BOSTON--(BUSINESS WIRE)--April 14, 2005--Teradyne, Inc. (NYSE:TER) announced that Cambridge Silicon Radio (CSR), a leader in semiconductors for short-range wireless communications, has placed multiple orders for the FLEX™ test system with a full range of microwave test capability. The systems will be used for engineering and production device test of CSR's BlueCore™ integrated system-on-chip (SOC) devices utilizing Bluetooth™ technology.

"Teradyne's FLEX system offers CSR the broadest range of capability, wide acceptance at subcontract manufacturers, and unsurpassed cost-of-test economics for testing our SOC devices," said Chris Ladas, Vice President of Manufacturing, CSR. "With high-efficiency multi-site testing, FLEX delivers significant cost savings over alternative solutions."

"CSR continues to demonstrate its leadership in offering highly integrated, cost effective solutions to wireless consumer markets, " said David Trounson, General Manager, Teradyne Semiconductor Test Wireless Business Unit. "FLEX is well aligned to CSR's aggressive cost targets and we look to continue to work with CSR to support their exciting roadmap of single chip wireless devices with the high-performance and high-parallel capability of FLEX."

About FLEX

Breaking the cost of test barrier with high-efficiency multi-site test, while meeting the demands of increasing complexity for an expanding range of devices, FLEX advances multiple test technologies. FLEX spans test requirements from conventional DFT and structural test to standard analog and mixed-signal to complex SOC, for testing consumer, automotive, mass storage, wireless, and data communications devices. Its Tester-per-device-core™ architecture delivers a complete set of test resources to each device core, with instrument synchronization and control in device clock time on a vector-by-vector basis. The Universal Slot test head and high-density instrumentation allow easy reconfiguration to changing test needs, and the OpenFLEX™ open system architecture complements Teradyne's FLEX instrument suite, allowing the addition of focused instruments to further enhance system performance and test economics. To learn more about FLEX, visit http://www.teradyne.com/flex/

About CSR

CSR plc (LSE: CSR.L) is a leading provider of single-chip radio devices for wireless communication. CSR offers high performance single-chip CMOS technology in hardware/software packages for Bluetooth and Wireless LAN standards. CSR's Bluetooth technology, BlueCore, features in more than 60 percent of all Bluetooth qualified end products and modules. Its customers include Nokia, Dell, Panasonic, Audi, NEC, Toshiba, Samsung and Sony who use BlueCore system in more than 50 million products today. BlueCore is now on its fourth generation and was the first to support enhanced data rate Bluetooth. Building on the company's success in single-chip Bluetooth CMOS devices, CSR launched UniFi-1 in November 2004. UniFi-1 offers the industry's lowest power and costs, and highest performance. It is also the only true single-chip Wi-Fi device to support 802.11a/b/g protocols and be suitable for battery powered pocket sized devices. CSR is headquartered in Cambridge, UK, with offices in Richardson, Texas, USA; Tokyo, Japan; Seoul, Korea; Taipei, Taiwan and Aalborg, Denmark. More information can be found at www.csr.com

About Teradyne

Teradyne (NYSE:TER) is a leading supplier of Automatic Test Equipment and interconnection systems. The company's products deliver competitive advantage to the world's leading semiconductor, electronics, automotive and network systems companies. In 2004, Teradyne had sales of $1.8 billion, and currently employs about 5900 people worldwide. For more information, visit www.teradyne.com. Teradyne(R) is a registered trademark of Teradyne, Inc. in the US and other countries. All product names are trademarks or registered trademarks of Teradyne, Inc. (including its subsidiaries) or their respective owners.

Bluetooth is a trademark owned by Telefonaktiebolaget LM Ericsson, Sweden.