MaxLinear | XR21B1411IL16-F

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.

Features:

• ±15 kV HBM ESD on USBD+/USBD-
• 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
  • Odd, even, mark, space or no parity
  • Automatic Hardware (RTS/CTS or DTR/DSR) Flow Control
  • Automatic Software (Xon/Xoff) Flow Control
  • Multidrop mode
  • Auto Transceiver Control
  • Half-Duplex mode
  • Selectable GPIO or Modem I/O

Applications:

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