8位MCU的磨練的競(jìng)爭(zhēng)力與不斷發(fā)展的架構(gòu)

　　在8位MCU架構(gòu)的進(jìn)化變化，幫助他們保持在整體MCU市場(chǎng)的單位銷(xiāo)售方面的頭。在許多應(yīng)用中，8位微控制器成功地抵御來(lái)自32位微控制器-不只是在情況下的設(shè)計(jì)需要非常小的形式因素的競(jìng)爭(zhēng)，超低能耗，低引腳和極低的價(jià)格。在某些情況下，超越他們的競(jìng)爭(zhēng)對(duì)手實(shí)際上32 8位微控制器。

　　市場(chǎng)分析公司IC Insights，菲尼克斯，亞利桑那州，預(yù)計(jì)8位微控制器將繼續(xù)擁有最大的單位出貨量在單片機(jī)業(yè)務(wù)直到至少2018。另一方面，32位MCU出貨量的增長(zhǎng)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.