Kazhinji RAM memory (Random Access Memory) iyo inowanzoshandiswa mumakombiyuta inotyisa. Izvi zvinoreva kuti kana iwe ukavhara kombiyuta, ruzivo rwose runochengetwa muyeuchidzo chips rwakarasika. Kusiyana neizvi, kukurumidza kukuyeuka hakusi kusinganzwisisi zvinoreva kuti ruzivo rwakachengetwa mumhando iyi yekuyeuka teknolojia inochengetwa apo simba rinotemwa. Mashoko anonyorwa uye akadzimwa kubva kune aya anoyeuchidza chips anogadzirwa nemagetsi kwete nenzira ye mechanical - yakafanana neyekare uye inononoka EEPROM (tekombiyuta inokanganisika yakarongeka yekuverenga-Read Only Memory). Iyi fomu yehutano yakagadzirwa nehutano yakasiyana neyekuchengetedza magetsi sekushanda zvakaoma ; ruzivo munyaya ino rwakachengetedzwa uchishandisa magnetism. Nyaya yakawanda ye flash flash inoshandiswa nhasi NAND - iri zita rinotorwa kubva kune rimwe gedhi rinogadzirwa nhandisi NAND muteveri nokuti mhepo yekushandiswa inoshandisa gedhi rinopinda mOSFET transistors inorongwa nenzira imwecheteyo.
Chinoshanda sei?
Sezvakatsanangurwa kare, flash memory inoshanduka inopinda gate transistors. Izvo zvinorongwa mu gridhi. Panzvimbo pokutenderera kwakafanana kune rimwe suwo, flash NAND memori ine masuo maviri. Kuva nemasuo maviri kunoita kuti zvikwanisike 'kuchengeta' gasi pakati pemasuo maviri kuitira kuti rirege kubvisa - izvi zvakakosha uye zvinogadzirisa chero ruzivo rwakachengetwa rusingadi. Zvechokwadi, ichi 'chakavhara' voltage (iyo inomiririra ruzivo) pachigoni inogona kugara muhurumende yakavharwa kwemakore akawanda - kana kusvika iwe wabvisa memori. Mashoko akachengetedzwa akadzimwa nekudhonza gasi kubva pamasuwo maviri nekushandisa sachigaro chakasvibirira chipimo chinenge chisina kufanana nekombiyuta yekuyeuka.
Common Flash based based Electronic Devices
Kune zvakawanda zvemagetsi zvemagetsi anoshandiswa anoshandisa NAND flash memory sekuchengetedzwa. Zvimwe zvekunze zvigadziriswa zvinoshandisa zvakare NAND flash memory. Mhando ye hardware yaunogona kuuya nayo iyo inoshandisa rudzi urwu rwekombiyuta inosanganisira:
- MP3 player
- Portable Media Players ( PMP s)
- Flash card / stick memory like MicroSD uye MicroSDHC
- USB Flash drives
- Smartphones / Mafoni
- Mamwe madivhidhiyo emedia
Kubatsirwa uye Kukanganisika
Kungofanana nekombiyuta yose, pane zvakagadzikana uye zvinoshandiswa pakushandisa iyo. Chimwe chezvinhu zvakanyatsojeka zvekushandisa flash-based memory (uye zvishandiso zvinoshandisa iyo) ndezvokuti hapana majekitiki anogona kuparara kana nyore nyore kutambura. Nokuda kwemakwikwi e-MP3 nedzimwe mhando dzinogona kutamba mimhanzi ye digital, iyi ndiyo yakakwana yekuchengetedza yakasvibiswa iyo yakasvibiswa nekushungurudza, kugadzikana kwemagetsi, etc. Chiyeuchidzo chekare chinodhura uye chinogona kuva chisarudzo chakanaka chekuchengetedza - kune vose vanogadzira yezvigadzirwa zve hardware nevatengi vanoshuva kutenga zvinyorwa zvekuchengetedza zvakadai semakadhi makadhi zvakare.
Zvisinei, flash memory inokanganisa kwayo. Nekutanga, ine nguva yekupedzisira yehupenyu mune nhamba dzenguva iyo deta inogona kunyorwa kunzvimbo imwechete yekuyeuka. Izvi zvinozivikanwa seP / E maitiro (purogiramu-nyore miitiro) uye kazhinji inenge yakawanda inenge 100 000 inowanikwa / inonyora. Mushure meizvi, iyo yekuchengetedza mafashoni ichaderera mukutendeseka sezvo nhamba yeNAND ichiyeuka. Izvi zvinoputika zvinogona kuve zvinyorwa pavaraidza MP3 uye zvimwe zvishandiso zvinoshandiswa uchishandisa firmware iyo inoparadzira iyi yekuverenga / kunyora maitiro kunze kwekuita kuti chigadziro chinopera makore akawanda pasi peshandiswa. Chimwe chinokonzera kufungidzira chiyeuchidzo hachiri kuenderana neTB (Terabyte) kukwanisa kwatinoona mumagetsi ekufambisa zvakaoma uye saka teknolojia iyi haigoni kushandiswa (asi zvakadaro) yekuchengetedza mashoma pamwero mukuru.