Isimiso kanye nobubanzi bemikhiqizo ye-EMMC ne-UFS

I-EMMC (Ikhadi Lemidiya Elishumekiwe)yamukela isixhumi esibonakalayo esijwayelekile se-MMC, futhi ihlanganisa ukuminyana okuphezulu kwe-NAND Flash kanye nesilawuli se-MMC ku-chip ye-BGA.Ngokwezici ze-Flash, umkhiqizo uhlanganise ubuchwepheshe bokulawula i-Flash, okuhlanganisa ukutholwa kwephutha nokulungiswa, ukusula nokubhala okumaphakathi kwe-flash, ukuphathwa kabi kwebhulokhi, ukuvikela ukuhla kwamandla kanye nobunye ubuchwepheshe.Abasebenzisi akudingeki bakhathazeke ngezinguquko zenqubo ye-flash wafer kanye nenqubo ngaphakathi komkhiqizo.Ngesikhathi esifanayo, i-chip eyodwa ye-EMMC yonga isikhala esiningi ngaphakathi kwebhodi lomama.

Kalula nje, eMMC=Nand Flash+controller+standard package

Isakhiwo sonke se-EMMC siboniswa esithombeni esilandelayo:

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I-eMMC ihlanganisa Isilawuli Se-Flash ngaphakathi kuyo ukuze iqedele imisebenzi efana nokusula nokubhala ukulinganisa, ukuphathwa kabi kwebhulokhi, nokuqinisekiswa kwe-ECC, okuvumela uhlangothi Lomsingathi ukuthi lugxile kumasevisi ongqimba olungaphezulu, okuqeda isidingo sokucutshungulwa okukhethekile kwe-NAND Flash.

I-eMMC inezinzuzo ezilandelayo:

1. Yenza lula ukwakheka kwenkumbulo yemikhiqizo yomakhalekhukhwini.
2. Isivinini sokubuyekeza siyashesha.
3. Sheshisa ukuthuthukiswa komkhiqizo.

I-EMMC ejwayelekile

I-JEDD-JESD84-A441, eshicilelwe ngoJuni 2011: v4.5 njengoba kuchazwe ku-Embedded MultiMediaCard (e•MMC) Product Standard v4.5.I-JEDEC iphinde yakhipha i-JESD84-B45: Embedded Multimedia Card e•MMC), izinga likagesi le-EMMC v4.5 (inguqulo 4.5 amadivayisi) ngoJuni 2011. NgoFebruwari 2015, i-JEDEC yakhipha inguqulo 5.1 yezinga le-EMMC.

Omakhalekhukhwini abaningi abajwayelekile abaphakathi nebanga eliphakathi basebenzisa imemori ye-eMMC5.1 flash enomkhawulokudonsa wethiyori ongu-600M/s.Ijubane lokufunda elilandelanayo lingu-250M/s, futhi isivinini sokubhala esilandelanayo ngu-125M/s.

Isizukulwane esisha se-UFS

I-UFS: I-Universal Flash Storage, singayibheka njengenguqulo ethuthukisiwe ye-EMMC, okuyimojula yokulondoloza uhlu ehlanganisa ama-flash memory chips amaningi, ukulawula okuyinhloko, kanye nenqolobane.I-UFS yenza iphutha lokuthi i-EMMC isekela kuphela ukusebenza kwe-half-duplex (ukufunda nokubhala kufanele kwenziwe ngokuhlukana), futhi ingakwazi ukufeza ukusebenza kwe-duplex egcwele, ukuze ukusebenza kuphindwe kabili.

I-UFS yayihlukaniswe yaba yi-UFS 2.0 kanye ne-UFS 2.1 ngaphambili, futhi izindinganiso zayo eziyisibopho zejubane lokufunda nokubhala ithi HS-G2 (High speed GEAR2), kanti i-HS-G3 ingokuzithandela.Amasethi amabili wamazinga angasebenza ngemodi ye-1Lane (isiteshi esisodwa) noma i-2Lane (isiteshi esikabili).Isivinini sokufunda nokubhala esingafinyelelwa yifoni ephathekayo sincike ezingeni lememori ye-UFS flash kanye nenani lamashaneli, kanye nekhono lomprosesa lokusebenzisa inkumbulo ye-UFS flash.Ukusekelwa kwesixhumi esibonakalayo sebhasi.

I-UFS 3.0 yethula ukucaciswa kwe-HS-G4, futhi umkhawulokudonsa wesiteshi esisodwa uyakhuphuka ube ngu-11.6Gbps, okuwukusebenza kabili kwe-HS-G3 (UFS 2.1).Njengoba i-UFS isekela ukufunda nokubhala okukabili kweziteshi ezimbili, umkhawulokudonsa wesixhumi esibonakalayo we-UFS 3.0 ungafinyelela ku-23.2Gbps, okungu-2.9GB/s.Ngaphezu kwalokho, i-UFS 3.0 isekela izingxenye ezengeziwe (i-UFS 2.1 iyisi-8), ithuthukisa ukusebenza kokulungiswa kwamaphutha futhi isekela imidiya yakamuva ye-NAND Flash flash.

Ukuze kuhlangatshezwane nezidingo zamadivayisi we-5G, i-UFS 3.1 inezikhathi ezingu-3 isivinini sokubhala sesizukulwane sangaphambilini sokugcinwa kwe-flash okunenjongo evamile.Isivinini sedrayivu esingu-1,200 megabytes ngesekhondi (MB/s) sithuthukisa ukusebenza okuphezulu futhi sisize ukuvimbela ukugcina kumthamo ngenkathi ulanda amafayela, okukuvumela ukuthi ujabulele ukuxhumeka okubambezeleke okuphansi kwe-5G emhlabeni oxhumene.

Isivinini sokubhala singafika ku-1,200MB/s (izivinini zokubhala zingahluka ngomthamo: 128 gigabytes (GB) kufika ku-850MB/s, 256GB kanye no-512GB kufika ku-1,200MB/s).

I-UFS iphinde isetshenziswe ku-solid-state U disk, 2.5 SATA SSD, Msata SSD neminye imikhiqizo, i-UFS ithatha indawo ye-NAND Flash ukuze isetshenziswe.

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Isikhathi sokuthumela: May-20-2022