Exar Introduces Industry-First Dual Channel Devices: An I2C/SPI UART and RS-232 Transceiver Combination, and a Low-Voltage 1.8V I2C/SPI UART


Eleventh and Twelfth Industry-First Devices Reaffirms Company's Continuing Focus on Technology Innovation

FREMONT, Calif., Feb. 12 /- Exar Corporation (NASDAQ:EXAR), a leading provider of high-performance, mixed-signal silicon solutions for the worldwide communications infrastructure introduced two industry-first dual channel devices: I2C/SPI UART integrated with RS-232 transceivers (XR20V2172), and a low voltage 1.8V I2C/SPI UART with 64-Byte FIFO (XR20M1172). The dual-channel XR20xx172 series, like the industry-first single-channel series announced in December 2006, targets the growing market demand of consumer and battery powered applications including laptops, portable devices, desktop PCs, and industrial peripheral interfaces such as handheld terminals and Point-of-Sale (POS) systems, amongst others.

"Extending our serial communications reach into new markets, the XR20V2172 combines the functionality of an adjacent device function -- RS-232 transceiver -- onto the UART, delivering to customers an integrated solution that can minimize design challenges and accelerate market entry for their products," said Levent Ozcolak, vice president of marketing, Interface Products Division. "Also, in battery operated and consumer applications our low voltage (1.8V) XR20M1172, which is available in small form factor packages, is ideal for space constrained design environments."

Product Details

The XR20M1172 UART has 64 byte (TX and RX) FIFOs, a selectable I2C/SPI slave interface and operates from 1.62V to 3.63V. The enhanced features in the XR20M1172 include a programmable fractional baud rate generator, and 8X and 4X sampling rates that allows for a maximum baud rate of 16 Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags.

The XR20V2172 high performance UART has 64 byte TX and RX FIFOs, a selectable I2C/SPI slave interface with integrated RS-232 transceivers. The XR20V2172 operates from 3.3V to 3.63V and offers additional features such as a programmable fractional baud rate generator, and, 8X and 4X sampling rates that allows for a maximum baud rate of 1 Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/CTS) and patented software (Xon/Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback feature offers the ability to perform system diagnostics.

"With four times the throughput compared to the single channel XR20V2170, the XR20V2172 is an ideal fit in next generation high performance applications where multiple ports are required," said Rakesh Bhatia, strategic marketing manager, Interface Products.

Twelve Industry Firsts

The XR20M1172 and XR20V2172 mark Exar's eleventh and twelfth industry- first interface product offerings in less than two years. In January 2007, the Company launched the XR19L2x2 8-bit dual-channel UART and RS-232 combination series; in December 2006, the Company launched the XR20M1170 (1.8V) and XR20V2170 I2C/SPI UART with an integrated RS-232 transceiver; in August 2006, Exar introduced the XR17V254 a quad-channel 66MHz PCI 3.0 compliant UART. In June 2006, Exar released the XR16V2x5x series of 16Mbps dual UARTs; in April 2006, Exar launched the single-channel UART and RS-232 combination, the XR19L2xx series; in February 2006, Exar released the XR17V252 a dual-channel 66MHz PCI 3.0 compliant UART; in December 2005, the Company introduced the industry's first 1.8V single-channel UART (XR16L570) in 24 and 32-pin QFN packages; in June 2005, Exar added the industry's smallest UART (XR16L580); lastly, in March 2005, Exar introduced a multi-channel 66MHz PCI 3.0 compliant UART family, the first in this series was an eight-channel (XR17V258) solution.

Tools and Support

Evaluation boards that can easily be connected to an existing I2C or SPI bus are available. With the availability of software drivers and Exar's application support hot line (uarttechsupport@exar.com) UART customers can accelerate their product development cycle.

Packages, Prices, Availability and Additional Information

The XR20M1172 is offered in 28-pin TSSOP and 32-pin QFN packages: and is priced in the low-to-mid $3 range in 1,000 piece quantities. Additional information on this product can be found at: www.exar.com/product.php?ProdNumber=XR20M1172 .

The XR20V2172 is offered in a 64-pin QFN package, and is priced in the $4-$5 range in 1,000 piece quantities. Additional information on this product can be found at: www.exar.com/product.php?ProdNumber=XR20V2172. Both devices are available for sampling now. Additional information on other UART Products at: www.exar.com/area.php?areaID=3 .

Exar products are European RoHS compliant except for external lead finish. Lead-free products are also available upon request.

About Exar

Exar Corporation designs, develops and markets high-performance, analog and mixed-signal silicon solutions for a variety of markets including networking, serial communications, and storage. Leveraging its industry-proven analog design expertise and system-level knowledge, Exar delivers to customers a wide array of technology solutions for current as well as next generation products. The Company is based in Fremont, CA, had fiscal 2006 revenues of $67.0 million, and employs approximately 260 people worldwide. For more information about the Company visit: www.exar.com/.

Source: Exar Corporation

CONTACT:
Greg Kaufman,
Marketing Communications of Exar Corporation,
+1-510-668-7000

Web site: http://www.exar.com/

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