7408 Malangizo pa chipata cha Chip
2025-04-02 12975

Mdziko la zamagetsi zamagetsi, mabwalo otsimikizira zipata ndi maziko omanga njira zovuta zonse, ndipo IC 7408 ndi nthumwi ya zida zoyambirirazi.Monga chophatikizira magawo anayi odziyimira pawokha, IC 7408 imagwiritsidwa ntchito kwambiri mu module madera azigawo monga zowerengera, encode, ndi osankhidwa ndi deta.Nkhaniyi idzafotokoza mwadongosolo mfundo zazikuluzikulu za IC 7408. Kuchokera pamalingaliro ake, chithunzi chojambulidwa, ndikukhulupirira kuti izi zingakupatseni chidziwitso ndi thandizo laukadaulo.

Kataloji

Kodi ic 7408 ndi chiyani

IC 7408, yomwe imadziwikanso kuti iC 74l08, ndi gawo lalikulu lophatikizidwa ndi zipata zinayi, aliyense ali ndi zodula zokwanira 8-bit.IC ili ndi gawo la mndandanda wa 74xyyy.Ndi zipata, zigawo zosafunikira za iC i iC, imasewera gawo lofunika posinthira mfundo.Mu zipata izi, mitundu iwiri yazizindikiro imagwiritsidwa ntchito.

Fomu yoyambira ndi chizindikiro chambiri, chogwirira ntchito mkati mwa 3-5V mafuta a voliyumu.Mosiyana, mawonekedwe achiwiri ndi chizindikiro chotsika kwambiri, amadzola mpaka 2-0.2V.Chipata chilichonse ndi chipata cha 7408 chimafunikira zikhomo zisanu ndi chimodzi ndi zikhomo ziwiri zotulutsa.

Zotuluka zimatheka kuti zikhalepo mu zonse komanso zotsika.Komabe, kuti zoduliza zikhale zazitali, malo ogwiritsira ntchito akuti ayenera kukhala okwera.

Nthawi zambiri, IC 7408 imakhala ndi zinayi ndi zipata, aliyense amene angagwire ntchito pawokha popanda kukhumudwitsa ena.

Kuphatikiza apo, 74lgy08 imangofunika mphamvu imodzi yokha, ndipo zotulutsa zake zimagwirizana ndi zida za TTL ndi zina microcororser.Izi zimapangitsa kukhala chisankho chodalirika kwa mainjiniya ambiri ndi okonda zamagetsi.

IC 7408 PEMUT

NKHANI za IC 7480, zimapereka magwiridwe antchito monga othandizira pazipata, ndi zopangira zothandizira ndi zotuluka.

Kukonzekera kwa Pini ndi motere

Kufotokozera kwa zikhomo

Chithunzi cha IC 7408

IC 7408 ndi mawonekedwe

Magetsi ogwiritsa ntchito volid: +4.75 mpaka + 5.25V

Analimbikitsa magetsi ogwiritsira ntchito: + 5v

Magetsi okwanira: 7V

Zoyenera kuloledwa kudzera paulendo uliwonse: 8MA

Kutulutsa kwa TTL

Magetsi ochepera

Katswiri wa opaleshoni: 18ns

Nthawi Yosintha Kwambiri: 18ns

Kutentha kwa 0 C mpaka 70 ° C

Kutentha: -65 ° C mpaka 150 ° C

Makompyuta

Kusintha: Kupezeka mu malo ogwirira ntchito kapena pdip, gawo la mndandanda wa TTL.

14-pini Awiri-mzere (Dime): Amapereka kasinthidwe koyenera kuti mugwiritse ntchito.

Kudziyimira payekha 2 - Kubwezeretsa ndi Zipata: Imapanga zipata zinayi zotere.

Malingaliro okwanira: Phatikizani mochedwa kufalitsa kwa 10 NS, kutentha kogwiritsira ntchito kwa -55 ° C mpaka 125 ° C, ndi kuthamanga kwambiri mpaka 10 Mhz.

Zogwirira ntchito: Mphamvu yamagetsi (vcc) kuchokera pa 4.75v mpaka 5.25V, ndi magawo osiyanasiyana ndikutulutsa magawo apano ndi magetsi.

- Magetsi: Kufotokozera mwatsatanetsatane kwa magetsi, mphamvu zapamwamba komanso zotsika kwambiri, zowoneka bwino komanso zotsika kwambiri zomwe zidatulutsidwa pakadali pano, ndikupereka masamba.

