A memory controller for a dynamic random access memory (DRAM) is described. The memory controller of the present invention provides access to a memory array which uses DRAM banks. The memory controller is adaptable to various types of DRAM banks, such that the memory array is capable of having independent...http://www.google.com.hk/patents/US5307320?utm_source=gb-gplus-share專利 US5307320 - High integration DRAM controller
