Parthus Announces Agreement with STMicroelectronics for Development of Next Generation Bluetooth™

Dublin, Ireland - April 24, 2001 - Parthus Technologies (Nasdaq:
PRTH, LSE: PRH), a leading provider of platform-level intellectual
property for the mobile Internet, announced today a licensing and royalty
agreement with STMicroelectronics (NYSE: STM) for the development of a
single-chip Bluetooth radio. The radio combines very high performance with
low power consumption, ideal for next generation mobile devices such as
cellular phones or PDAs.

The co-developed radio chip combines low IF architecture and high
levels of integration which enables a Bluetooth implementation with a
minimum number of external components. In addition, the use of ST's
proprietary BiCMOS6 silicon germanium (SiGe) process results in a
cost-effective and compact design with very low power consumption and low
BERs. High sensitivity and high co-channel and adjacent channel
performance make the radio the best choice for the highest throughput
rates of the Bluetooth standard, while its low power consumption makes it
particularly suitable for battery powered devices, such as cellular phones
or PDAs.

"Bluetooth is a critical technology that extends the pervasiveness of
wireless communication beyond the mobile phone and into the home or
office," said Marie-Hélène Sibille, general manager of ST's Wireless
Communication Division. "Working with Parthus has enabled ST to accelerate
our time-to-market and to extend our position as the leading semiconductor
company for the wireless marketplace. In essence, the ST/Parthus radio is
optimized for highly demanding applications that require longer
transmit/receive distances, but with low power consumption and low bit
error rates (BER)."

The spectral purity of the transmitter allows the Parthus/ST radio chip
to be used with an external power amplifier in Class 1 Bluetooth radio
operations. Also, the chip's flexible digital interface allows it to be
used with a wide range of baseband processors or digital IPs. The
Parthus/ST radio makes it possible to design a cost-effective Bluetooth
radio with a high level of performance in all applications where the
digital IP is embedded.

"We are delighted to be extending our longstanding partnership with ST
into the Bluetooth arena, one of the most exciting wireless technologies
to emerge in the last decade," said Kevin Fielding, president of Parthus.
"Exploiting ST's silicon germanium technology has enabled us to create the
highest performing Bluetooth radio on the market. The design methodology
was based on the use of the latest system modeling and simulation tools.
This methodology made it possible to achieve a high level of performance
and low power consumption in the first cut of silicon."

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Bluetooth is a trademark owned by
Telefonaktiebolaget L M Ericsson and used by Parthus Technologies under