D-thunye: molao-motheo o ho sebelisa mehaho, tafole 'nete

Thunye - e mathomo unit trust molao le tsa digital jarolla ka ho iketsa tse peli-boemo botsitso, e 'ngoe ea tseo e abeloa boleng "1",' me e mong - "0".

Ka mokhoa oa ho phethahala ha dikgokelo utloahalang khetholla mefuta e latelang a maqheka: T-phetlhwang-flop, D-phetlhwang-flop, JK-phetlhwang-flop, RS-lintho tse tsosang litakatso. Ya e le hantle, mona ke dikgetho atileng ka ho fetisisa, empa ka ntle ho bona ho na le disebediswa tsa ho jarolla ka ho iketsa le mefuta e meng.

A sehloohong sena a, re nka ka ho hlahlobisisa D-thunye. O ile a re mochine o na le lesedi le 'ngoe (D) input Ka hona, e reretsoe ho ho kenya tshebetsong nako lieha mosebetsi.

Molao-motheo oa ho sebetsa

The bath abel Q _{(sa t + 1)} = bang dt hlalosa tšebetso ea mofuta ona wa sesebediswa kang D-phetlhwang-flop. Nnete tafole (Lethathamo ho fetoha) bakeng sa mochine ona puso e bontšitsoeng tlaase mona.

Joalokaha re ka bona, ka ho ea pele 'me a ea le mola bone ea ka matshwao a medumo makgabane Q ka linako tse sa t le sa t + 1 tsamaisane. Ke hore, D-phetlhwang-flop ke elements pontšo ho tieho. Ka lebaka la maqheka tshielano mofuta nahana ha ba fumane kopo tsa bona, e le khumo ea tla pheta input pontšo le e nyenyane nako e lieha.

D-mofuta phetlhwang-flop e hahoa ea synchronous le 'ngoe-boemong ba (ba se nang balekane-sethaleng) le duplex (tse peli tse-sethaleng) RS-disebedisweng tse ding tsa mofuta o le mong. mechine tsena sebetsa ho latela tafole phetohong eo.

Single-sethaleng D-phetlhwang-flop ka di kentswe tswa lera le 'ngoe ea synchronous RS-sethusathuto le mong AND-HE1, eo e amahanya ka lesedi ho tloaelehile hore batho (D) input tse pedi D-pitikololo input thunye.

Ho fumana e le tlhalohanyo lefela ka oache input RS mofuta jarolla ka ho iketsa boemo ba sea utloahala kapa che-e leng thibetsoeng le outputs likarolo AND-NO ₂ le AND-NO _3. Ha ho fetola kgokagantswe pontšo boemo ba etsa kōpo ea ho ea input ya data, kapa etsa hore utloahalang lefela ka input S (ka D = 1) kapa ka input R (ka D = 0) ho tshielano thunye T. E tla switjha ho boemo tsamaisanang le boemo utloahalang D. Single- D-mofuta phetlhwang-flop tieho ea boikatiso ea input le ka khefu pakeng o kgokahanya matšoao.

D-phetlhwang-flop le taolo e matla. Mosebetsi Tlhaloso, mesebetsing temperaturdiagramm

Jarolla ka ho iketsa sesebediswa ea mofuta ona e hahoa tse tharo RS-thunye tshielano mofuta. Ba li thehiloe NAND, ka bobeli ba phetha switjha mosebetsi, 'me ea boraro ke khumo ea. The dipholo tsa switjha thunye etselitsoeng ho laola khumo thunye.

Ha boemo ba pontšo C lekanang ho lefela utloahalang, ho khumo le ditshwaelo thunye fuoa ho se nke lehlakore pontšo motswako, 'me ho lithuto tsa ho mokgwa wa polokelo. Ha ho fetola lesedi pontšo switjha ho etsa hore ka mokgwa wa ho robala, 'me pontšo e input ho e etsa tlhalohanyo e mong thunya input C, le khumo ea automaton e beha boemong bo bocha bo tšoana le tlhahisoleseding pontšo ea D-input ka potoloho ea pejana.

Tabeng ea moo lesedi pontšo phetoho boemo ba tla etsahala nakong ea tlhomamiso ea khumo thunye pontšo ha sesebelisoa switjha ha feta. E fellang kateng le hore ka morero oa ho ho switjha e thunye ke baeti ba fihlelang ho ea ka matshwao a medumo tlhahisoleseding, fetisetsa hore ba sesebediswa khumo ka nako ya phetoho input pontšo ka taolo input C tswa mabaka lefela ho utloahalang e mong le latching pontšo ho tswa ho ditshwaelo tsa ka input tlhahisoleseding.