I-7408 ye-Logic ye-Gap Chip ISikhokelo sokuGqibela: IPinaut, iimpawu kunye nokuSetyenziswa
2025-04-02 13055

Kwihlabathi lee-elektroniki zedijithali, iitheko zesango zeLogic sisiseko sokwakha zonke iinkqubo ezintsonkothileyo, kwaye i-IC 7408 ngummeli wezixhobo ezisisiseko.Njenge-chip ekudibaniseni igalelo eliziindile ezine ezizimeleyo kunye namasango, i-IC 7408 isetyenziswa ngokubanzi kwiimodyuli zesekelo zedijithali ezinjengeendawo zokubala, ezithethwayo, kunye nokhetho lwedatha.Eli nqaku lizazise ngokucwangcisiweyo kwaye liqiniseke ngokuqatha amanqaku aphambili olwazi lwe-IC 7408. Ukusuka kwinkcazo ye-IC 7408. I-PIN Umsebenzi, umzobo wesekethe, ndiyathemba ukuba lo mxholo ungakunika ulwazi olusebenzayo kunye nenkxaso yezobugcisa.

Ikhathalogu

Yintoni i-IC 7408

I-IC 7008, ikwabizwa ngokuba yi-IC 74ls08, yisekethe edityanisiweyo ebandakanya amasango amane ahlukeneyo kunye namasango, ngamnye oxhotyiswe ngamagalelo ama-8-bit.Le ic yinxalenye yochungechunge lwe-74xyyy.Namasango, izinto ezibalulekileyo zale ic, zidlale indima ebaluleke kakhulu ekutshintsheni i-Logic States.Kula masango, iindidi ezimbini zemiqondiso ye-Logic ziyasetyenziswa.

Eyona fomu iphambili ngumqondiso ophezulu, osebenza ngaphakathi kwe-3-5v i-voltage.Kwelinye icala, ifom yesibini ngumqondiso wenqanaba eliphantsi, i-akin ukuya kwinqanaba le-2-0.2V ye-voltage.Ngamnye nesango kwi-7408 i i i i i i i-7408 i i i i i i-pins ezintandathu zokufaka kunye ne-pins ezimbini zokuphuma ukuze zisebenze ngokufanelekileyo.

Iziphumo ziyakwazi ukukhona kumazwe aphezulu namazantsi.Nangona kunjalo, ukukhutshwa ukuphakama, zombini igalelo maziphezulu.

Ngokwesiqhelo, i-IC 7408 inamasango amane namasango, nganye iyakwazi ukusebenza ngokuzimeleyo ngaphandle kokuchaphazela abanye.

Ngapha koko, i-74ls08 ifuna kuphela umthombo wamandla omnye, kunye nemveliso yayo iguqukele kwizixhobo ze-TTL kunye nezinye ii-microntntirs.Oku kwenza ukuba ukhetho oluthembekileyo kwiinjineli ezininzi kunye nenzondelelo ye-elektroniki.

I-IC 7408 IPIPOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOUTH

I-7408 i-IC AMANQAKU APIS 14 Izikhonkwane, zibonelela ngoluhlu lwezinto ezisebenzayo ezinjengokuvumela amasango ethusayo, kunye nokuqhutywa kwamagalelo kunye nokuphuma.

Uqwalaselo lwePIN ngolu hlobo lulandelayo

Inkcazo yePIN

I-IC 7408 umzobo wesekethe

I-IC 7408 amanqaku kunye neenkcazo

Uluhlu lwevolthi yokusebenza: +4.75 ukuya + 5.25V

I-Voltage encomekayo: + 5V

I-volt ye-voltage: 7v

Iphezulu yangoku ivunyelwe kwimveliso nganye yezibuko: 8MA

Imveliso ye-TTL

Ukusetyenziswa kwamandla asezantsi

Ixesha lokuphumla le-18

Ixesha lokukhohlisa eliqhelekileyo: ii-18NS

Ubushushu obusebenzayo: I-0 ° C ukuya kwi-70 ° C

Iqondo lokugcina: -65 ° C ukuya kwi-150 ° C

Ukuchazwa kwe-elektroniki

Isimo: Iyafumaneka kwiphakheji ye-SOIC okanye ye-PDIP, inxalenye yothotho lwe-TTL ye-TTL.

I-14-pin i-intanethi i-intanethi

Igalelo eli-2 elizimeleyo kunye namasango: Inamasango amane anjalo.

Eyona ratings iphakamileyo

Imeko yokusebenza

-Iimpawu zombane: Iinkcukacha ezichaziweyo zevoti, i-voltage ephezulu neliphantsi kunye negalelo eliphantsi, igalelo lemveliso yangoku, igalelo eliphantsi neliphezulu, kunye nokubonelela okwangoku.

