Macronix Releases World's Highest Performance Low-Voltage 4-I/O MXSMIO(TM) Serial Flash Memory

New MX25U Series MXSMIO(TM) Serial Flash Provides Highest XIP and SnD Performance in the Industry

HSINCHU, Taiwan, January 7 - Macronix International Co., Ltd. (TSE: 2337), the number one provider of
Serial Flash, announced the industry's highest performance 1.8V 4-I/O
MXSMIO(TM) (Serial Multi I/O) Serial Flash memory. Operating at speeds up to
104MHz of each I/O in 4-I/O mode, the new MX25U family 8Mb-64Mb enables
applications not only to shadow code to cache as SnD (Store and Download)
with the performance exceeding the Parallel Flash memory, but also supports
execute-in-place (XIP) capability with enhanced Quad Peripheral Interface
mode to execute the code directly from the Flash memory. With the advantage
of high performance Serial Flash, users may enjoy the lower pin count and PCB
saving together with the better throughput compared with Parallel Flash
memory.

The low driving voltage and leading performance MX25U Series is suitable
for mobile phones, DECT phones, Bluetooth, GPS and other portable devices and
as well as power consumption concerned embedded applications.

"The NOR Flash memory trend in portable and mobile phone industry has
changing from Parallel to Serial interface," said F.L. Ni, vice president of
Macronix. "In particular, the design of ultra low-cost mobile handsets made
the most use of the low pin count, 4-I/O advantages of Serial Flash to reduce
total system cost. And Macronix, as the Serial Flash market leader and IDM
company, takes the lead in providing our customers MX25U family with highest
product performance, full portfolio, and stable availability."

With the data throughput running up to 416Mbps, the MX25U Series runs at
the performance even exceeding that of a page-mode Parallel Flash. The device
also provides the 8/16/32/64-byte length wrap-around mode that enables users
to execute directly from the Flash memory without cache buffers.

In addition to the high read performance, the MX25U product series also
supports write suspend/ resume feature to facilitate the usage in mobile
applications. It is fabricated by Macronix's new 1.8V floating gate
technology, providing low power consumption, and 100K endurance cycles.

All MX25U Series Quad Peripheral Interface devices are available in
industrial temperature range and offered in an 8-contact WSON (6mm x 5mm) or
8-lead SOP (200 mil) package. Samples of the 32Mb 1.8V MXSMIO(TM) Serial
Flash are available now and mass production will begin in the first quarter
of 2010. The 64Mb sample will also be offered in January and 16Mb/8Mb
densities will be available in March.

About Macronix International Co., Ltd.

Founded in 1989, Macronix International Co., Ltd. (TSE: 2337.TT) is a
leading provider of innovative Non-Volatile Memory (NVM) solutions. Macronix
is the largest worldwide manufacturer of ROM products, and also provides a
wide range of Parallel and Serial NOR Flash products across various
densities. These products are used in vast range of consumer, computing,
communications & networking, and industrial applications.

For more information, please visit the Company web site at
www.macronix.com .

    Media Contacts:

     Headquarters(Taiwan)
     Michelle Chang
     Department Manager
     Corporate Communication Office
     Macronix International Co., LTD.
     TEL: +886-3-578-6688 ext. 71233
     FAX: +886-3-666-3169
     Email: michellechang@mxic.com.tw

     Europe
     Jeff Doong
     Product Marketing Manager
     Macronix Europe, N.V.
     TEL: +32-2-456-80-20 ext. 23
     FAX: +32-2-456-80-21
     Email: jeffdoong@mxic.com.tw

Michelle Chang, +886-3-578-6688 ext. 71233, Fax, +886-3-666-3169, michellechang at mxic.com.tw; Jeff Doong, +32-2-456-80-20 ext. 23, Fax, +32-2-456-80-21, jeffdoong at mxic.com.tw, both of Macronix