Fine-Grained Activation for Power Reduction in DRAM

This DRAM architecture optimization, which appears transparent to the memory controller, significantly reduces power consumption. With trivial additional logic, using the posted-CAS command enables a finer-grained selection when activating a portion of the DRAM array. Experiments show that, in a high-use memory system, this approach can reduce total DRAM device power consumption by up to 40 percent.