XR21B1422 uart equivalent, enhanced 2-ch full-speed usb uart.
* ±15kV ESD on USBD+/USBD
* USB 2.0 Compliant, Full-Speed (12Mbps)
* Unique pre-programmed USB serial number
* Internally generated 48MHz core clock
* .
The XR21B1422 uses the native OS CDC-ACM driver or an Exar supplied custom driver. Exar provides WHQL/HCK-certified sof.
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 su.
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