AUSTIN, Texas - June 4, 2001 - High-precision instruments that were once restricted to the lab can now be used in the field, thanks to the new, highly accurate, low-power 3-Volt analog-to-digital converters (ADCs) from Cirrus Logic, Inc. (Nasdaq: CRUS). The CS5540 and CS5541 allow instruments that normally require AC outlet power to now effectively run on batteries without a sacrifice in performance. The chips are targeted toward low-frequency measurement applications and include an easy-to-configure serial interface. Manufacturers of hand-held and transportable devices will find these chips ideal for low-cost, power-conscious applications.

Diverse Applications for Industrial ADCs

The new CS5540 and CS5541 provide 16-bits of true noise-free resolution at a throughput of 260Hz, and 18-bits at a throughput of 6.7Hz. They include a 2-channel multiplexer and feature a 24-bit, fourth order delta-sigma modulator which eliminates tonal interference common in second order delta-sigma modulators. Industrial applications for these chips include hand-held electronic thermometers, portable weigh scales, loop-powered instruments, and systems used to measure pressure and flow of industrial fluids, such as oil flow through a pipeline. The 3-Volt supply is ideal for industrial instruments that require a certain level of intrinsic safety, like those used in combustible chemical or gaseous environments. Medical applications include digital hospital thermometers that can take a patient's temperature in a mere five seconds, or meters that measure pH, glucose levels or blood pressure.

Pricing, Packaging & Availability

Cirrus Logic offers the new 24-bit, 2-channel CS5540 and CS5541 ADCs for $5.20 and $6.20, respectively, in quantities of 1000. Packaged in 16-pin Shrink Small Outline Packages (SSOP), the new converters are in production and evaluation boards with software are available through distributors.

About Cirrus Logic

Cirrus Logic is the premiere supplier of high-performance analog and DSP chip solutions for consumer entertainment electronics that allow people to see, hear, connect, and enjoy digital entertainment. Building on its global market share leadership in audio integrated circuits and its rich mixed-signal patent portfolio, the company targets mainstream audio, video and Internet entertainment applications in the consumer entertainment market. Cirrus Logic operates from headquarters in Austin, Texas and major sites located in Fremont, California and Broomfield, Colorado, as well as offices in Europe, Japan and Asia. More information about Cirrus Logic is available at www.cirrus.com.

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Safe Harbor Provision

Except for historical information contained herein, the matters set forth in this news release are forward-looking statements that are dependent on certain risks and uncertainties including such factors, among others, as overall conditions in the semiconductor market; the rate of consumer electronics market adoption of new products; customer cancellations of orders, or the failure to place orders consistent with forecasts; unforeseen manufacturing difficulties; hardware or software deficiencies; delays in customer qualification of key new products; achieving high utilization of the company's manufacturing resources; final determination of appropriate inventory write-downs based on the outlook at the end of each quarter; actual operational spending; and the risk factors listed in the company's Form 10-K for the year ended March 25, 2000, and in other filings with the Securities and Exchange Commission. The foregoing information concerning Cirrus Logic¡¦s business outlook represents our outlook as of the date of this news release, and Cirrus Logic undertakes no obligation to update or revise any forward-looking statements, whether as a result of new developments or otherwise.

Note to editors: Cirrus Logic is a trademark of Cirrus Logic Inc. All other product names noted herein may be trademarks of their respective holders.