8位MCU的磨練的競爭力與不斷發展的架構

　　在8位MCU架構的進化變化，幫助他們保持在整體MCU市場的單位銷售方面的頭。在許多應用中，8位微控制器成功地抵御來自32位微控制器-不只是在情況下的設計需要非常小的形式因素的競爭，超低能耗，低引腳和極低的價格。在某些情況下，超越他們的競爭對手實際上32 8位微控制器。

　　市場分析公司IC Insights，菲尼克斯，亞利桑那州，預計8位微控制器將繼續擁有最大的單位出貨量在單片機業務直到至少2018。另一方面，32位MCU出貨量的增長在百分之9.5，更高的年利率比8位裝置。

　　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.