NetLogic Microsystems Announces a Two-for-One Stock Split

Mountain View, Calif. – Feb. 17, 2010 – NetLogic Microsystems, Inc. [NASDAQ: NETL], a worldwide leader in high-performance intelligent semiconductor solutions for next-generation Internet networks, today announced that its Board of Directors has approved a two-for-one stock split of its outstanding common stock.

The stock split will be accomplished through a 100 percent stock dividend, providing stockholders with one additional share of common stock for every share they hold. The dividend is payable on March 20, 2010 to stockholders of record as of March 5, 2010. The company had approximately 28,972,000 shares outstanding at February 12, 2010.

“Following our record 2009 financial results as well as the continued positive adoption of our knowledge-based processors, multi-core processors and physical layer solutions, we believe it is in the best interest of our stockholders at this time to declare a stock split,” said Ron Jankov, president and CEO. “This stock split should further enhance the liquidity of our shares.”

About NetLogic Microsystems, Inc.
  NetLogic Microsystems, Inc. (NASDAQ: NETL) is a worldwide leader in high-performance intelligent semiconductor solutions that are powering next-generation Internet networks. NetLogic Microsystems’ best-in-class products perform highly differentiated tasks of accelerating complex network traffic to significantly enhance the performance and functionality of advanced 3G/4G mobile wireless infrastructure, data center, enterprise, metro Ethernet, edge and core infrastructure networks. NetLogic Microsystems’ market-leading product portfolio includes high-performance multi-core processors, knowledge-based processors, content processors, network search engines, ultra low-power embedded processors and high-speed 10/40/100 Gigabit Ethernet PHY solutions. These products are designed into high-performance systems such as switches, routers, wireless base stations, security appliances, networked storage appliances, service gateways and connected media devices offered by leading original equipment manufacturers (OEMs). NetLogic Microsystems is headquartered in Mountain View, California, and has offices and design centers throughout North America, Asia and Europe. For more information about products offered by NetLogic Microsystems, call +1-650-961-6676 or visit the NetLogic Microsystems Web site at http://www.netlogicmicro.com.

NetLogic Microsystems, the NetLogic Microsystems logo and XLP are trademarks of NetLogic Microsystems, Inc. Alchemy, Au1300, XLR and XLS are registered trademarks of NetLogic Microsystems, Inc. All other trademarks are the properties of their respective owners.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding NetLogic Microsystems’ business which are not historical facts may be “forward-looking statements” that involve risks and uncertainties. Forward-looking statements are based on certain assumptions and expectations of future events that are subject to risks and uncertainties. Actual results and trends may differ materially from historical results or those projected in any such forward-looking statements depending on a variety of factors. These factors include, but are not limited to, customer acceptance and demand for our products, the volume of sales to our principal product customers, the timing of our receipt of customer orders during the quarter, manufacturing yields for our products, the timing of manufacture and delivery of product by our foundry suppliers, potential warranty claims and product defects, the length of our sales cycles, our average selling prices, our ability to successfully develop and sell new products, the effects of any business acquisitions that we might make, the strength of the OEM networking equipment market and the cyclical nature of that market and the semiconductor industry. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see “Risk Factors” in the Company’s reports on Forms 10-K and 10-Q, as well as other reports that NetLogic Microsystems files from time to time with the Securities and Exchange Commission which are available at http://www.sec.gov. All forward-looking statements are qualified in their entirety by this cautionary statement, and NetLogic Microsystems undertakes no obligation to update publicly any forward-looking statement for any reason, except as required by law, even as new information becomes available or other events occur in the future.