Zofanana za IC 7408

74l08: Mtundu wotsika kwambiri wa suchky, umapereka mphamvu zofananira koma ndi mafuta ochepa omwe amagwiritsidwa ntchito ndi magetsi ochepa.

74HC08: Mtundu wothamanga kwambiri wa CMOS, wotchuka pogwira ntchito mothamanga kwambiri poyerekeza ndi mtundu wa TTL.

74HC08: Mtundu wothamanga kwambiri wa CMOS wogwirizana ndi TTL, kuphatikiza zabwino za ukadaulo wa CMOS ndikugwirizana ndi magetsi a TTL.

Malangizo a IC 7408

IC 7408 ili ndi zinayi ndi zipata, aliyense kulandira zizindikiro ziwiri.Chipata chilichonse chimagwira ntchito yoyambira komanso kugwirira ntchito, kutanthauza ngati zonse ziwirizi ndizokwera (mtundu wa 1), zotulutsa ndizokwera (1).Ngati kuyika kulikonse kuli kotsika (logiki 0), zotulukazo ndizochepa.Kutengera ndi mfundo za TTL (Transistor-transtictor-transicartor), IC 7408 imapanga chipata chilichonse, chomwe chimafalikira kudzera pazikhomo.Chifukwa chake, IC 7408, imadziwika ndi zipata zake zinayi ziwiri ziwirizi, zimagwiritsidwa ntchito kwambiri pamagetsi osiyanasiyana pamagetsi chifukwa chosinthasintha komanso kudalirika.

Momwe Mungagwiritsire Ntchito IC 7408

IC 7408 imagwiritsa ntchito mfundo ndi chipata, zomwe zimabwera m'mitundu itatu ya kuphatikiza.Kuphatikizika kulikonse kumapereka gawo lotulutsa kutengera mtundu wina wa mankhwala.Pankhaniyi, a ndi zipata ndi zipata zimachitika pogwiritsa ntchito omasulira.

Monga momwe chithunzithunzi chojambulira pansipa

Chip chili ndi madoko anayi olumikizidwa mkati mwanu, ndipo doko lirilonse akuchita chidwi ndi zothandizira ziwiri.Mwachitsanzo, doko 1 limagwira ntchito ya DNA pakati pa A1 ndi B1, kupereka zopereka ku terminal y1.

Tebulo loona la ndi chipata ndi motere

Kuti tifotokozere zomwe zili pamwambazi, tiyeni tikambirane za ntchito yosavuta ya ndi chipata, monga tikuwonetsera mu chithunzi chotsatira.

Kuti mumvetse bwino ntchito zamkati, titha kutanthauza kuzungulira kwa chipata ndi chipata chovuta mkati.

M'magawo awa, asitikali awiri a Nawora amapanga chipata ndi chipata.Matumba awiri azomwe amayendera ndi chipata kuchokera pansi pa maziko a omasulira awiriwa.Zolowazi zimalumikizana ndi mawonekedwe kuti asinthe mfundo zokhudzana ndi zolowa.Kutulutsa kwa chipata ndi chipata ndi mphamvu yamagetsi yolimba R1.Izi zimalumikizidwa kuti zikhale ndi D2 kudzera munthawi yolimbana ndi R1 kuti muzindikire State.

Gawo lokhazikika litha kugawidwa m'magawo otsatirawa

Gawo 1: MukasakanizidwaZotsatira zake, otumiza Q1 ndi Q2 achoka, ndikupangitsa kuti voliyumu yonse ya VCC ioneke kuti iwonekere.Popeza VCC yonse imapezeka kudutsa transtors, palibe dontho lamagetsi kutsutsana ndi R1, chifukwa chotulutsa.Chifukwa chake, polowa zikakhala zotsika, zotulukazo zimakhala zochepa.

Gawo lachiwiri: Mukapanikizika, tratsistor imodzi imatseguka, ndipo inayo imatseka.The trastistor amachita ngati gawo lalifupi, pomwe transistar imachita ngati bwalo lotseguka, ndikuwonetsa vCC yonse.Pakadali pano, mphamvu yamagetsi kudutsa otsutsa R1 ndi zero, kusunga zotulutsa pamlingo wotsika.Chifukwa chake, pamene kuyikako kuli kochepa, zotulutsa zimakhala zotsika.

