Semiconductor memory device storing memory characteristic information, memory module and memory system having the same, and operating method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsHAK-SOO YU, JOO-SUN CHOI, HONG-SUN HWAN
Life of this patent
Estimating the term…
Abstract
A semiconductor memory device includes a cell array including a plurality of regions accessed by first addresses, where the plurality of regions including at least two groups of regions having respectively different memory characteristics. The device further includes a nonvolatile array for nonvolatile storage of group information indicative of which of the least two groups each of the plurality of regions belongs.
Claims30
A semiconductor memory device comprising:
- a cell array including a plurality of regions accessed by first addresses, the plurality of regions including at least two groups of regions having respectively different memory characteristics;
- and
- a nonvolatile array for nonvolatile storage of group information indicative of which of the least two groups each of the plurality of regions belongs.
A semiconductor memory device comprising:
- a cell array including a plurality of regions;
- a nonvolatile array for nonvolatile storage of conversion information for conversion of first addresses denoting physical addresses of the plurality of regions to second addresses based on memory characteristics of the plurality of regions;
- and
- a decoder for accessing the nonvolatile array in response to a signal from an external device.
A memory module comprising:
- a module board;
- at least one memory chip, which is assembled on the module board and includes a cell array having a plurality of regions, the plurality of regions including at least two groups of regions having respectively different memory characteristics;
- and
- a memory management chip, which is assembled on the module board, manages a memory operation of the at least one memory chip, and comprises a nonvolatile array for nonvolatile storage of group information indicative of which of the least two groups each of the plurality of regions belongs.
A memory controller for communicating with a semiconductor memory device including a cell array having a plurality of regions, the plurality of regions including at least two groups of regions having respectively different memory characteristics, the memory controller comprising:
- an address converter for receiving group information indicative of which of the at least two groups each of the plurality of region belongs, and converting a first address indicative of a physical address of each of the plurality of regions to a second address based on the group information;
- and
- an address storing unit for storing conversion information for the conversion of addresses.
A memory controller for communicating with a semiconductor memory device including a cell array having a plurality of regions, the memory controller comprising:
- an address storing unit for storing conversion information for conversion of first addresses indicating physical addresses of the plurality of regions to second addresses based on memory characteristics of the plurality of regions;
- and
- a decoder for receiving a second address from a host and accessing the address storing unit by decoding the second address,
- wherein a first address corresponding to the second address from the host is output to the semiconductor memory device.
Dependencies are inferred from the claim text.