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Company joins Bluetooth 1.2 SIG as an early adopter


ON Semiconductor (Nasdaq: ONNN) today announced that it has joined the Bluetooth Special
Interest Group (SIG) as an Early Adopter of Version 1.2, confirming its strategic direction
to support the Bluetooth technology with its Power Management Unit (PMU) technology and
monolithic building blocks.

Because of its expanded support of the wireless standard, ON Semiconductor received a
Bluetooth license covering royalty-free intellectual-property and patent rights and obtained
rights to use the Bluetooth trademark for marketing purposes.

ON Semiconductor made its official entrance in the Bluetooth market during the 2001 Bluetooth
Congress in Monte Carlo, Monaco June 5 to 8.

The Bluetooth standard is a computing and telecommunications industry specification that
describes how mobile phones, computers, personal digital assistants (PDAs) and virtually
every electronic device can easily intercommunicate using short-range wireless connections.
The original Bluetooth promoters are 3Com, Ericsson, IBM, Intel, Lucent Technologies,
Microsoft, Motorola, Nokia and Toshiba. ON Semiconductor joined the 1,900-member Early
Adopter SIG, established to promote the Bluetooth standard.

According to IMS' "Global Opportunities for Bluetooth in Key Applications" (Note 1) report,
shipments of equipment enabled by Bluetooth are expected to increase to over 1 billion units
by the year 2005, with the bulk of the devices serving the mobile communications market.*

"ON Semiconductor addresses those companies designing Bluetooth modules and Original
Equipment Manufacturers (OEMs) integrating Bluetooth functionality into consumer or
professional communications devices," said Jaime Baringo, ON Semiconductor product manager.
"In addition to our broad portfolio of monolithic semiconductor building blocks, our
integrated PMUs feature significant space savings, reduced cost and reduced power
consumption."

About ON Semiconductor's PMUs

A typical Bluetooth application has distinct functional elements such as a Radio Frequency
(RF) transceiver and Power Amplifier (PA) stage, baseband subsystem (memory, DSP and audio)
and Lithium (Li)-Ion or Li-polymer or battery circuitry. Integrated Circuits (ICs) provide
most of these functions at the semiconductor level within a module. Alternatively, a system
building block approach enables flexibility to migrate existing platforms to new applications
such as moving system building blocks from a wireless mobile phone to an audio headset or PC
card.

The use of Li-Ion or Li-Polymer batteries introduces the challenge of using circuitry that
handles both the battery charge at any given moment and the battery's charge and de-charge
cycles. The baseband subsystem requires the circuit to manage the power requirements for the
Digital Signal Processor (DSP), memory and audio systems in active and sleep modes. These
subsystems require the additional functionality of resetting signals and monitoring the
battery's status. To increase overall system efficiency, engineers insert a DC-to-DC
converter between the battery and the voltage regulator and look for innovative ways to apply
very low-noise supply voltage to the RF transceiver and PA stage.

ON Semiconductor's PMU technology enables engineers to address the power-management
requirements of a typical Bluetooth system design. The company's PMU approach offers
significant space savings through the monolithic integration of the system's functions;
reduced cost due to the single-package approach; and the reduced need for external passive
components. A typical product based on PMU technology features a Low-Dropout (LDO)
regulator, reset circuitry, DC/DC conversion, battery management and control logic. For more
information, visit http://www.onsemi.com/bluetooth.


About ON Semiconductor

ON Semiconductor (Nasdaq: ONNN) is a global supplier of high-performance broadband and power
management integrated circuits and standard semiconductors used in numerous advanced devices
ranging from high-speed fiber optic networking equipment to the precise power management
functions in today's advanced portable electronics. For more information visit ON
Semiconductor's Web site at http://www.onsemi.com.


* Intex Management Services, "Global Opportunities for Bluetooth in Key Applications", April
2000


Contact:

Geert DeVuyst
Communications
ON Semiconductor
33 5 34 61 13 90
geert.de.vuyst@onsemi.com

Or

Jonathan Batty/Joanna Lane
Brodeur Worldwide
(On behalf of ON Semiconductor)
(44) (0)1753-790-700
jbatty@uk.brodeur.com / jlane@uk.brodeur.com
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