The signal margin of a small array 2T/2C memory is increased by writing
the ferroelectric load capacitors on the bit lines to complementary
states. A ferroelectric memory array includes rows and columns of 2T/2C
memory cells, wherein each column of the memory array includes a first
memory subcell having a first node coupled to a word line, a second node
coupled to a first bit line, and a third node coupled to a first plate
line, the first memory cell being poled in a first direction; a second
memory subcell having a first node coupled to the word line, a second
node coupled to a second bit line, and a third node coupled to the first
plate line, the second memory cell being poled in a second direction; a
first load subcell having a first node coupled to the word line, a second
node coupled to the first bit line, and a third node coupled to a second
plate line, the first load cell being poled in the first direction; and a
second load subcell having a first node coupled to the word line, a
second node coupled to a second bit line, and a third node coupled to the
second plate line, the second load cell being poled in the second
direction.