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XR21B1411 - ENHANCED 1-CH FULL-SPEED USB UART

Datasheet Summary

Description

The XR21B1411 (B1411) is an enhanced 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.

Features

  • ±15kV HBM ESD on USBD+/USBD-.
  • USB 2.0 Compliant, Full-Speed (12 Mbps).
  • Supports USB suspend, resume and remote wakeup operations.
  • Unique preprogrammed USB serial number.
  • 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.
  • Odd, even, mark, space or no parity.
  • Automatic Hardware (RTS/CTS or DTR/DSR) Flow Control.
  • Automatic S.

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Datasheet preview – XR21B1411

Datasheet Details

Part number XR21B1411
Manufacturer Exar
File Size 334.38 KB
Description ENHANCED 1-CH FULL-SPEED USB UART
Datasheet download datasheet XR21B1411 Datasheet
Additional preview pages of the XR21B1411 datasheet.

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Full PDF Text Transcription

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XR21B1411 ENHANCED 1-CH FULL-SPEED USB UART JULY 2016 REV. 1.2.0 GENERAL DESCRIPTION The XR21B1411 (B1411) is an enhanced 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 B1411 operates from an internal clock that is programmable to 6, 12, 24 or 48 MHz. Therefore, no external crystal / oscillator is required as in previous generation UARTs. With the fractional baud rate generator, any baud rate up to 12 Mbps can be accurately generated using the internal clock.
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