Patent ID: 6111781
Filing Date: 2000-08-29
Classification: G11C

Abstract:
A magnetic random access memory array comprising:a plurality of first line groups, each of the plurality of the first line groups having a plurality of first lines placed in parallel and being electrically conductive;a plurality of second lines being perpendicular to the plurality of first lines and electrically conductive;a plurality of magnetic memory cells, one each placed on each intersection of the plurality of first lines and the plurality of second lines and being electrically coupled to a first line at the intersection;a reference line being parallel to the plurality of first lines and electrically conductive;a plurality of reference magnetic memory cells, one each placed on each intersection of the reference line and the plurality of second lines, and electrically coupled to the reference line;wherein each magnetic memory cell and each reference magnetic memory cell have magnetic layers separated by a non-magnetic layer; anda plurality of comparators, each comparator having a first input, a second input, and an output, the first input being coupled to the plurality of first lines in each first line group and the second input being coupled to the reference line.