I2C/SPI UARTs are suited for limited-space applications.
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Press Release Summary:
While XR20M1170 is I2C/SPI UART with 64-Byte FIFO, XR20V2170 adds integrated RS-232 transceiver. Both have 64 byte TX and RX FIFOs, selectable I2C/SPI slave interface, and programmable fractional baud rate generator. Models XR20M1170 and XR20V2170 operate, respectively, from 1.62-3.63 V and 2.97-3.63 V supplies and feature 16 selectable TX and RX FIFO trigger levels. Each offers 8X and 4X sampling rates for max baud rate of 16 Mbps @ 3.3 V (XR20M1170) and 1 Mbps @ 3.3 V (XR20V2170).
Original Press Release:
Exar Introduces Two Industry-First Devices: an I2C/SPI UART and RS-232 Transceiver Combination, and a Low-Voltage 1.8V I2C/SPI UART
Eighth and Ninth Industry-First Devices Target Space-Constrained Industrial, Consumer and Battery Powered Applications
FREMONT, Calif., Dec. 4 -- Exar Corporation (NASDAQ:EXAR), a leading provider of high-performance, mixed-signal silicon solutions for the worldwide communications infrastructure introduced two industry-first devices: an I2C/SPI UART with 64-Byte FIFO and integrated RS- 232 transceiver combination (XR20V2170), and a low voltage 1.8V I2C/SPI UART with 64-Byte FIFO (XR20M1170). Both devices target industrial, consumer and battery-powered applications.
"The small package options of the XR20X series is a good fit for space constrained designs, and the lower pin count host interface simplifies design and layout issues and helps to accelerate the OEM's final system deployment," said Levent Ozcolak, vice president of marketing, Interface Products. "The XR20V2170 offers a single-chip solution for a UART and RS-232 transceiver combination which reduces cost and board space while providing a high- performance serial interface."
Nine Industry Firsts
The XR20M1170 (1.8V) and XR20V2170 mark Exar's eighth and ninth industry- first interface product offerings in less than two years. 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 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 the industry's first multi-channel 66MHz PCI 3.0 compliant UART family, the first in this series was an eight-channel (XR17V258) solution.
Technology and Product Details
"Leveraging Decicon Inc.'s industry-proven I2C/SPI IP cores, Exar was able to quickly introduce two highly integrated and innovative devices for a wide array of embedded applications," said Levent Ozcolak, vice president of marketing, Interface Products.
"We are pleased that utilizing our market-proven and innovative cores helped accelerate the introduction of Exar's XR20X series," said Ismail Okter, president and CEO, Decicon, Inc. -- a leading IP and IC solution provider with a market focus on Power Management and Interface products.
The XR20V2170 is a high performance UART with 64 byte TX and RX FIFOs, a selectable I2C/SPI slave interface and RS-232 transceiver. The XR20V2170 operates from 2.97V to 3.63V. It 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 capability allows system diagnostics.
The XR20M1170 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 XR20M1170 include a programmable fractional baud rate generator, and 8X and 4X sampling rate 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.
"Capitalizing on trends in emerging embedded markets, and responding to customer demands, Exar has extended its serial communications capabilities once again with the highly competitive and extremely versatile XR20X series," said Rakesh Bhatia, strategic marketing manager, Interface Products. "The XR20V2170, with its on-chip RS-232 transceiver simplifies the design process because it eliminates the need for two devices, and the XR20M1170 at 1.8V dramatically reduces power consumption and is ideal for a wide array of applications."
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 XR20M1170 is offered in five packages: a 28-pin QFN, 24-pin QFN, 16- pin-QFN, 24-pin TSSOP, and a 16-pin TSSOP, and is priced in the $2.00 range in 1,000 piece quantities. Additional information on this product can be found at: www.exar.com/product.php?ProdNumber=XR20M1170 . The XR20V2170 is offered in a 40-pin QFN package, and is priced in the $3.00 range in 1,000 piece quantities. Additional information on this product can be found at: www.exar.com/product.php?ProdNumber=XR20V2170 . 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, clock and timing, and storage. Leveraging its industry-proven analog design expertise and system-level knowledge, Exar delivers to customers a wide array of technology solutions for their 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 250 people worldwide. For more information about the Company visit: www.exar.com/ .
CONTACT: Greg Kaufman, Marketing Communications of Exar Corporation, +1-510-668-7000
