AMCC Showcases a Complete Portfolio of SFP+ PHYs at OFC 2007.

Demonstrations Include Both Fiber and Copper Links for 10 GbE and SONET/SDH Applications

ANAHEIM, Calif. -- Applied Micro Circuits Corporation (NASDAQ:AMCC), the leading supplier in 10 Gbps Ethernet PHY ICs, announced today that it will demonstrate its comprehensive product line for the emerging SFP+ pluggable optical module standard at the OFC/NFOEC Technical Conference and Exposition in Anaheim, California. The demonstrations will take place in AMCC booth #1007 as well as in the booths of various AMCC SFP+ optical module partners.

The demonstrations showcase three AMCC products for SFP+ applications: the QT2035S, the industry's first SFI-to-XAUI PHY with EDC; the QT1215, the industry's first dual XFI-to-SFI PHY with EDC; and the S19252, the world's first SFI-4 to SFI transceiver for SONET/SDH/OTN and Metro-Ethernet applications.

The 10GBASE-LRM demonstration is based on a 10 Gigabit Ethernet switch reference design with Fulcrum Microsystems[R]. The joint reference design combines Fulcrum's FocalPoint[R] FM2224 10-Gigabit Ethernet switch chip with the QT2035S and SFP+ optical modules. The combination of the Fulcrum and AMCC products shows the highest density and highest performance 10GE switching solution available on the market today.

AMCC will also demonstrate a 10 meter copper link using low-cost Infiniband 1x twin-axial cable. The QT2035S's highly sophisticated SFI receiver and transmitter are used to equalize the impairments over this inexpensive medium, providing a more cost-effective and elegant alternative to CX4 cabling for data center and stacking applications. A demonstration of SFP+ 10GBASE-SR optics will also be featured with the QT2035S.

"AMCC provides complete coverage for all SFP+ applications from LAN to Metro to Wide Area Networks," said Mitch Kahn, vice president of marketing, transport products for AMCC. "No other vendor offers the breadth of product line and experience in the SFP+ interface device market."

About AMCC

AMCC is a global leader in network and embedded PowerPC[TM] processing, optical transport and storage solutions. Our products enable the development of converged IP-based networks offering high-speed secure data, high-definition video and high-quality voice for carrier, metropolitan, access and enterprise applications. AMCC provides networking equipment vendors with industry-leading communications processing, Ethernet, SONET and switch fabric solutions. AMCC is also the leading vendor of high-port count SATA RAID controllers enabling low-cost, high-performance, high-capacity storage. AMCC's corporate headquarters are located in Sunnyvale, California. Sales and engineering offices are located throughout the world. For further information regarding AMCC, please visit our web site at http://www.amcc.com.

Forward-Looking Statements

This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by words such as expects, anticipates, plans, believes, estimates, will or words of similar meaning. Such forward-looking statements, including statements relating to the products discussed in this press release, are subject to a number of risks and uncertainties, including the risk that the products may not be successfully or timely developed, completed or manufactured or achieve market acceptance, risks relating to general economic conditions, as well as the risks and uncertainties set forth in the Company's Annual Report on Form 10-K, and in the Company's other SEC filings. As a result of these risks and uncertainties, actual results may differ materially from these forward-looking statements. The forward-looking statements contained in this press release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement, whether as a result of new information, future developments or otherwise.

AMCC IS A REGISTERED TRADEMARK OF APPLIED MICRO CIRCUITS CORPORATION.