Tsev > Exhibition > Ntsiab lus

eDRAM

Mar 14, 2019

Embedded DRAM (eDRAM) yog kev siv cov cim random-access (DRAM) rau tib qhov ploj tuag los yog ntau tus chip module (MCM) ntawm daim ntawv thov kev sib xyuas (ASIC) lossis microprocessor. eDRAM tus nqi-ib-me ntsis dua thaum piv rau cov khoom siv sib tw DRAM uas siv lwm lub cim xeeb, tiamsis qhov kev ua tau zoo ntawm kev tso cov eDRAM rau tib lub nti raws li tus neeg ua haujlwm yuav ua rau muaj kev tsis zoo ntawm ntau cov ntawv.


Muab lub cim xeeb ntawm ASIC lossis processor tso cai rau ntau lub tsheb npav thiab ntau dua cov kev khiav hauj lwm, thiab vim muaj ntau dua DRAM sib piv nrog SRAM, ntau dua kev nco tau muab tso rau me me chips yog siv eDRAM es tsis txhob siv eSRAM. eDRAM yuav tsum muaj cov kauj ruam ntxiv nrog cov cim SRAM, uas yog tus nqi nce, tab sis qhov 3x chaw txuag ntawm eDRAM nco txog cov nqi kev lag luam thaum ib qho cim tseem ceeb ntawm kev siv lub cim xeeb.


Nco ntsoov eDRAM, zoo ib yam li DRAM puas ntsoog, yuav tsum tau rov ua kom lub hlwb nco, uas ntxiv tsis yooj yim. Txawm li cas los xij, yog hais tias lub cim xeeb ua tus ntaiv refreshed nrog lub eDRAM nco, qhov seem ntawm ASIC kho qhov cim xeeb zoo li ib qho yooj yim SRAM hom xws li hauv 1T-SRAM. Nws tseem ua tau los siv cov qauv kev tsim vaj tse kom txo tau qhov kev ua haujlwm tshiab ntawm EDRAM caches.


eDRAM siv ntau yam khoom, xws li IBM's POWER7 processor, Intel's Haswell CPUs nrog GT3e integrated graphics, ntau yam qus consoles thiab lwm yam khoom, xws li Sony lub PlayStation 2, Sony's PlayStation Portable, Nintendo's GameCube, Nintendo Wii, Nintendo Wii U, Apple Inc. 's iPhone, Microsoft lub Zune HD, thiab Microsoft lub Xbox 360.