Dickstein Shapiro Morin & Oshinsky LLP
Write data masking for higher speed drams
A method and apparatus for masking data written to a memory device that reduces the effective write cycle time of the memory device is disclosed. Firing of the column selects is pre-empted, thereby masking data to be written to a memory device. By pre-empting the column selects, the margin required for disabling a write driver can be eliminated, thereby reducing the effective write cycle. Additionally, data masking can be performed on a per-byte basis by associating independent column selects with each data byte on multi-byte wide devices, e.g., x16 or x32.
Micron Technology, Inc.
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Wen Christopher K. Kevin J.
Li Morzano Ryan