UART and Bridging Solutions

Exar is an industry leader in providing UART products; we offer a variety of patented industry-proven product families of USB, I2C/SPI, VLIO, 8-bit, PCIe, and PCI UARTs. We also have top of the line bridging solutions including I2C GPIO Expanders and SPI GPIO Expanders.

UART Product Portfolio

Our Universal Asynchronous Receiver Transmitter (“UART”) product portfolio ranges from cost-effective industry-standard devices to high-performance multi-channel UARTs with a broad range of first in, first out (“FIFO”) depths and industry leading performance and features while supporting popular central processing unit (“CPU”) bus interfaces such as 8-bit Industry Standard Architecture (“ISA”), 8-bit VLIO, 2-wire Inter-Integrated Circuit (“I²C”), 4-wire Serial Peripheral Interface (“SPI”), Peripheral Component Interconnect (“PCI”), Peripheral Component Interconnect Express (“PCIe”) and Universal Serial Bus (“USB”). In addition, we were first to market with a wireless UART solution that includes a high-performance UART, controller, and Radio Frequency (“RF”) functionality along with our proprietary firmware that enables the application to send and receive data wirelessly over a secure proprietary protocol. Our General Purpose Input Output (“GPIO”) expanders provide a convenient drop-in replacement second source for popular industry devices.

If you have more questions about any Exar UART chip or bridging solutions, you can reach out to the Exar’s UART Technical Support group. Find the correct UART for your system with the answers from our technical advisors.

We want your systems to operate to their fullest potential. Let Exar help you understand what your system requirements might be and also determine what products, including UARTs, will best meet your needs.