Ukuphonononga i-74ls74: Uhlalutyo olucacisiweyo lwemisebenzi yePIN, amanqaku, kwaye usebenzise amatyala
2024-07-22 2012

I I-74ls74 yiflip-flip-flop-flop enezicelo ezahlukeneyo.Eli nqaku liza kwazisa ubuCwangciso lwe-74ls74 kunye nemisebenzi, izakhiwo kunye nomgaqo wokusebenzela, iiparamitha zobugcisa kunye nokusetyenziswa, ukuze ukwazi ukuyiqonda ngcono le ft lip-flop-flop-flop-flop.

Ikhathalogu

Yintoni iflip-flop-flop?

I-Dlip-flop isixhobo solwazi sinomsebenzi wememori onomsebenzi wememori kunye namazwe amabini azinzileyo ukugcina idatha ye-1-bin binary.Yeyona ndawo ibalulekileyo yelogic ebonisa iisekethe ezahlukeneyo zexesha, kodwa nesekethe ebalulekileyo isekethe kwi-digital isekethe.Ke ngoko, iflip-flop inoluhlu olubanzi lwezicelo kwiinkqubo zedijithali kunye neekhompyuter.Iflip-flop inamazwe amabini azinzileyo, i.e. 0 kwaye 1. phantsi kwesenzo somenzi wangaphandle, inokuqhonza kwelinye ilizwe ukuya kwelinye.

Iflip-flip-flop (i-Flip-Flop okanye iFlip-Flop-Flop) inamasango amane namasango, i-G1 kunye ne-G2 i-Flip-flop-flop-flop-flop-flop-flop-flop.Xa i-Slip-Dlop ye-Slip-Dlop isebenza kwiNdawo ye-Strigger, umqondiso kufuneka ube negalelo ngaphambi kokuba kufike umqondiso wokutsiba.Ukuba umqondiso ophazamisayo ukhona kwigalelo ngexesha le-CP ephezulu, imeko yeflop-flop inokuba nempazamo.Nangona kunjalo, ii-triggers zomphetho zivumela umqondiso ukuba ufake i-split yesibini ngaphambi kokuba i-CP i-CPP yewotshi.Oku kunciphisa kakhulu ixesha lokuba igalelo liphazamiseke, ngaloo ndlela kuncitshiswe ukubakho kokuphazamiseka.I-Edge D Flip-Flop ikwabizwa ngokuba yindawo yokubhloka ye-D flip-flop.I-Edge D Flip-Flop inokwenziwa ngokudibanisa iiflip ezimbini ze-D Flip-Flip-Flip, kodwa i-CP yeFlip-Flop ye-D Flip-Flop kufuneka ihlawulwe ngesango.

Amagqabantshintshi angama-74ls74

I-74ls74 yi-Dlip-Flop-Flop yenziwa yi-chip ye-Fiortchiortor.Ingasetyenziswa njenge-oscillator, irejista, irejista yokubhala, kunye ne-frequency yecandelo.Ineempawu zokusetyenziswa kwamandla eziphantsi, ukuchashwa kwengxolo enkulu kunye nokusebenza ngokubanzi kwe-Vightages, ukuSebenza ngokubanzi kusetyenziswe kuyilo lwesekelo lwedijithali.Isixhobo ngasinye siqukethe iibhloko zesekethe ezimbini ezifanayo zibangela iibhloko zesekethe.

Ukutshintshwa kunye nokulingana

I-CD74OCT74

• Hef40312b

I-MC74F74

• i-sn74al74

• I-78hct74

I-74lv2g80

Ukuqwalaselwa kwePIN kunye nemisebenzi ye-74ls74

I-74ls74 inezikhonkwane ezili-16 kunye namagama nemisebenzi yazo zezi zilandelayo.

IPIN 1 (1clr (ibha): I-PATAT i-Flip Flop ngokucoca inkumbulo yayo

IPIN 2 (1D): IPIN yePIN ye-Flip Flop

IPIN 3 (1clk): Ezi zikhonkwane kufuneka zibonelelwe nge-puck ye-flse yeflop flop.

IPIN 4 (i-1OP)): Enye iPIN yePIN yeFlip Flop

I-PIN 5 (1Q): IPIN yePIN yeFlip Flop

I-PIN 6 (i-1Q '(i-bar))

I-PIN 7 (i-VSS): iqhagamshelwe kumhlaba wenkqubo

IPIN 8 (2q '(i-bar))

I-9 (2Q): IPIN yePIN ye-Flip Flop

IPIN 10 (2OP): I-BABER): Enye iPIN yePIN yeFlip Flop

IPIN 11 (2clk): Ezi zikhonkwane kufuneka zinikezwe nge-puck ye-flse yeflop flop.

IPIN 12 (2D): I-PIN yePIN yeFlip Flop

I-PIN 13 (2clr (ibha): I-PATAT i-Flip Flop ngokucoca inkumbulo yayo

I-PIN 14 (VDD / VCC): Amagunya e-IC ngokwesiqhelo nge-5V

Zithini izinto ze-74ls74?

