USB 2.0 UARTs feature internal 48MHz clock
Nu Horizons Electronics
UARTs
Nu Horizons is offering Exar's latest UARTs featuring a USB 2.0 compliant interface, the XR21V1410/V1412/V1414 series.
These single, dual, and quad-channel UARTs are fully compliant to the Full-Speed USB 2.0 interface specification and support 12Mbps USB data-transfer rate.
The product series targets a large cross-section of embedded and consumer applications.
Examples of embedded applications are gaming systems, ATM machines and industrial automation systems.
For consumer applications, the series is suitable for smart phones, personal digital assistants (PDAs), GPS systems, DVD players/recorders and gaming systems, as well as other portable applications.
The XR21V1410, XR21V1412 and XR21V1414 have a USB slave interface that is compliant with the Full-Speed USB 2.0 specification.
All devices in the series support USB suspend, resume and remote wakeup operations.
The devices share a common set of features including: large FIFO sizes of 128-byte TX and 384-byte RX that optimise overall data throughput; automatic hardware (RTS/CTS or DTR/DSR) flow control; automatic software (Xon/Xoff) flow control; and multi-drop mode with auto half-duplex transceiver control.
None of the devices require an external crystal/oscillator, which saves on board real estate.
These devices also have sleep and power-save modes to minimise power consumption.
Software drivers are available for Windows 2000, XP, Vista and CE, as well as Mac and Linux.
The devices operate from a single 2.97V to 3.63V power supply with the core operating at 1.2V to minimise overall power consumption.
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