Systems with memory devices, modules and memory devices with variable physical dimensions, memory formats, and operational capabilities

摘要

An apparatus is provided that includes a buffering device that allows a plurality of memory devices, memory devices having various physical dimensions and memory formats, to be used in an industry-standard memory module format. The buffering device includes memory interface circuitry and at least one first in, first out (FIFO) or multiplexer circuit. The apparatus further includes a parallel bus coupling the buffering device to the plurality of memory devices. The parallel bus includes a plurality of individual control lines each coupling memory interface circuitry to a corresponding one of a plurality of first subsets of the plurality of memory devices. The parallel bus further includes a plurality of individual data channels, each of which couples at least one FIFO circuit or multiplexer circuit to a corresponding one of the plurality of second subsets of the plurality of memory devices.