Lan mooy diggante HCMOS ak LVCMOS?
Buñu sukkandikoo ci jëm kanam gi ak taxonomie xaralay sircuit buñ boole, CMOS, HCMOS, ak LVCMOS amul benn lëkkaloo bu yomb buy méngoo wala buy wecci. Lu moy loolu, dañuy forme sistem hierarchique buñ xaaj ci dimension yu wuute ak màndarga yuy jaxasoo.
Relation core bi mën nañu ko wax nii: LVCMOS du -generation bi ci topp HCMOS, waaye bànxaas bu mag la buñ xaaj ci "domaine voltage". Ci wàllu performance, aparey LVCMOS yi leegi dañu raw bu baax aparey HCMOS yu njëkk ya. Ñaari mbir yooyu bokk nañu ci konsept yu wuute ci dimension te dañu boole bu baax ci xaralay jamono jii.
1. Fondaasioŋ bu am solo: Xarala CMOS
Xaralay CMOS mooy nekk royuwaay ci bépp xeetu coppite bu ci topp. Màndargaam mooy jëfandikoo P-MOS ak N-MOSFET yuy mottali ngir sos inverter wala yeneen buntu logique, ñu def ci theorie zero consommation puissance statique. Bépp aparey HCMOS ak LVCMOS buñu wax ci fii dañu bokk màndarga bu am solo bii.
2. Yokkateg Xarala yu Bees yi sukkandiko ci jikkoom (Dimension bu njëkk bi)
Dimension boobu ñu ngi koy xaaj ci diir bi ak ci performance bi, loolu dafay wane yokkute yi am ci defar yi.
CMOS cosaan (misaal, Série 4000)
Man-man yi: Jëfandikoo pexe defar yu teel - ak dayo man-man yu yaatu ak kapasite parasit bu rëy. Dafay joxe voltage bu yaatu ci liggéey (3–15V) waaye dafay sonn lool ci yeexal yu yàgg ci tasaaroo (ci diggante ~100ns), gaawaay bu woyof, ak kàttan dawal bu néew doole.
HCMOS (CMOS bu gaaw -)
Man-man yi: Soo wàññilee dimensioŋu tranzistor bi ci anam wu méngoo, kapasite parasit bi ak kapasite buntu bi ci aparey yi dañuy wàññeeku bu baax. Yooyu yokkute dafay wàññi bu baax yeexal yi ci tasaaroo (ba ci ~10ns) ci noonu lañuy wéy di jëfandikoo doole bu néew. Kàttanu dawal bimuy génne itam dafa gëna yokk.
Positioning akademik: HCMOS dafay màndargaal node xarala yu am jaar-jaar. Mooy màndargaal barab bi xaralay CMOS amee ba noppi raw gaawaayu logique TTL bi gëna mag ci jamono jooju, dafa wane njariñ yu mat sëkk yu CMOS ci wàllu performance ak konsommasioŋ kuuraŋ yépp. Representant bi gëna mag mooy 5V-serie 74HC biy dox. Dafay am solo lool ñu xamni HCMOS mooy abréviation bu CMOS bu gaawaay bu kawe, nekkul CMOS bu am voltage bu kawe. Ci jëfandikoo gi, bariwul luñuy jëfandikoo kàddu CMOS Voltage bu kawe; su ko jaree, dañu ko wara gàttal HVCMOS.
3. Xeetu architecture bu sukkandiko ci tension biy joxe (beneen dimension cross-)
Dimension bii dafay méngoo ak voltage biy joxe, te dafay jaxasoo ak dimension biñ sukkandikoo ci performance-.
5V CMOS
Dafa amaale CMOS yu njëkk ya ak aparey HCMOS yu bari (lu melni, 74HC series). Lii mooy domaine voltage biñ njëkka yamale.
CMOS bu woyof -
Maanaam: Tur la wuñ jagleel bépp famiy logique CMOS bu am voltage liggéey bu gëna néew 5V standard. Li waraloon mu jëm ca kanam mooy gëna mëna jëfandikoo energie dynamique, ndax consommation dynamique bu benn sircuit mingi méngoo ak kaare voltage biy joxe.
Subcategorie: LVCMOS ñu ngi koy xaaj ci voltage ngir sos ay norme yu bari:
3.3V (LVCMOS): misaal, série 74LVC
2.5V, 1.8V, 1.5V, 1.2V, ak ñoom seen: Bu node yi di gëna dem, voltage yiy liggéey dañuy wéy di wàññeeku.
Bokk ak boole ci jamono jii
Taarixu Subordination: Ci taarixu yokkuteg xarala yu bees, HCMOS (lu melni, 74HC) benn subclass la ci xaralay CMOS.
Jaxasoo ci dimension yi: HCMOS (dafay wane gaawaay) ak LVCMOS (dafay wane voltage) ay konsept yu lalu ci xeeti xaaj yu wuute lañu. Benn puce mën na bokk ci ñaari kategori yi benn yoon.
Ci misaal, sérii 74HC mooy 5V HCMOS.
Serie 74LVC yi 3.3V LVCMOS lañu, fekk gaawaayam dafa ëpp bu serie 74HC bi. Kon 74LVC LVCMOS la, te mën na ànd ak màndarga "gaawaay bu kawe".
Mboolem jamono jii ak jëm kanam gi ci terminologie:
Tay ci submicron ak deep-submicron CMOS, voltage bu woyof nekk na faraata ngir mëna am gaawaay bu rëy ak jëfandikoo kuuraŋ bu woyof. Kon, bépp sircuit buñ boole muy CMOS dafay am "voltage bu woyof".
"High-speed" nekkatul etiket buñ jagleel benn sérii produit waaye nekk na màndarga bu ñépp bokk ci xaralay CMOS yu bees yi. Ci wàllu njàng ak ci wàllu xam-xam, dañuy faral di jëfandikoo kàddu "HCMOS" ngir wax ci bépp sircuit CMOS bu am doole bu lalu ci anam yu bees, te li ëpp ci sircuit yooyu bokk nañu ci kategori LVCMOS.
Ci jamono jii:
CMOS: Ni tur umbrella ngir xarala yi, ci siñaal yiy génn ci oscillateur kristal, dafay wax ci siñaal yiy génn ci onde carrée bu am benn -.
HCMOS: Ci anam wu yaatu, dafay fësal màndarga yi am ci sircuit CMOS yu bees yi.
LVCMOS: Dafay leeral bu baax standard electrik bu voltage biy dox bu woyof.
Kon sooy wax ci "3.3V, siñaal CMOS bu gaawaay", li gëna dëggu ci wàllu xam-xam mooy: Siñaal bii dafa méngoo ak LVCMOS (lu melni, LVC) standard electrik te dafay wane màndarga yu gaawaay yu bari ci liggéey CMOS yu bees yi. Bi mu nekkee xarala bu am solo, legacy core HCMOS-yokkateg performance ci process scaling-ñu ko jëlee ci ndono te raw ko ci bépp xaralay LVCMOS bu bees. Ñaari konsept yooyu bokk nañu ci dimension yu wuute ci theorie, te boole nañu leen ci jëfandikoo gi.