XR21B1421IL28-0A-EVB,EVAL BOARD FOR XR21B1421IL28
XR21B1421IL28-F,IC UART BRIDGE TO USB 1CH 28-QFN
XR21B1421IL28TR-F,IC USB HID-UART BRIDGE 1CH 28QFN
XR21B1422IL40-0A-EVB,EVAL BOARD FOR XR21B1422IL40
XR21B1422IL40-F,IC UART TXRX 512B 2CH 40QFN
XR21B1422IL40TR-F,IC UART TXRX 512B 2CH 40QFN
XR21B1424IV64-0A-EVB,EVAL BOARD SUPPORTS B1424 64 LQF
XR21B1424IV64-F,IC UART BRIDGE TO USB 4CH 64LQFP