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Exar unveils UARTs for battery-operated consumer devices

Posted: 25 Sep 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Exar? Universal Asynchronous Receiver Transmitter? XR16V554/V564/V654? Universal Asynchronous Receiver Transmitters? UART?

Exar Corp. expanded its serial communications product portfolio with the release of a new family of high performance, low voltage UARTs.

The XR16V554/V564/V654 four-channel series is designed for a variety of battery-operated consumer products, including portable devices, as well as industrial applications such as factory automation/process control, telecommunications and networking, among others.

"With 16-, 32- and 64byte FIFO choices, customers can match their application's requirements more precisely," said Levent Ozcolak, vice president of marketing, Interface Products. "The lower operating voltage and the resulting power saving along with the backwards compatibility with higher voltage Quad-UARTs provide a smoother transition from legacy 5V designs to 3.3V operating voltage."

Composed of six different devices, the XR16Vxx4 series includes the XR16V554/554D, XR16V564/564D and XR16V654/654D. All the devices share a common set of features, including four independent UART channels, selectable TX and RX trigger levels, and data rates up to 16Mbps. In addition, the XR16V564/564D and XR16V654/654D have automatic sleep mode, automatic hardware flow control, automatic software flow control, a wireless IR encoder/decoder and a fractional baud rate generator. The series is compliant with both the Intel and Motorola bus interfaces. The XR16V554/554D series are 16byte FIFO devices, the XR16V564/564D series are 32byte FIFO devices, and the XR16V654/654D series are 64byte FIFO devices.

All six devices are available now, and operate over the industrial temperature range. In 1,000-piece quantities, the XR16V554/554D are priced in the mid-Rs.278.82 ($6) to Rs.325.29 ($7) range, the XR16V564/564D in mid-Rs.325.29 ($7) range, and the XR16V654/654D in mid-Rs.418.23 ($9) range. All devices in the series are supported by standard serial port software drivers for popular operating systems, including Windows CE 4.2 and 5.0, Windows 2000, XP and Linux.

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

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