(EMAILWIRE.COM, July 31, 2006 ) Hong Kong -– SigmaTel, a leader in mixed-signal, multimedia semiconductors, announced its new system on chip (SoC) solution for the personal photo printer market. The STDC8080 SOC solution offers inkjet and dye-sublimation photo printer manufacturers a complete controller solution with a low bill of materials cost. The STDC8080 and its associated firmware controls all of the major photo printer product functions while at the same time producing photographic quality prints.

SigmaTel's digital imaging solutions (SoC, Firmware, & Software) provide complete solutions enabling consumer electronics and printer companies to develop innovative products. Through patented semiconductor solutions, firmware and software, SigmaTel's high level of integration and support allow customers to develop low cost products offering very high quality prints.

"SigmaTel's complete digital imaging solutions enable us to deliver high performance products quickly at the lowest possible cost – a characteristic that leads to standard-setting high volume designs for our customers," said Peter Morris, vice president of the SigmaTel Imaging Systems Group.

Today, many digital color photographs are being conveniently produced at home with photo printers and All-In-Ones. For many years, SigmaTel has been producing the semiconductor and software/firmware solutions that make these types of home printing products possible. The STDC8080 is SigmaTel's latest controller chip in a long line of successful printing and All-In-One (AIO) controller solutions. This is SigmaTel's first chip that is being produced to focus exclusively on the printer-only market, as opposed to the All-In-One printer market where products scan and copy as well as print.
The STDC8080 supports both standalone photo printing (without a PC
connected) and PC-connected photo printing. Its printing interface is very flexible and it supports both inkjet and dye-sublimation (dye-sub) technology based printers.

The STDC8080's major benefits include:
• Lower bill of materials (BOM) cost due to its high levels of integration

• Provides photographic quality prints
• Connects and prints directly to many of the inkjet and dye-sub printheads on the market • Supports advanced photo printing features such as 6-colour printing,
memory cards, LCD graphic displays, IrDa, Bluetooth, WiFi, and TV
output interfaces
• Speeds time-to-market with proven in-production firmware offered as a Software Development Kit

The STDC8080 contains a high-performance, configurable Hardware Image Processor and an advanced 32-bit RISC processor. Its printer interface can connect directly to both Inkjet and Dye-Sub printing technologies, and it even supports on-chip Thermal History Control (THC) for Dye-Sub printers.
It contains an integrated LCD Graphic Controller, Memory Card Controller, USB High-Speed Device port for optional PC connections, and multiple USB Host High-Speed ports. The USB Host ports support interfaces to digital PictBridge cameras, WiFi devices, Bluetooth devices, USB FLASH drives, and other types of devices.

For more information on SigmaTel, please visit www.sigmatel.com.

About SigmaTel:
SigmaTel, Inc. a fabless semiconductor company headquartered in Austin, Texas, designs, develops, and markets proprietary, analog intensive, mixed-signal ICs for a variety of digital multimedia products in the consumer electronics and computing markets, including portable compressed audio players, such as MP3 players, notebook and desktop PCs, digital video cameras, multi-function peripheral products, digital televisions, and set-top boxes. SigmaTel provides complete, system-level solutions that include highly-integrated ICs, customizable firmware and software, software development tools, reference designs, and applications support. The Company's focus is on providing system-level solutions that enable customers to rapidly introduce and offer electronic products that are small, light-weight, power-efficient, reliable, and cost-effective.

SigmaTel is ISO 9001:2000 certified and is committed to providing customers with high performance, quality products along with superior customer service.
Cautionary Language:

This press release contains forward-looking statements based on current SigmaTel expectations. The words "expect," "will," "should," "would,"
"anticipate," "project," "outlook," "believe," "intend," and similar phrases as they relate to SigmaTel or future events are intended to identify such forward-looking statements. These forward-looking statements reflect the current views and assumptions of SigmaTel, but are subject to various risks and uncertainties that could cause actual results to differ materially from expectations. A number of important factors could cause actual results to differ materially from those in the forward-looking statements, and there will be events in the future that SigmaTel is not able to accurately predict or control. For a discussion of factors that could impact SigmaTel's financial results and cause actual results to differ materially from those in the forward-looking statements, please refer to recent SigmaTel filings with the SEC, particularly the form 10-K that was filed on February 24, 2006, and the form 10-Q filed on May 10, 2006.
SigmaTel is a registered trademark of SigmaTel, Inc. All other products and brand names as they appear in this release are trademarks or registered trademarks of their respective holders. All specifications may be changed without notice.

Issued on behalf of SigmaTel
by Euan Barty Associates
For further information please contact:

Mabel Fung (SigmaTel): (852) 2175 5225
(email: mfung@sigmatel.com)
Brian Paterson (EBA): (852) 2122 9762
(email: brian@eba.com.hk)

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