Tsev > Exhibition > Ntsiab lus

Microcontroller keeb kwm

Mar 08, 2019

Thawj microprocessor yog 4-ntsis Intel 4004 tawm xyoo 1972, nrog Intel 8008 thiab lwm yam muaj peev xwm microprocessors ua muaj ntau xyoo tom ntej. Txawm li cas los xij, ob lub txheej txheem yuav tsum tau chips lwm tus los siv lub chaw ua hauj lwm, nyiaj tag nrho tus nqi them, thiab ua kom tsis muaj nyiaj txiag siv tshuab computer.


Muaj ib phau ntawv qhia nyiaj TI engineers Gary Boone thiab Michael Cochran nrog txoj kev tsim cov thawj microcontroller nyob rau hauv 1971. Cov txiaj ntsig ntawm lawv txoj haujlwm yog TMS 1000, uas yog ua lag luam muaj nyob rau hauv 1974. Nws ua ke nyeem ntawv nkaus xwb, nyeem ntawv / sau ntawv nco, processor thiab moos ntawm ib lub nti thiab tau tsom rau ntawm lub tshuab.


Qee cov lus teb rau lub neej ntawm ib leeg-CHIP TIME 1000, Intel tau tsim ib lub tshuab computer rau ntawm ib tug nti optimized rau daim ntaub ntawv tswj, Intel 8048, nrog cov khoom coj mus muag thaum xyoo 1977. Nws xyaw RAM thiab ROM rau tib nti. Chip no yuav pom nws txoj kev mus rau hauv ntau tshaj li ib billion ntawm cov tuam txhab hauv PC, thiab lwm cov ntawv sau ntau. Lub sijhawm ntawd, Intel tus Thawj Tswj Hwm, Lukas J. Valenter, tau hais tias cov microcontroller yog ib qho zoo tshaj plaws hauv lub tuam txhab keeb kwm, thiab tau faib cov kev faib nyiaj txiag ntau tshaj 25%.


Feem ntau cov microcontrollers nyob rau ntawm lub sij hawm no tau sib hloov ua ke. Ib qho muaj EPROM kev pab cuam nco, nrog lub qhov muag pleev qhov nyob rau hauv lub hau ntawm lub pob kom cia nws raug rho tawm los ntawm lub teeb ci ultraviolet, feem ntau siv rau prototyping. Tus lwm yog ib lub npog ncauj ntawm ROM los ntawm lub khw muag khoom loj loj, los yog PROM variant uas yog tsuas programable ib zaug; qee zaum qhov no tau qhia nrog lub npe OTP, sawv rau "one-time programmable". Tus PROM tau zoo tib yam nco raws li EPROM, tab sis vim tias tsis muaj ib txoj hauv kev tso tawm rau ultraviolet lub teeb, nws yuav tsis tau erased. Cov erasable versions yuav tsum tau tej pob khoom siv pob zeb nrog quartz qhov rais, ua rau lawv ho kim tshaj li OTP versions, uas yuav tau ua nyob rau hauv qis dua nqi opaque yas pob. Rau cov kab txawv ntawm erasable, quartz yog yuav tsum tau, tsis tshuav tsawg dua iav, rau nws cov transparency rau ultraviolet-iav yog opaque rau UV-tab sis lub ntsiab cost differentiator yog ceramic pob xwb.


Nyob rau hauv 1993, kev qhia txog EEPROM nco cia microcontrollers (pib nrog Microchip PIC16C84) kom raug hluav taws xob sai sai tsis muaj pob ntawv them nqi rau raws li EPROM, cia ob qho ceev ceev prototyping, thiab nyob rau hauv qhov system programming. (EEPROM tshuab tau ua ntej lub sijhawm no, tab sis EEPROM ntxov ua ntej tshaj plaws thiab tsis tshua ntev, ua rau nws tsis zoo rau cov nqi qis-tsim microcontrollers.) Xyoo tib lub sij hawm, Atmel qhia thawj microcontroller siv Flash nco, tshwj xeeb hom EEPROM. Lwm cov tuam txhab tau ua raws li kev nplua, nrog ob hom kev nco.


Niaj hnub no microcontrollers yog pheej yig thiab npaj txhij rau cov hobbyists, nrog rau cov neeg hauv zos loj nyob ib ncig ntawm cov chaw ua haujlwm.