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Memory systems, modules, and methods for improved capacity

  • US 10,459,660 B2
  • Filed: 11/04/2015
  • Issued: 10/29/2019
  • Est. Priority Date: 11/20/2014
  • Status: Active Grant
First Claim
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1. A memory system comprising:

  • a controller component to issue memory commands and communicate data via a controller interface; and

    memory modules, including a first memory module and a second memory module, each memory module having;

    a module data interface connected to the controller interface via passive point-to-point data connections that extend from the module data interface to the controller interface, the passive point-to-point data connections to communicate a subset of the data;

    at least one delay-configurable data buffer coupled to the module data interface to communicate the subset of the data;

    memory devices coupled to the at least one delay-configurable data buffer to store and convey the subset of the data;

    a command input port connected to the controller interface via a command connection separate from the passive point-to-point data connections, the command input port to receive the memory commands from the controller component;

    a command output port;

    a command relay circuit coupled between the command input port and the command output port, the command relay circuit to relay the memory commands received from the controller component away from the memory module on the command output port; and

    command logic coupled to the command input port to receive the memory commands from the controller component, the command logic to issue device commands to the memory devices responsive to the memory commands.

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