US 2011/0087834 A1 · Memory Package Utilizing At Least Two Types of Memories

Abstract

A memory system and methods for memory manage are presented. The memory system includes a volatile memory electrically connected to a high-density memory; a memory controller that expects data to be written or read to or from the memory system at a bandwidth and a latency associated with the volatile memory; a directory within the volatile memory that associates a volatile memory address with data stored in the high-density memory; and redundant storage in the high-density memory that stores a copy of the association between the volatile memory address and the data stored in the high-density memory. The methods for memory management allow writing to and reading from the memory system using a first memory read/write interface (e.g. DRAM interface, etc.), though data is stored in a device of a different memory type (e.g. FLASH, etc.).

Claims20

Dependent claims

A memory system comprising:

a volatile memory electrically connected to a high-density memory;
a memory controller that expects data to be written or read to or from the memory system at a bandwidth and a latency associated with the volatile memory;
a directory within the volatile memory that associates a volatile memory address with data stored in the high-density memory;
and
redundant storage in the high-density memory that stores a copy of the association between the volatile memory address and the data stored in the high-density memory.

2 more elements

Dependencies are inferred from the claim text.

Memory Package Utilizing At Least Two Types of Memories

Life of this patent

Memory Package Utilizing At Least Two Types of Memories

Life of this patent

Abstract

Claims20