eMMC (Embedded Multi Media Card)nakweere interface ọkọlọtọ MMC jikọtara ọnụ, ma tinye NAND Flash njupụta dị elu na njikwa MMC na mgbawa BGA.Dịka njiri mara Flash si dị, ngwaahịa a agụnyela teknụzụ njikwa Flash, gụnyere nchọta na mezie njehie, ihichapụ na ide ihe nfe, njikwa ngọngọ ọjọọ, nchebe mgbada na teknụzụ ndị ọzọ.Ndị ọrụ adịghị mkpa ichegbu onwe ha maka mgbanwe na usoro wafer flash na nhazi n'ime ngwaahịa ahụ.N'otu oge ahụ, otu mgbawa eMMC na-echekwa ohere karịa n'ime motherboard.
N'ikwu ya n'ụzọ dị mfe, eMMC=Nand Flash+controller+ngwungwu
Egosiri ihe owuwu eMMC n'ozuzu ya na foto a:
eMMC na-ejikọta Flash Controller n'ime ya iji wuchaa ọrụ dị ka ihichapụ na ide nha nhata, njikwa ngọngọ ọjọọ, na nkwenye ECC, na-ekwe ka akụkụ ndị ọbịa lekwasị anya na ọrụ elu-layer, na-ewepụ mkpa maka nhazi pụrụ iche nke NAND Flash.
eMMC nwere uru ndị a:
1. Mee ka nhazi ebe nchekwa dị mfe nke ngwaahịa ekwentị.
2. The update ọsọ bụ ngwa ngwa.
3. Mee ngwa ngwa mmepe ngwaahịa.
ọkọlọtọ eMMC
JEDD-JESD84-A441, nke e bipụtara na June 2011: v4.5 dị ka akọwara na agbakwunyere MultiMediaCard (e•MMC) Product Standard v4.5.JEDEC weputara JESD84-B45: Embedded Multimedia Card e•MMC), ọkọlọtọ eletrik maka eMMC v4.5 (ụdị 4.5 ngwaọrụ) na June 2011. Na February 2015, JEDEC wepụtara ụdị 5.1 nke ọkọlọtọ eMMC.
Imirikiti ekwentị mkpanaaka etiti etiti na-eji eMMC5.1 flash memory yana bandwit nke 600M/s.Ọsọ agụ n'usoro bụ 250M/s, yana ọsọ ide usoro bụ 125M/s.
Ọgbọ ọhụrụ nke UFS
UFS: Nchekwa Flash Universal, anyị nwere ike were ya dị ka ụdị eMMC dị elu, nke bụ ụdị nchekwa nchekwa nke nwere ọtụtụ ibe nchekwa flash, njikwa ukwu na cache.UFS na-eme ka ntụpọ ahụ na eMMC na-akwado ọrụ ọkara duplex (agụ na ide ga-arụ ọrụ iche iche), ma nwee ike nweta ọrụ duplex zuru ezu, ya mere enwere ike ịgbatị arụmọrụ ahụ okpukpu abụọ.
E kewara UFS n'ime UFS 2.0 na UFS 2.1 na mbụ, na ụkpụrụ amanyere ha maka ịgụ na ide ọsọ bụ HS-G2 (High Speed GEAR2), na HS-G3 bụ nhọrọ.Ụkpụrụ abụọ a nwere ike na-agba ọsọ na 1Lane (otu ọwa) ma ọ bụ 2Lane (dual-channel).Ego ole ịgụ na ide ọsọ ekwentị mkpanaaka nwere ike nweta na-adabere na ọkọlọtọ UFS flash memory na ọnụọgụ ọwa, yana ike onye nrụpụta nwere iji ebe nchekwa UFS.Nkwado interface ụgbọ ala.
UFS 3.0 na-ewebata nkọwa HS-G4, na bandwidth otu ọwa na-abawanye ruo 11.6Gbps, nke bụ arụmọrụ HS-G3 (UFS 2.1) ugboro abụọ.Ebe UFS na-akwado ịgụ na ide bidirectional ọwa abụọ, bandwidth interface nke UFS 3.0 nwere ike iru 23.2Gbps, nke bụ 2.9GB/s.Na mgbakwunye, UFS 3.0 na-akwado akụkụ ndị ọzọ (UFS 2.1 bụ 8), na-eme ka arụmọrụ mmezi njehie dị mma ma na-akwado mgbasa ozi flash flash NAND kacha ọhụrụ.
Iji gboo mkpa nke ngwaọrụ 5G, UFS 3.1 nwere ugboro 3 ọsọ ederede nke ọgbọ gara aga nke nchekwa nchekwa ebumnobi n'ozuzu.Ọsọ nke 1,200 megabytes kwa nkeji (MB/s) na-eme ka arụmọrụ dị elu dịkwuo elu ma na-enyere aka igbochi nbudata mgbe ị na-ebudata faịlụ, na-enye gị ohere ịnụ ụtọ njikọ dị ala nke 5G na ụwa ejikọrọ.
Dee ọsọ ruo 1,200MB/s (oso dee nwere ike ịdị iche site na ikike: 128 gigabytes (GB) ruo 850MB/s, 256GB na 512GB ruo 1,200MB/s).
A na-ejikwa UFS na steeti U disk siri ike, 2.5 SATA SSD, Msata SSD na ngwaahịa ndị ọzọ, UFS na-anọchi NAND Flash maka ojiji.
Oge nzipu: Mee-20-2022
