Method and apparatus for selective DRAM precharge

摘要

Apparatus and method for using a precharge command in which a plurality of address lines are individually used to specify which banks of memory cells within a memory device have an open row that is to be closed.

主权项

1. An apparatus comprising:
a memory device having a plurality of banks, each bank comprised of:
a plurality of memory cells organized into an array of rows and columns, wherein the memory device is capable of closing one or more open rows in one or more of the plurality of banks as individually specified in a precharge command, wherein the one or more open rows are closed to accommodate upcoming access commands; andcontrol logic coupled to the plurality of banks to control accesses made to each bank in response to commands received from an external device, wherein the commands include the precharge command in which address lines are individually used to specify the one or more of the plurality of banks having the one or more open rows that are to be closed.