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XR21B1422

MaxLinear
Part Number XR21B1422
Manufacturer MaxLinear
Description Enhanced 2-Ch Full-Speed USB UART
Published Sep 1, 2018
Detailed Description XR21B1422 Enhanced 2-Ch Full-Speed USB UART General Description The XR21B1422 is an enhanced Universal Asynchronous Rec...
Datasheet PDF File XR21B1422 PDF File

XR21B1422
XR21B1422


Overview
XR21B1422 Enhanced 2-Ch Full-Speed USB UART General Description The XR21B1422 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to 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.
The XR21B1422 includes an internal oscillator and does not require an external crystal/oscillator.
Any UART baud rate from 300 bps to 12 Mbps may be generated with this internal clock and the fractional baud rate generator.
The UART pins for each port may also be configured as GPIO; direction, state, output driver type and input pull-up or pull-down resistors are programmed either through on chip OTP, or on the fly via memory mapped registers.
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