Generating access line voltages
AssigneeMicron Technology, Inc.
InventorsMartin Brox, C. Omar Benitez, Johnathan L. Gossi, Christopher John Kawamura
Life of this patent
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Abstract
Methods, systems, and devices for techniques for generating access line voltages are described. A system may use a first voltage supply and a second voltage supply that is configured to supply a lower voltage than the first voltage supply. The system may activate a first circuit to couple a node with the first voltage supply so that a first voltage develops on the node from the first voltage supply. The system may activate a second circuit to couple the node with the second voltage supply so that a second voltage that is lower than the first voltage develops on the node from the second voltage supply.
Claims19
A method, comprising:
- coupling a node with a first voltage supply for supplying a first supply voltage at a first level, the node coupled with a set of digit lines in a memory array, wherein the first voltage supply is configured to supply the first supply voltage to circuitry for driving a set of word lines in the memory array;
- developing, from the first voltage supply, a first voltage on the node coupled with the set of digit lines based at least in part on coupling the node with the first voltage supply;
- coupling, after developing the first voltage on the node, the node with a second voltage supply for supplying a second supply voltage at a second level;
- and
- developing, from the second voltage supply, a second voltage on the node coupled with the set of digit lines based at least in part on coupling the node with the second voltage supply.
An apparatus, comprising:
- a node coupled with a set of digit lines for a set of memory cells of a memory array;
- a first switching component configured to couple the node with a first voltage supply that is configured to supply a first supply voltage at a first level;
- an amplifier configured to activate the first switching component based at least in part on a first reference voltage, and wherein the first switching component is configured to transfer current from the first voltage supply to the node based at least in part on being activated;
- a second switching component configured to couple the node with a second voltage supply that is configured to supply a second supply voltage at a second level;
- and
- a circuit coupled with the node and configured to apply a voltage of the node to the set of digit lines.
An apparatus, comprising:
- a memory array comprising a set of digit lines;
- and
- one or more controllers configured to cause the apparatus to:
- couple a node with a first voltage supply for supplying a first supply voltage at a first level, the node coupled with the set of digit lines, wherein the first voltage supply is configured to supply the first supply voltage to circuitry for driving a set of word lines in the memory array;
- develop, from the first voltage supply, a first voltage on the node coupled with the set of digit lines based at least in part on coupling the node with the first voltage supply;
- couple, after developing the first voltage on the node, the node with a second voltage supply for supplying a second supply voltage at a second level;
- and
- develop, from the second voltage supply, a second voltage on the node coupled with the set of digit lines based at least in part on coupling the node with the second voltage supply.
Dependencies are inferred from the claim text.