Apparatuses and methods for performing compare operations using sensing circuitry
AssigneeMicron Technology, Inc.
InventorTroy A. Manning
Life of this patent
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Abstract
The present disclosure includes apparatuses and methods related to performing compare and/or report operations using sensing circuitry. An example method can include charging an input/output (IO) line of a memory array to a voltage. The method can include determining whether data stored in the memory array matches a compare value. The determination of whether data stored matches a compare value can include activating a number of access lines of the memory array. The determination can include sensing a number of memory cells coupled to the number of access lines. The determination can include sensing whether the voltage of the IO line changes in response to activation of selected decode lines corresponding to the number of memory cells.
Claims21
1-20. (canceled)
A method of operating a system, comprising:
- receiving at a memory device, and from a host, a request to perform a compare function;
- in response to receiving the request, determining whether a voltage of an input/output (IO) line of a memory array changes in response to simultaneous activation of a number of selected decode lines and a number of access lines corresponding to at least two memory cells of the memory array.
A system comprising:
- an array of memory cells;
- control circuitry coupled to the array and configured to cause:
- precharging of an input/output (IO) line of the array to a precharge voltage;
- and
- a determination whether the precharge voltage of the IO line changes in response to simultaneous activation of a number of decode lines and a number of access lines corresponding to at least two memory cells of the array.
A system comprising:
- a memory device configured to cause:
- a charging of an input/output (IO) line of an array to a voltage;
- and
- sensing circuitry coupled to the array to sense whether the voltage of the IO line changes in response to activation of selected decode lines of the array to determine whether data stored in at least one of at least two memory cells of the array matches a compare value,
- wherein:
- the selected decode lines are simultaneously activated in association with sensing the at least two memory cells of the array;
- and
- the sensing circuitry comprises:
- a number of primary sense amplifiers coupled to respective pairs of complementary sense lines;
- and
- a number of accumulators coupled to the number of primary sense amplifiers.
Dependencies are inferred from the claim text.