Memory system having a unidirectional bus and method for communicating therewith

摘要

A memory and a method for communicating therewith are implemented having a unidirectional write bus for writing to memory cells within a plurality of memory cell groups. Local bitlines associated with each of the memory cell groups communicate write data to the associated memory cell. Global bitlines coupled to all of the memory cells are decoupled from the local bitlines during a write operation. Following a write operation the local bitlines are restored by a precharge operation during which the global and local bitlines are also decoupled.