Video: Dab tsi yog synchronous thiab asynchronous counter?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv ib asynchronous counter , ib qho kev tshwm sim sab nraud yog siv ncaj qha SET lossis CLEAR lub flip-flop thaum nws tshwm sim. Hauv ib synchronous txee Txawm li cas los xij, qhov xwm txheej sab nraud yog siv los tsim cov mem tes uas yog synchronized nrog lub moos sab hauv. Ib qho piv txwv ntawm ib asynchronous counter yog a ripplecounter.
Hauv qhov no, qhov txawv ntawm synchronous thiab asynchronous counter yog dab tsi?
Synchronous counters muaj lub moos sab hauv, whereas asynchronous counters tsis txhob. Yog li ntawd, tag nrho cov flip-flops nyob rau hauv ib tug synchronous counter yog tsav ib txhij los ntawm ib zaug, ntau lub moos mem tes.
Tsis tas li ntawd, qhov txawv ntawm ib qho synchronous thiab asynchronous load input yog dab tsi? Lawv yog ib tug loj qhov sib txawv ntawm ib qho synchronous thiab asynchronous load inputs . Cov Synchronous load yog synchronous thiab qhov no txhais tau hais tias suav los ntawm Q cov txiaj ntsig yuav nyob zoo ib yam thaum nws mus dhau qhov load input . Cov Asynchronous load input yog txawv.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog asynchronous counter?
A ripple txee yog ib asynchronouscounter qhov twg tsuas yog thawj flip-flop yog clocked los ntawm anexternal moos. Tag nrho cov flip-flops tom ntej yog clocked los ntawm qhov output ntawm lub flip-flop ua ntej. Asynchronous counters kuj hu ripple - cov txee vim txoj kev clockpulse ripples nws txoj kev los ntawm flip-flops.
Dab tsi yog synchronous counters siv rau?
Daim ntawv thov ntawm Synchronous Counters Raws li lub npe qhia, Synchronous counters ua "suav" xws li lub sij hawm thiab hluav taws xob pulses (sab nraud qhov chaw xws li lub teeb infrared). Lawv yog dav siv nyob rau hauv ntau ntau lwm yam designs xws li processors, lub laij lej, lub sij hawm lub sij hawm thiab lwm yam.
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