文件名称：Introduction to Magnetic Random-Access Memory
文件大小：91.71MB
文件格式：PDF
更新时间：2022-01-09 07:57:59
随机存储器
ASCONTEXTforthisbook,computermemoryhierarchyrangesfromcache(fastestandmostexpensive)tomainmemory,tomassstorage(slowestandleastexpensive).Cachememory,immediatelyaccessiblebythecentralprocessingunit,isusuallystaticrandom-accessmemory(SRAM).Mainmemoryisusuallydynamicrandom-accessmemory(DRAM);likeSRAM,itrequirespowertomaintainitsmemorystate,butadditionallymustbeelectricallyrefreshed,typicallyevery64ms(1).Massstorageisexemplifiedbynonvolatileflashmemory(oftheNANDandNORvarieties)andmagnetichard-diskdrives.