US 12,754,695 B2 · Multi-plane pre-read for sequential read performance

Abstract

Methods, systems, and devices for supporting improved sequential read performance using plane pre-read are described. A memory system may include a buffer configured to store data read from planes of a memory device. A host system may issue a read command for first data stored sequentially at a set of memory devices, and a controller may perform multi-plane read operations in response to the read command. For a last multi-plane read operation, data read from a first subset of planes from the memory device may be output to the host device, while data read from a second subset of planes from the memory device may be stored at the buffer. The host device may issue another read command for second data, and the controller may output the data stored at the buffer in response to the read command, without performing another read operation on the memory device.

Claims20

Dependent claims

A method, comprising:

receiving a first read command associated with first data stored sequentially at a set of memory devices;
performing a first read operation for a first memory device of the set of memory devices in response to the first read command, the first read operation comprising:
reading a plurality of planes of the first memory device based at least in part on identifying that a portion of the first data is stored within a first subset of the plurality of planes;
outputting second data corresponding to the portion of the first data stored within the first subset of the plurality of planes;
and
storing, at a buffer, third data associated with a second subset of the plurality of planes;
receiving a second read command associated with fourth data stored sequentially at the set of memory devices;
and
outputting the third data from the buffer based at least in part on the fourth data comprising the third data.

6 more elements

A memory system, comprising:

a set of memory devices, each memory device of the set of memory devices comprising a plurality of planes;
a controller configured to:
receive, from a host device, a first read command associated with first data stored sequentially at the set of memory devices;
read, in response to the first read command, a plurality of planes of a first memory device of the set of memory devices based at least in part on identifying that a portion of the first data is stored within a first subset of the plurality of planes;
and
output, to the host device, second data corresponding to the portion of the first data stored within the first subset of the plurality of planes of the first memory device;
and
a buffer configured to:
store, in response to the first read command, third data associated with a second subset of the plurality of planes of the first memory device;
and
output, in response to a second read command associated with fourth data stored at the set of memory devices, the third data based at least in part on the fourth data comprising the third data.

8 more elements

Dependencies are inferred from the claim text.

Multi-plane pre-read for sequential read performance

Life of this patent

Multi-plane pre-read for sequential read performance

Life of this patent

Abstract

Claims20