Gawo 3: Mabatani onse awiri amakanikizidwa, onse omasulira, ndipo mphamvu yamagetsi ija ndi zero, zomwe zimapangitsa VCC yonse kuti iwoneke otsutsana R1.Popeza kuti zolaula ndizongokhala vodzi yotsutsana ndi R1, imakhala yayitali.Chifukwa chake, pofuna izi ndizokwera, zotulukazo ndi zapamwamba.

Mukatsimikizira mayiko atatu awa, zikuwoneka kuti zimakwaniritsa tebulo lotchulidwa pamwambapa.Kuphatikiza apo, lingaliro logiriki la ndi chipata likhoza kulembedwa pogwiritsa ntchito choonadi, i.e.

Kuphatikiza apo, ndikofunikira kudziwa kuti imodzi ndi pachipata chimodzi kapena kuphatikiza kwa madoko 2 ndi madoko sangathe kupanga zipata zosiyanasiyana.Komabe, ndipo zipata zimatha kugwiritsidwa ntchito kujambula zipata zina.Mwachitsanzo, chipata ndi chipata chitha kusinthidwa kukhala chipata cha n 20.Ndipo zipata zimachita mbali yofunika kwambiri popanga zipata zina zamitundu ngati Xnor ndi XOR.Koma, ngati chipata cha ndi chipata chimaphatikizidwa ndi chipata china cholocha, chimatha kupanga chipata chatsopano cholowa, monga kuphatikiza, kapena, etc.

Kukula kwa IC 7408

Komwe iC 7408 imagwiritsidwa ntchito

ICY 7408 IC, yotchedwanso IC 74l08, ili ndi mapulogalamu angapo.Amagwiritsidwa ntchito makamaka pazochitika zomwe zimafunikira komanso zokopa maopareshoni.Chip chili ndi madoko anayi a DNA, ndipo nkotheka kugwiritsa ntchito imodzi kapena madoko onse nthawi imodzi.

Chip chimagwiritsidwa ntchito mu machitidwe omwe amafunikira ntchito yayikulu kwambiri.Monga tanenapo kale, madoko omwe ali mkati mwa chip adapangidwa pogwiritsa ntchito ma doodiks a Scottky kuti achepetse madoko.Chifukwa chake, chip chimakhala choyenera kwambiri ndi ntchito zapamwamba.

Kuphatikiza apo, chip ichi chimapereka zotulutsa za TTL zofunikira ndi machitidwe ena.

Ntchito za IC 7408 zimaphatikizaponso

Zipata za digito

Makanema owerengera

Masauzande ambiri

Phidigu phidigu

Oyendetsa mabasi / olandila

Adilesi

Makonda

Zithunzi Zosanja

Deladi

Maboma osuntha

Opeza

Mabwalo a masamu

Pomaliza

Chip cha 7408 chimagwiritsidwa ntchito kwambiri mu kapangidwe ka digito ya digito ndi madera owongolera.Zimakhala zomveka komanso ntchito, ndikupereka zotulutsa zochepa pokhapokha ngati zizindikiro zonse ndizokwera, malingaliro ofunikira pamagawo a digito.Kuphatikiza apo, kusamalira tchipisi angapo 7408 kumalola kuti ntchito zizikwaniritsidwa bwino.

Komabe, pogwiritsa ntchito chip 2408, zomwe zikufunika:

Kusintha kwa magetsi kuyenera kukhala mkati mwa mitundu yomwe yafotokozedwa mu Chip.Kupitilira pamlingo uwu kumatha kubweretsa kuwonongeka kapena kuwonongeka kwa chip.

Kuthana ndi kukweza chizindikiro kuyenera kuganiziridwa.Ngati iyenera kulumikizidwa ndi zigawo zina kapena zipata zolondola, onetsetsani kuti kufala kwa siginelo.

Ubwenzi wa zizindikiro za zigawo umafunikanso kuganizira.M'miyala ina, zikwangwani zolowera zitha kukhala ndi mndandanda, zomwe ziyenera kulumikizidwa molingana ndi zomwe amapanga.

Chidule cha chiriri, chipi cha 7408 ndi chipata choyambirira chotsimikizira chomwe chip ndi chipata chomata chomera ndi zipata.Imagwiritsidwanso ntchito pojambula mapangidwe adera a digito.Chisamaliro chiyenera kulipidwa ku malo ophatikizira a m'manja, kuyika mphamvu, ndi ubale.