Computer System, Computer Science, Hardware.
to the controller. The row address i is called a RAS (Row Access Strobe) request. The column address j is called a CAS (Column Access Strobe) request. Notice that the RAS and CAS requests share the same DRAM address pins. 通常将DRAM地址以 行i列j 二维组织以降低针脚数量，缺点是需要两次查询才能定位一个存储单元，每个单元存储8bit。 DRAM chips are