I-IC 7408

I-74ls08: Inguqulelo ye-Schottky ephantsi, ibonelela ngemisebenzi efanayo kodwa iqhele ukusetyenziswa kwamandla kunye neempawu ezahlukeneyo zombane.

I-74hc08: Inguqulelo ye-CMOS ephezulu ye-CMOS, idume ngokusebenza kwizikhewu eziphezulu xa kuthelekiswa nenguqulo ye-TTL ye-TTL.

I-74hct08: Inguqulelo ye-CMOS ephezulu ihambelana ne-TTL, edibanisa izibonelelo zetekhnoloji ye-CMOS ngokuhambelana namanqanaba eVtl Vight.

Umgaqo wokuSebenza we-IC 7408

I-IC 7408 inamasango amane, amasango, ngamnye afumana imiqondiso emibini.Isango ngalinye lenza isisiseko kwaye isebenza, intsingiselo ukuba zombini igalelo liphezulu (iNqanaba 1), imveliso iphezulu (1).Ukuba kukho nayiphi na igalelo iphantsi (Logic 0), iziphumo ziphantsi.Ngokusekwe kwimithetho-siseko ye-TTL (i-fissistor-fissictor), i-IC 7408 ivelisa iziphumo zesango ngalinye, elidluliselwa kwizikhonkwane zokuphuma.Yiyo loo nto, i-IC 7408, eyaziwa ngokuba yigalelo le-2 le-2 kunye namasango, isetyenziswa ngokubanzi kwizicelo ezahlukeneyo ze-elektroniki ngenxa yokungahambi kakuhle kunye nokuthembeka.

Ungayisebenzisa njani i-IC 7408

I-IC 7408 isebenzisa izixhobo zesango nezathenga, eziza kwiindidi ezintathu zendibaniselwano.Ukudityaniswa nganye kuvelisa inqanaba lokuphuma ngokusekwe kwinqanaba lokusebenza elithile.Kule meko, amasango kunye namasango aphunyezwa kusetyenziswa iindlela zokuhambisa.

Njengoko kubonisiwe kumzobo ongezantsi

I-chip inezibuko ezine ezinxulumene ngaphakathi, kunye ne-port nganye eyenziweyo kunye nokusebenza kwigalelo elibini elisengqiqweni.Umzekelo, izibuko 1 luphathe ukusebenza kwe-DNA phakathi kwe-A1 kunye ne-B1, ukubonelela ngemveliso kwi-terminal y1.

Itheyibhile yeNyaniso yeSango yenzeka ngolu hlobo lulandelayo

Ukuya kumzekelo obalulekileyo lo mxholo ungentla, masiqwalasele isiphango esilula sesango, njengoko kubonisiwe kumzobo olandelayo.

Ukuqonda okungcono kwemisebenzi yangaphakathi, sinokubhekisa kwisekethe yangaphakathi yesango nesango, eliboniswe ngezantsi.

Kule sekethe, abaTelizo babini abaThengisisayo babumbeka ngesango.I-terminals yegalelo ezimbini zesango kunye nesango ukusuka kwiziseko ezisisiseko zala maxesha mabini.Ezi ntembeko ziqhagamshela kwii-nodes zokutshintsha i-Logic yegalelo.Iziphumo zesango kunye nesango liyi-voltage yonke i-R1.Oku kukhutshwa kunxulumene ne-D2 ye-D2 ngokusebenzisa umqobo okuphezulu kwi-R1 ukufumanisa ukuba imeko yemveliso.

Isiphaluka esisebenzayo sinokwahlulwahlulwahlulwa kwezi nqanaba zilandelayo

Inqanaba loku-1: Xa i-Flot icinezelwe, kwangoku kwiziphelo ezomileyo kuzo zombini iindlela ze-zero.Ngenxa yoko, ukuhambisa i-Q1 kwaye i-Q2 icinyiwe, kubangela ukuba i-VCC yamandla e-VCC iyonke ibonakale kubo.Kuba i-vcc iyonke ivela ngaphesheya, akukho voltage ithole kuyo yonke i-R1, ikhokelela ekukhutshweni kwenqanaba eliphantsi.Ke, xa igalelo liphantsi, iziphumo ziphantsi.

Inqanaba lesi-2: Xa nayiphi na iqhosha licinezelwe, enye idluliselwa, kwaye enye ivala.I-windotor isebenza njengesekethe emfutshane, ngelixa i-fissing isebenza njengesekethe evulekileyo, ebonisa i-VCC iyonke.Okwangoku, i-voltage ihlile i-R1 yeyona i-zero, igcina iziphumo kwinqanaba eliphantsi.Ke ngoko, xa igalelo liphantsi, iziphumo zihlala ziphantsi.

