Memory with deferred fractional row activation

摘要

Row activation operations within a memory component are carried out with respect to subrows instead of complete storage rows to reduce power consumption. Further, instead of activating subrows in response to row commands, subrow activation operations are deferred until receipt of column commands that specify the column operation to be performed and the sub-row to be activated.

主权项

1. A method of operation within a memory component, the method comprising:
receiving, during a first command reception interval, a row command and a row address, the row address indicating a row of storage cells within the memory component; decoding the row address upon receiving the row command to select a row of storage cells within the memory component; receiving, during a second command reception interval and after decoding the row address has commenced, a first column command and a first column address, the first column address indicating a first column of data within a first subrow of storage cells included within the row of storage cells, and the first column command indicating a memory access operation to be carried out with respect to the first column of data; and transferring a first subrow of data, including the first column of data, from the first subrow of storage cells to a first set of sense amplifiers in response to the first column command.