Netlist, Inc.
MEMORY MODULE WITH LOCAL SYNCHRONIZATION AND METHOD OF OPERATION

Abstract:

A memory module is operable in a memory system with a memory controller. The memory module comprises a module control device to receive command signals from the memory controller and to output module C/A signals and data buffer control signals. The module C/A signals are provided to memory devices organized in groups, each group including at least one memory device, while the data buffer control signals are provided to a plurality of buffer circuits to control data paths in the buffer circuits, a respective buffer circuit corresponding to a respective group of memory devices. The plurality of buffer circuits are distributed across a surface of the memory module such that each data buffer control signal arrives at the plurality of buffer circuits at different points in time. The plurality of buffer circuits include clock regeneration circuits to regenerate a clock signal received from the module control device and to provide regenerated clock signals to respective groups of memory devices.