8位MCU的磨练的竞争力与不断发展的架构

　　8位MCU的磨练的竞争力与不断发展的架构

　　在8位MCU架构的进化变化，帮助他们保持在整体MCU市场的单位销售方面的头。在许多应用中，8位微控制器成功地抵御来自32位微控制器-不只是在情况下的设计需要非常小的形式因素的竞争，超低能耗，低引脚和极低的价格。在某些情况下，超越他们的竞争对手实际上32 8位微控制器。

　　市场分析公司IC Insights，菲尼克斯，亚利桑那州，预计8位微控制器将继续拥有最大的单位出货量在单片机业务直到至少2018。另一方面，32位MCU出货量的增长在百分之9.5，更高的年利率比8位装置。

　　Some of the architectural changes — such as making 8-bit MCUs easier to program in C code — fall into the category of keeping up with a changing world. Other changes have a “back to the future” feel about them， such as returning to the concept of closed-loop feedback control with the MCU’s peripherals executing tasks without CPU intervention.

　　Autonomous MCU peripherals have been around for quite some time， but MCU vendors dedicated to fully supporting their 8-bit product lines keep adding sophisticated techniques that move the meaning of the term “autonomous peripheral” into a new realm.