Connectivity Products

EXAR, the market leader, offers the industry's broadest line-up of UART, bridging and serial protocol transceivers solutions.

Exar offers over 100 UART devices supporting a wide operating power supply range from 1.62V to 5.5V, 1 to 384 bytes of FIFO and popular interfaces such as USB, PCIe, PCI, I2C, SPI, VLIO and 8-bit. In addition, Exar offers serial transceivers that support standards such as RS-232, RS-422 or RS-485. Exar also offers dual / multi-protocol serial transceivers that further help optimize the system architecture by supporting 2 to 8 of the most popular interface standards.

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UART & Bridging Solutions

uartsAs the market leader in providing UART solutions, Exar offers the broadest line of patented industry-proven product families of USB, PCIe, PCI, I2C/SPI, VLIO and 8-bit UARTs.

Serial Transceivers

Serial transceiversExar offers a complete portfolio of RS-232, RS-485, RS-422 and Multiprotocol transceivers.  At 52Mbps, Exar offers the industry's fastest RS-485 and Multiprotocol transceivers.

Data Converters

Data convertersExar supplies a variety of ADCs and DACs as well as integrated AFEs that provide signal conditioning and digitization of CCD signals.


documentationDocument locator for all of Exar's interface products.



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