<span id="bkt1l"><u id="bkt1l"></u></span>
  • <bdo id="bkt1l"><dfn id="bkt1l"><menu id="bkt1l"></menu></dfn></bdo>

  • <tbody id="bkt1l"><nobr id="bkt1l"><address id="bkt1l"></address></nobr></tbody>
      1. <menuitem id="bkt1l"></menuitem>
        <bdo id="bkt1l"><strong id="bkt1l"><menu id="bkt1l"></menu></strong></bdo>
      2. <menuitem id="bkt1l"><dfn id="bkt1l"><menu id="bkt1l"></menu></dfn></menuitem>

        Flash Module with DRAM Buffer

        The purpose of designing an additional DRAM chip into the flash module is to increase both performance and endurance.

        Performance :

        A DRAM chip in a flash module has exactly the same function as a cache in a hard disk.  Whilst the flash module is in operation the controller throws small data into the DRAM chip for immediate responses; the DRAM chip acts as a directory that assists the controller to allocate data to the assigned positions.  Therefore it shortens the response time and increases the performance.

        Endurance :

        Comparing Flash Storage to DRAM, DRAM does not have any limitation of program/erase cycles, whereas Flash Storage does.  Every time when the controller tries to program a sector of data into Flash Storage, it needs to erase a whole block of Flash before re-programming it.  However with the DRAM buffer small data can be collected to a certain amount before delivering to the Flash Storage which reduces the program/erase times to the flash chips, and therefore increases the endurance.

         

        夜间污小视频