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XR21B1421 - Enhanced 1-Ch Full-Speed USB HID to UART Bridge

Description

The XR21B1421 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to HID class USB interface.

The USB interface is fully compliant to the USB 2.0 (Full-Speed) specification with 12 Mbps USB data transfer rate.

Features

  • ±15kV ESD on USBD+/USBD.
  • USB 2.0 Compliant, Full-Speed (12Mbps).
  • Unique pre-programmed USB serial number.
  • Internally generated 48MHz core clock.
  • Enhanced UART features.
  • Baud rates up to 12 Mbps.
  • Fractional Baud Rate Generator.
  • 512-byte TX and 512-byte RX FIFOs.
  • Auto Hardware / Software Flow Control.
  • Multidrop and Half-Duplex Modes.
  • Auto RS-485 Half-Duplex Control.
  • Selectable GPIO or Modem.

📥 Download Datasheet

Datasheet Details

Part number XR21B1421
Manufacturer MaxLinear
File Size 868.08 KB
Description Enhanced 1-Ch Full-Speed USB HID to UART Bridge
Datasheet download datasheet XR21B1421 Datasheet

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Other Datasheets by MaxLinear

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XR21B1420 Enhanced 1-Ch Full-Speed USB UART
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Full PDF Text Transcription

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General Description The XR21B1421 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to HID class USB interface. The USB interface is fully compliant to the USB 2.0 (Full-Speed) specification with 12 Mbps USB data transfer rate. The USB interface also supports USB suspend, resume and remote wakeup operations. The USB Vendor ID, Product ID, power mode, remote wakeup support, maximum power, and numerous other settings may be programmed in the on-chip OTP memory via the USB interface using either HID reports or MaxLinear-supplied OTP programming tools. The XR21B1421 includes an internal oscillator and does not require an external crystal/oscillator. Any UART baud rate up to 12 Mbps may be generated with this internal clock and the fractional baud rate generator.
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