XA 16-bit microcontroller 32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16MB address rangeXA 16位微控制器32K / 1K OTP / ROM /无ROM , 8通道8位A / D,低电压2.7 V.5.5 V, I2C , 2个UART , 16MB的地址范围