Data shifting
The present disclosure includes apparatuses and methods related to data shifting. An example apparatus comprises a first memory cell coupled to a first sense line of an array, a first isolation device located between the first memory cell and first sensing circuitry corresponding thereto, and a second isolation device located between the first memory cell and second sensing circuitry corresponding to a second sense line. The first and the second isolation devices are operated to shift data in the array without transferring the data via an input/output line of the array.
1. An apparatus, comprising:
a first memory cell and a second memory cell;
a first sense line coupled to the first memory cell;
a second sense line coupled to the second memory cell;
a first transistor device including a first node coupled to the first sense line;
a second transistor including a first node coupled to the second sense line;
a third transistor coupled between the first sense line and the second sense line;
a first sensing circuitry coupled to a second node of the first transistor;
a second sensing circuitry coupled to a second node of the second transistor; and
a fourth transistor coupled between the first node of the first transistor and the second node of the second transistor and including a control node coupled to a second control node supplying a second control signal.
2. The apparatus of claim 1 , wherein the third transistor is coupled between the second node of the first transistor and the first node of the second transistor.
3. The apparatus of claim 2 , wherein a control node of the third transistor is coupled to a first control node supplying a first control signal.
4. A method comprising:
reading out data from a first memory cell to a first sense line while disconnecting the first sense line from a second sensing circuitry to which the first sense line is coupled;
connecting the first sense line to a first sensing circuitry so that the first sensing circuitry amplifies the data on the first sense line to produce amplified data;
disconnecting the first sense line from the first sensing circuitry; and
storing the amplified data into a second memory cell through a second sense line coupled to the second memory cell.
5. The method of claim 4 , wherein the storing the amplified data into the second memory cell includes storing the amplified data into an accumulator.
6. The method of claim 4 , wherein the amplified data is stored in the second memory cell while the first memory cell is being accessed.
7. The method of claim 4 , wherein the second sensing circuitry is coupled to the first sense line via a first transistor having a first node coupled to the first sense line and a second node coupled to the second sense line.
8. The method of claim 7 , wherein disconnecting the first sense line from the first sensing circuitry includes enabling a second transistor having a first node coupled to the first node of the first transistor.
9. An apparatus, comprising:
a first word line;
first and second sense lines each intersecting the first word line;
first and second memory cells disposed at an intersection of the first word line and the first sense line and an intersection of the first word line and the second sense line;
first and second sensing circuits;
a first switch coupled between the first sense line and the first sensing circuit;
a second switch coupled between the second sense line and the second sensing circuit; and
a third switch coupled between the first sensing circuit and the second sense line.
10. The apparatus of claim 9 , wherein the third switch is turned OFF when each of the first and second switches is turned ON, and the third switch is turned ON when each of the first and second switch is turned OFF.
11. The apparatus of claim 9 , further comprising a fourth switch coupled between the first sensing circuit and the second sensing circuit.
12. The apparatus of claim 11 , wherein each of the third and fourth switches is turned OFF when each of the first and second switches is turned ON, and each of the third and fourth switches is turned ON when each of the first and second switches is turned OFF.
13. The apparatus of claim 9 , wherein the third switch is coupled to the first sensing line through the first switch.
14. The apparatus of claim 11 , wherein the fourth switch is coupled to the second sensing line through the second switch.
15. The apparatus of claim 9 , further comprising first and second accumulators provided for the first and second sensing circuits, respectively.
16. The apparatus of claim 9 , wherein the first and second accumulators are formed on pitch with memory cells of an array comprising the first and second memory cells.
17. An apparatus, comprising:
a first memory cell and a second memory cell;
a first sense line coupled to the first memory cell;
a second sense line coupled to the second memory cell;
a first transistor device including a first node coupled to the first sense line;
a second transistor including a first node coupled to the second sense line;
a third transistor coupled between the first sense line and the second sense line;
a first sensing circuitry coupled to a second node of the first transistor;
a second sensing circuitry coupled to a second node of the second transistor; and
wherein a control node of the first transistor and a control node of the second transistor are coupled to a third control node supplying a control signal.
18. An apparatus, comprising:
a first memory cell and a second memory cell;
a first sense line coupled to the first memory cell;
a second sense line coupled to the second memory cell;
a first transistor device including a first node coupled to the first sense line;
a second transistor including a first node coupled to the second sense line;
a third transistor coupled between the first sense line and the second sense line;
a first sensing circuitry coupled to a second node of the first transistor;
a second sensing circuitry coupled to a second node of the second transistor; and
wherein the first memory cell and the second memory cell are coupled to a same first word line.
19. An apparatus, comprising:
a first memory cell and a second memory cell;
a first sense line coupled to the first memory cell;
a second sense line coupled to the second memory cell;
a first transistor device including a first node coupled to the first sense line;
a second transistor including a first node coupled to the second sense line;
a third transistor coupled between the first sense line and the second sense line;
a first sensing circuitry coupled to a second node of the first transistor;
a second sensing circuitry coupled to a second node of the second transistor; and
a first accumulator coupled to the first sense line to temporarily store a data value on the first sense line.