PERFORMING LOGICAL OPERATIONS USING SENSING CIRCUITRY
First Claim
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1. An apparatus, comprising:
- an array of memory cells;
sensing circuitry coupled to the array of memory cells via a sense line, the sensing circuitry including a sense amplifier and not including an accumulator; and
a controller coupled to the array of memory cells and the sensing circuitry, the controller being configured to perform logical operations using the array of memory cells as an accumulator without transferring data out of the memory array and sensing circuitry.
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Abstract
The present disclosure includes apparatuses and methods related to performing logical operations using sensing circuitry. An example apparatus comprises an array of memory cells, sensing circuitry coupled to the array of memory cells via a sense line, and a controller coupled to the array of memory cells and the sensing circuitry. The sensing circuitry includes a sense amplifier and does not include an accumulator. The controller is configured to perform logical operations using the array of memory cells as an accumulator without transferring data out of the memory array and sensing circuitry.
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Citations
53 Claims
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1. An apparatus, comprising:
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an array of memory cells; sensing circuitry coupled to the array of memory cells via a sense line, the sensing circuitry including a sense amplifier and not including an accumulator; and a controller coupled to the array of memory cells and the sensing circuitry, the controller being configured to perform logical operations using the array of memory cells as an accumulator without transferring data out of the memory array and sensing circuitry. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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an array of memory cells; and a sense amplifier coupled to the array of memory cells via a sense line; and a controller coupled to the array of memory cells, the controller being configured to; store a first charge corresponding to a first operand of a logical operation to a plurality of memory cells coupled to a sense line; charge an access line for the plurality of the memory cells to a voltage to which the sense line is charged plus some portion of a threshold voltage of a memory cell access device; isolate the plurality of memory cells from the sense line; couple a memory cell storing a charge corresponding to a second operand of the logical operation to the sense line; and sense a voltage of the sense line as a result of the logical operation. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus, comprising:
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an array of memory cells; and a sense amplifier coupled to the array of memory cells via a sense line; and a controller coupled to the array of memory cells, wherein the controller is configured to; simultaneously store a first charge corresponding to a first operand of a logical operation to a memory cells coupled to a plurality of access lines and coupled to a same sense line; charge the plurality of access lines to voltage such that a data value of a first logic state will cause an access device coupled thereto to be turned-on, and such that a data value of a second logic state will cause the access device coupled thereto to be turned-off; and couple a memory cell storing a charge corresponding to a second operand of the logical operation to the sense line after the plurality of access lines are charged without an equilibration operation after charging the plurality of access lines. - View Dependent Claims (20)
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21. A method, comprising:
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storing a first charge corresponding to a first operand of a logical operation to a plurality of memory cells coupled to a sense line; charging an access line for the plurality of the memory cells to a voltage to which the sense line is charged plus some portion of a threshold voltage of a memory cell access device; isolating the plurality of memory cells from the sense line; coupling a memory cell storing a charge corresponding to a second operand of the logical operation to the sense line; and sensing a voltage of the sense line as a result of the logical operation. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method, comprising:
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storing a first charge corresponding to a first operand of a logical operation to memory cells including a corresponding access device coupled to a sense line and to different access lines; charging the different access lines to within a voltage to which the sense line is charged plus some portion of a threshold voltage of a memory cell access device; and modifying a voltage of the sense line with a second charge stored in a memory cell coupled to the sense line and to an access line other than the different access lines, the second charge corresponding to a second operand of the logical operation, the modified voltage of the sense line indicating a result of the logical operation. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method, comprising:
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storing a first charge corresponding to a complement of a first operand of a logical operation to a plurality of memory cells coupled to a sense line; charging access lines for the plurality of the memory cells to an equilibration voltage to which the sense line is charged plus some portion of a threshold voltage of a memory cell access device; isolating the plurality of memory cells from the sense line; coupling a memory cell storing a charge corresponding to a complement of a second operand of the logical operation to the sense line; and sensing a voltage of the sense line as a result of the logical operation. - View Dependent Claims (50, 51, 52, 53)
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Specification