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XR21B1421

MaxLinear
Part Number XR21B1421
Manufacturer MaxLinear
Description Enhanced 1-Ch Full-Speed USB HID to UART Bridge
Published Sep 1, 2018
Detailed Description General Description The XR21B1421 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to HID cl...
Datasheet PDF File XR21B1421 PDF File

XR21B1421
XR21B1421


Overview
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 no-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.
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 memor...


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