Inkqubo yokuSebenza iqondile, kwaye isantya sokuphendula saso sikhawuleza.

• Iyamthanda ngawo uhlengahlengiso lwepakethi ye-Flip-flop ye-DFP

• Ixabiso le-modyuli leMpahla yeXesha eliPhakamileyo yeXesha leMpahla yi-Volts ezimbini.

• I-74ls74 ifuna ukuba amandla okuhambisa amandla ukuze asebenze ngokufanelekileyo kwaye aneemfuno eziphezulu zolawulo lwamandla.

Ulwakhiwo Nomgaqo-nkqubo wokuSebenza we-74ls74

I-78ls74 flip-flop ixhotywe nge-bip-flip-flip, nganye ifaka i-terminals ezimbini zegalelo (D kunye ne-termp) kunye / q).Ezi ft zeflip-flops isebenza nge-trigger elungileyo, okuthetha ukuba idatha ihlaziywe ngexesha lomda wewotshi.

Xa umda we-rock ufika, ixabiso le-Impling D iya kugcinwa ngaphakathi kwesango lokuhambisa amasango le-D flip-flop.Xa umda wewotshi ufika, ixabiso eligcinwe ngaphakathi kwi-Dlip-Flop-Flop iya kuhlaziywa ngokohlobo lweflop-flop, kwaye ixabiso elihlaziyiweyo liya kuba lizaliseka kwi-terminals q kunye / q.

Iiparamitha zobugcisa ze-74ls74

Lo mfanekiso ungezantsi yiparamitha yezobugcisa ye-SN74ls74an.

Zithini iinkqubo ze-74ls74?

Zithini iinkqubo ze-74ls74?

• Isixhobo sokutshixa

• Ukwahlulahlulahlulahlulahlulahlulo

Isekethe yeSnubber

• Umvelisi wepali

• Isixhobo sokubhalisa

I-Lating Mechanism

Isekethe yemodyuli ye-FSK

I-4ls74 isekethe yesiqhelo yesicelo

Lo mfanekiso ungasentla sisiphaluka esikude sesekethe edityaniswe nge-74ls74.Ukubonelelwa kwesi siphaluka kusebenzisa i-cacicitio ye-cacecifier inesiphatho secala lesekethe.Ukhuseleko kufuneka lunikelwe ingqalelo xa usenza loyilo.Ngokwesiqhelo, kuba ibhodi yesekethe inamagunya angama-220v enamandla, kufuneka siqinisekise ukusebenza ngokuchanekileyo.Sifaka iplagi yamandla e-ProGI isixhobo esifuna ukulawula kude kwi-CZS ye-CZ, kwaye emva koko singaqala ukuyisebenzisa.Isitshixo ngasinye kwi-Transmit yolawulo esikude linekhowudi yokutshintshela eyahlukileyo, ekhokelela kwiziphumo ezahlukileyo xa usebenzisa isitshixo ngasinye.Ukongeza, indlela yeqhosha kunye nendlela yokusebenza iya kuchaphazela nolawulo.

Imibuzo ebuzwa rhoqo [i-FAQ]

1. Yintoni i-7474 ic?

I-7474 isixhobo esikhutshelweyo.Iziphumo ze-q ziya kutshintsha kuphela kumda we-probger pupger.Unxantathu omncinci kwi-Clock (CP) yokufakelwa kwesimboli ibonisa ukuba ifowuni iyinto entle.

2. Ithini i-74ls74?

I-IC 74ls74 luhlobo oluphindiweyo lwe-Dute-on off of Hambergedity lweeflip flops ziququzelela ukusetwa okucacileyo kunye nokuncedisa.Inokwazi ukugcina idatha ngohlobo lweenombolo zebhinari kwaye iza neempawu ezigciniweyo zinokutshintshwa xa kufuneka.

3. Usebenzisa njani i-74ls74?

Isebenza iflop-flop ichanekileyo.Amandla e-IC usebenzisa i-VCC kunye ne-GND.Njengoko bekutshiwo ngaphambili, nganye i-flip-flop imisebenzi ngokuzimeleyo.Qhagamshela imiqondiso yokufaka kwi-TINS 2 kunye ne-3 ukubandakanya iflop yokuqala yeflip, kunye nemveliso eboniswe kwiPIN 5 ne-6.

4. Ithetha ntoni isangqa7444?

Unxantathu ubonakalisa ukuba umqondiso wewotshi ngumqondiso ophelelwe ngumphetho.Isangqa sibonisa ukuba umqondiso uphantsiI-74ls74 ine-on-grogger ye-trigger (iphantsi ukuya phezulu).

5. Isebenza njani i-flip flop-flop-flop?

I-Dlip-Flip-Flop ifaka ixabiso le-D-igalelo kwinxalenye eqinisekileyo yomjikelo wewoyi (njengokunyuka kwewotshi yewotshi).Ixabiso elithinjiweyo liba yi-Q.Ngamanye amaxesha, iziphumo q azitshintshi.Iflip-flip-flop inokujongwa njengeseli yememori, i-oda ye-zero, okanye umgca wokulibaziseka.