Coupling conductive lines of a memory device during self-refresh
AssigneeMicron Technology, Inc.
InventorsWonjun Choi, Hyun Yoo Lee
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Abstract
Apparatuses, systems, and methods for self-refresh in a memory device are disclosed. The memory device receives a plurality of voltages at respective conductive lines of a plurality of conductive lines of the memory device. During at least a portion of a self-refresh mode, the memory device may conductively couple first and second conductive lines of the plurality of conductive lines. For example, the memory device may conductively couple a first conductive line that receives VDD and a second conductive line that receives VDDQ. The voltages may be received via respective rails of a power management integrated circuit (PMIC).
Claims27
An apparatus comprising:
- a memory configured to:
- receive, at a first conductive line, a first voltage provided by a power management circuit and further receive, at a second conductive line, a second voltage provided by the power management circuit;
- enter a self-refresh mode responsive to a self-refresh entry command;
- and
- conductively couple the first conductive line and the second conductive line responsive to the self-refresh entry command.
An apparatus comprising:
- a power source configured to provide a plurality of voltages via a plurality of power rails;
- and
- a memory configured to receive the plurality of voltages at a plurality of conductive lines coupled to respective power rails of the plurality of power rails, wherein the memory is configured to conductively couple a first conductive line of the plurality of conductive lines and a second conductive line of the plurality of conductive lines when the memory is in a self-refresh mode.
A system comprising:
- a command/address (CA) bus;
- a memory controller configured to provide a self-refresh entry command via the CA bus;
- a power management circuit configured to provide a first voltage via a first rail and to provide a second voltage via a second rail;
- and
- a memory configured to enter a self-refresh mode responsive to receiving the self-refresh entry command via the CA bus and to conductively couple a first conductive line and a second conductive line when the memory is in the self-refresh mode, the first conductive line coupled to the first rail and the second conductive line coupled to the second rail.
A method comprising:
- receiving, at a first conductive line of a memory, a first voltage;
- receiving, at a second conductive line of the memory, a second voltage;
- detecting a self-refresh entry command;
- entering, by the memory, a self-refresh mode responsive to the self-refresh entry command;
- and
- conductively coupling the first conductive line and the second conductive line when the memory is in the self-refresh mode.
Dependencies are inferred from the claim text.