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UART supports high-speed data transmission in industrial apps

Posted: 09 Feb 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Ismini Scouras? Exar? UART? XR16V798?

 XR16V798 UART

Exar Corp. has released its highest performing UART, an eight-channel device that transmits data at 8Mbps.

Designed for industrial applications that require high-speed data transmission, the XR16V798 is a 2.25V to 3.6V UART with 5V tolerant inputs that features 64-byte transmit (TX) and receiver (RX) FIFOs with fully programmable trigger levels. It also features automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis and automatic software (Xon/Xoff) flow control.

The 8-channel UART is designed with RS-485 half-duplex direction control with programmable turn-around delay, an Intel or Motorola bus interface and sleep mode with a wake-up indicator. It also has the industry standard 16C550 register set, and is pin-for-pin compatible with Exar's XR16L788 (8-channel, 8-bit data bus) device.

Targeted at remote access servers, network management, factory automation/process control and multi-port RS-232/RS-422/RS-485 communications cards, the XR16V798 operates over the industrial temperature range of -40C to 85C.

"The XR16V798's fractional baud rate generator can accept any external clock to generate the desired baud rate; this eliminates the need for an additional clock source and results in saving on both board space and cost," said Levent Ozcolak, divisional vice president and GM of interface products division.

The XR16V798 is supported by Exar's UART software drivers for operating systems, including Windows 2000, XP and Linux. The XR16V798 is available in 100-pin QFP packages at $20.13 for 1,000 pieces.

- Ismini Scouras

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