XR21V1410


1-Ch Full-Speed USB UART

Features

  • USB 2.0 Compliant Interface
    • Supports 12 Mbps USB full-speed data rate
    • Supports USB suspend, resume and remote wakeup operations
  • Enhanced UART Features
    • Data rates up to 12 Mbps
    • Fractional Baud Rate Generator
    • 128 byte TX FIFO
    • 384 byte RX FIFO
    • 7, 8 or 9 data bits, 1 or 2 stop bits
    • Automatic Hardware (RTS/CTS or DTR/DSR)Flow Control
    • Automatic Software (Xon/Xoff) Flow Control
    • Multidrop mode w/ Auto Half-Duplex Transceiver Control
    • Multidrop mode w/ Auto TX Enable
    • Half-Duplex mode
    • Selectable GPIO or Modem I/O
  • Internal 48 MHz clock
  • Single 2.97-3.63V power supply
  • 5V tolerant inputs
  • Virtual COM Port Drivers
    • Windows 2000, XP, Vista, 7, and 8
    • Windows CE 4.2, 5.0, 6.0, and 7.0
    • Linux
    • Mac
Applications

  • Portable Appliances
  • External Converters (Dongles)
  • Battery-Operated Devices
  • Cellular Data Devices
  • Factory Automation and Process Controls
  • Industrial Applications

Product Change Notification, Revision B to D
PCN_12-0305-01.pdf

Download Software Drivers

Description

The XR21V1410 is an enhanced 1-channel Universal Asynchronous Receiver and Transmitter (UART) with a USB interface. The USB interface is fully compliant to Full Speed USB 2.0 specification that supports 12 Mbps USB data transfer rate. The USB interface also supports USB suspend, resume and remote wakeup operations.

The XR21V1410 operates from an internal 48MHz clock therefore no external crystal/oscillator is required like previous generation UARTs. With the fractional baud rate generator, any baud rate can accurately be generated using the internal 48MHz clock.

The large 128-byte Tx FIFO and 384-byte RX FIFO of the XR21V1410 helps to optimize the overall data throughput for various applications. The Automatic Transceiver Direction control feature simplifies both the hardware and software for half-duplex RS-485 applications. The multidrop (9-bit) mode with automatic half-duplex transceiver control feature further simplifies typical multidrop RS-485 applications.

The XR21V1410 operates from a single 2.97 to 3.63 volt power supply and has 5V tolerant inputs.

Software drivers for Windows 2000, XP, Vista, 7, 8, and CE, as well as Linux and Mac are supported for the XR21V1410.
 
For UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.
Part NumberPkg CodeRoHSMin
Temp.
(°C)
Max
Temp.
(°C)
StatusBuy NowOrder Samples
XR21V1410IL-A1-F    EOL
XR21V1410TR-A1-F    EOL
XR21V1410IL16TR-FQFN16QFN16-4085Active
XR21V1410IL-0B-EBBoard  Active
XR21V1410IL16-FQFN16QFN16-4085Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs. 
Specifications
CPUInterfaceUSB 2.0
CH1
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps)na/12/na/na
Tx/RxFIFO(Bytes)128/384
AutoRTS/CTSYes
AutoRS-485Yes
5VTolInputsYes
Sup V2.97 -3.63
PkgsQFN-16
Data Rate@5/3.3/2.5Vna/12/na
Documents
Block Diagram
Datasheets
Software Drivers
Application Notes
Evaluation Board Schematics, Design Files & User’s Manual
Product Flyer
Software
Product Change Notification