Inqanaba lesi-3: Xa amaqhosha omabini acinezelwa, bobabini beziphatha, kwaye i-voltage yazo i-zero, ibangela ukuba i-vcc iyonke ibonakale kuyo yonke i-R1.Kuba imveliso i-voltage kuphela kumthi-mali ka-R1, iphezulu.Ngenxa yoko, xa zombini igalelo ziphezulu, iziphumo ziphezulu.

Emva kokuqinisekisa la mazwe mathathu, kuyabonakala ukuba banelise itafile yenyaniso ekhankanywe apha ngasentla.Ukongeza, ukulingana kwesango kunye nesango kunokubhalwa ukusebenzisa itafile yenyani, i.e., Y = AB okanye A + Ab okanye AB okanye A + B.

Ngapha koko, kubalulekile ukuba uqaphele ukuba isango kunye nesango okanye indibaniselwano ye-2 kunye ne-ports ayinakwenza amasango ahlukeneyo ethundo.Nangona kunjalo, amasango anokusetyenziselwa ukulibala amanye amasango ethu.Umzekelo, isango linokuguqulwa libe yiSango le-NANS lisebenzisa isango le-N0.Kwaye amasango adlala indima ebalulekileyo ekufumaneni amanye amasango enjenge-xnor ne-xor.Kodwa, ukuba isango lidityaniswe nesinye sesango le-Logic, linokwenza isango elitsha lengcinga, njengokuhlanganisa, okanye, njl njl.

Ubungakanani be-IC 7408

Apho i-IC 7408 isetyenzisiwe

The 7408 IC, also referred to as IC 74LS08, has a wide array of applications.Isetyenziswe ngokukodwa kwiimeko ezifuna kunye nokusebenza kwengqondo.I-chip inezibuko ezine, kwaye kunokwenzeka ukuba lisebenzise enye okanye zonke ezi zibuko ngaxeshanye.

I-chip iqeshiwe kwiinkqubo ezifuna imisebenzi ye-DNA ephezulu.Njengoko bekutshiwo ngaphambili, amazibuko ngaphakathi kwe-chip ayakhiwanga i-Schottky Deds ukunciphisa ukulibaziseka ekutshintsheni amazibuko.Yiyo loo nto, i-chip ilungele isantya esiphezulu kunye nokusebenza.

Ngapha koko, le chip ibonelela nge-TTL iziphumo ezifunwa ziinkqubo ezithile.

Izicelo ze-IC 7408 zibandakanya

I-gates yeGigital Logic

Izinto zokubala zeBinary

Ii-Aultimers

Iiflopsi

Abaqhubi beeBhasi / Abamkeleyo

Idilesi ye-Decoders

Idatha i-latches

I-Logic Isango

Ii-decoders

Iirejista ze-Shift

Izinto zokubala

Isekethe ye-Arithmetic

Ukuququmbela

I-7408 Chip isetyenziswa ngokufanelekileyo kuyilo lwesekethe kunye nesekethe yokulawula.Iyenza i-logic kunye nomsebenzi, ehambisa iziphumo eziphezulu kuphela xa zonke imiqondiso yegalelo ziphezulu, inkoliso kwiziphaluka zedijithali.Ngapha koko, ukukhangela ii-chips ezininzi ezingama-7408 kuvumela ukufezekiswa kwemisebenzi enzima ye-Locac.

Nangona kunjalo, xa usebenzisa i-7408 chip, ukuqwalaselwa ezithile kuyimfuneko:

Uluhlu lwevolunti yomqondiso we-Vemploges kufuneka lube ngaphakathi kuluhlu oluchaziweyo kwidata yeChip.Ukudlula kolu luhlu kunokukhokelela ekungasebenzi kakuhle okanye ukonakala kwiChip.

Umthamo wokulayisha umqondiso wokufaka kufuneka uqwalaselwe.Ukuba kuya kufuneka iqhagamshelwe kwezinye iisekethe okanye amasango e-logic, qinisekisa ukuhanjiswa kwesiginali.

Ulwalamano lwexesha lweempawu zegalelo zikwafuna ukuqwalaselwa.Kwezinye iindlela, imiqondiso yokufaka inokuba nolandelelwano ngexesha, ekufuneka idityaniswe ngokuvakalayo ngokweemfuno zoyilo.

Ukushwankathela, i-7408 Chip yi-chip esisiseko se-chip ye-chip inamasango amane namasango.Ifakwe ngokubanzi kuyilo lwesekethe kunye nesekethe yokulawula.Ingqwalaselo kufuneka ihlawulwe kuluhlu lwevolthi yophawu lwe-Interfal, ukulayisha amandla, kunye nolwalamano lwexesha.