AMCC Unveils Low-Cost, Low-Power, Security-Enabled PowerPC Processors; 440GRx and 440EPx Processors Ideal for Protecting Networking and Pervasive Applications.

SAN JOSE, Calif. -- At the Spring Processor Forum, Applied Micro Circuits Corp. (AMCC) (NASDAQ:AMCC) will introduce the first low-cost, low-power, security-enabled 400 series PowerPC(R) processors -- the 440GRx and 440EPx. Both processors include an optional integrated security accelerator or Turbo Security Engine, designed to provide Internet Protocol Security (IPSEC) and Secure Socket Layer (SSL) acceleration in support of over 500 Mbps bandwidth. AMCC's Turbo Security Engine is ideal for securing communications protocols over wired or wireless networks, for Virtual Private Network (VPN) support, or for secure internet-based transaction processing.

Targeted at networking applications, the 440GRx processor offers clock speeds up to 667 MHz, with a superscalar architecture that can execute two instructions per clock cycle. With the addition of a high-performance double precision Floating Point Unit and hi-speed USB 2.0 host/device functionality with integrated PHY, the 440EPx is an optimal solution for a wide range of pervasive applications including printing/imaging, wireless access, industrial control and many digital data and media processing applications. Both processors feature a 64-bit DDR I or DDR II SDRAM controller with optional ECC protection, a 32-bit PCI 2.2 compliant interface, dual Gigabit Ethernet MACs, four UARTs, one Serial Communications Port, two IIC units, a NAND-Flash controller, general purpose I/Os, and programmable interrupt control.

"In today's world, increased connectivity brings increased vulnerability. Companies are now looking to integrate security functionality at all levels. AMCC's newly introduced security-enabled processors -- the 440GRx and 440EPx -- will provide a deeper level of security for networking and pervasive applications, while maintaining a high level of system performance," stated Kevin Krewell, editor-in-chief, Microprocessor Report.

"To ensure maximum protection of networks and sensitive data, both enterprise and SOHO customers are turning to integrated chip solutions that feature embedded hardware security, like AMCC's 440GRx and 440EPx processors. A single-chip solution not only offers maximum security but also reduces cost and improves integration into networking systems," said Henk Pruim, vice president and general manager for SafeNet's Networking Business Unit. "SafeNet will be supporting 440EPx and 440GRx customers in their development efforts by using SafeNet's comprehensive QuickSec software suite to build integrated networking devices. This toolset will significantly reduce customers' development cost and time-to-market."

AMCC's PowerPC processors are supported by AMCC and more than 50 third-party vendors who provide a full range of software, boards and development tools necessary for manufacturers to develop products quickly and efficiently. The AMCC 440GRx and 440EPx are expected to be available in the fourth quarter of 2005. For a photo of the 440GRx device please visit: http://www.amcc.com/BestInClass/440GRxPhoto/ and for a photo of the 440EPx please visit: http://www.amcc.com/BestInClass/440EPxPhoto/.

About AMCC

AMCC provides the essential building blocks for the processing, moving and storing of information worldwide. The company blends systems and software expertise with high-performance, high-bandwidth silicon integration to deliver silicon, hardware and software solutions for global wide area networks (WAN), embedded applications such as PowerPC and programmable SOC architectures, storage area networks (SAN), and high-growth storage markets such as Serial ATA (SATA) RAID. AMCC's corporate headquarters are located in San Diego, 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

The statements contained in this press release that are not purely historical are 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. Such forward-looking statements, including statements relating to the products and markets discussed in this press release are subject to a number of risks and uncertainties, including the risk that the products would not be successfully or timely developed, completed or manufactured or achieve market acceptance or that the markets for these products will not materialize or grow as anticipated, 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 for the year ended March 31, 2005, and in other filings of the Company with the Securities and Exchange Commission. 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 news release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement.

Product photos, datasheets and application notes are available upon request. AMCC is a registered trademark of Applied Micro Circuits Corporation.

PowerPC is a registered trademark of the International Business Machines Corporation.

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