second half of 2007 and its ability to better address customer requirements, leverage technology capabilities and achieve greater market share, statements relating to future opportunities, success in digital video markets, continued growth as a public company and its anticipated revenues and operating expenses for the third quarter of 2007. Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those discussed in these forward-looking statements. These risks and uncertainties include, but are not limited to: Techwell’s dependence on increased demand for digital video applications for the consumer, security surveillance and automotive markets, the potential decline in average selling prices for Techwell’s products, competition, dependence on key and highly skilled personnel, the ability to develop new products and enhance existing products, as well as other risks detailed from time to time in its SEC filings, including those described in the Risk Factors section in Registration Statement on Form S-1. Statements included in this release are based upon information known to Techwell as of the date of this release, and Techwell assumes no obligation to update information contained in this press release.