A synchronous semiconductor storage device (e.g., synchronous DRAM) contains a memory cell array consisting of memory cells, which are arranged in a matrix form in accordance with rows and columns. The memory cell array is accessed using row addresses and column addresses, which are made in synchronization...http://www.google.es/patents/US6144617?utm_source=gb-gplus-sharePatente US6144617 - Synchronous semiconductor storage device
