Tsev > Exhibition > Ntsiab lus

Microcontroller

Mar 08, 2019

Ib lub microcontroller (MCU rau chav microcontroller, lossis UC rau μ-controller) yog ib lub computer me me ntawm ib qho kev sib tshuam nkaus xwb. Nyob rau hauv niaj hnub terminology, nws yog zoo li, tab sis tsis ntse dua, ib qho system rau ib tug nti (SoC); ib qho SoC kuj muaj xws li ib tug microcontroller ua ib feem ntawm nws cov khoom. Ib lub microcontroller muaj ib los yog ntau dua CPUs (processor cores) nrog rau kev nco thiab cov khoom siv tawm tswv yim / qhov hluav taws xob. Qhov kev zov me nyuam nco hauv daim ntawv ntawm tus xov tooj ntawm kab laug sab RAM, NOR flash los OTP ROM feem ntau kuj muaj nyob rau nti, nrog rau me me ntawm RAM. Microcontrollers yog tsim los rau kev siv kos npe, hauv qhov sib piv rau cov microprocessors uas siv hauv cov tshuab computer los yog lwm yam kev siv hom phiaj uas muaj ntau hom chips.


Microcontrollers yog siv tshuaj tua kab mob thiab khoom siv, xws li lub cav tsheb tswj, kev siv tshuaj kho mob, cov chaw taws teeb ntawm lub chaw, cov chaw ua haujlwm hauv tsev, cov khoom siv, cov cuab yeej hluav taws xob, cov khoom ua si thiab lwm lub nruab. Los ntawm kev txo qhov loj thiab tus nqi piv rau tus qauv siv uas siv cov microprocessor cais, nco, thiab cov khoom siv tawm tswv yim, cov microcontrollers ua kom nws siv kev tswj cov lej digitally ntau dua thiab cov txheej txheem. Mixed teeb liab microcontrollers muaj ntau, sib txuas cov khoom sib txuas lus uas yuav tsum tswj kom tswj tsis tau cov tshuab hluav taws xob. Nyob hauv cov ntsiab lus ntawm internet ntawm cov khoom, microcontrollers yog kev siv nyiaj txiag thiab nrov txhais ntawm cov ntaub ntawv khaws cia, kev xav thiab ua kom lub ntiaj teb zoo li cov cuab yeej yas.


Qee cov microcontrollers siv tau plaub lo lus thiab ua haujlwm ntawm cov zauv xws li qis dua 4 kHz, rau kev siv zog tsawg tsawg (ib tus lej nationalwatts lossis microwatts). Lawv feem ntau muaj peev xwm tuav kev ua haujlwm thaum tseem tos ib qho kev tshwm sim xws li ib lub pob nyem lossis lwm yam kev cuam tshuam; hwj huam noj thaum pw tsaug zog (CPU moos thiab feem ntau peripherals) tej zaum tsuas yog nanowatts, ua rau ntau tus zoo suited rau daim ntaub ntawv ntev roj teeb. Lwm cov microcontrollers tej zaum yuav ua haujlwm rau tus cwj pwm tseem ceeb, qhov lawv yuav tau ua ntau dua li cov teeb meem digital digital processor (DSP), nrog cov moos ceev dua thiab kev siv zog.