UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of report (date of earliest event reported): August 25, 2006 (August 25, 2006)

SigmaTel, Inc.

(Exact name of registrant as specified in its charter)

Delaware

000-50391

74-2691412

(State or other jurisdiction of

incorporation)

(Commission File No.)

(I.R.S. Employer

Identification No.)

1601 S. MoPac Expressway

Suite 100

Austin, Texas 78746

(Address of principal executive offices)

Registrant’s telephone number, including area code:

(512) 381-3700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01

Other Events.

On August 25, 2006, SigmaTel, Inc. (“SigmaTel”) will post a revised copy of its Corporate Presentation on the Investor Relations portion of its website at www.sigmatel.com. A copy of the presentation is furnished herewith as Exhibit 99.1.

The information in exhibit 99.1 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01

Financial Statements and Exhibits.

(c)

Exhibits.


Exhibit No.		Description

99.1		SigmaTel, Inc. Corporate Presentation dated August 25, 2006

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 25, 2006


SIGMATEL, INC.

By:		/S/ Ross A. Goolsby
		Ross A. Goolsby
		Vice President of Finance,
		Chief Financial Officer and
		Secretary

EXHIBIT INDEX


EXHIBIT NO.

99.1		SigmaTel, Inc. Corporate Presentation dated August 25, 2006

SIGMATEL INC 8-K