说明：  Cygnal C8051F系列单片机的功能部件包括模拟多路选择器可编程增益放大器ADCDAC电压比较器电压基准温度传感器SMBus/ I2CUARTSPI可编程计数器/定时器阵列PCA定时器数字I/O端口电源监视器看门狗定时器WDT和时钟振荡器等所有器件都有内置的FLASH存储器和256字节的内部RAM有些器件还可以访问外部数据存储器RAM即XRAM Cygnal C8051F系
(Cygnal C8051F MCU' s features, including analog multiplexer, programmable gain amplifier ADCDAC voltage comparator voltage reference temperature sensor SMBus/I2CUARTSPI programmable counter/timer array PCA timer digital I/O ports Watchdog Timer Power Monitor WDT and clock oscillator such devices to all devices have built-in FLASH memory and 256 bytes of internal RAM that some devices can also access external data memory RAM or XRAM Cygnal C8051F series)