US Patent 9761312 FeRAM-DRAM hybrid memory

Methods, systems, and devices for operating a ferroelectric memory cell or cells are described. One method includes determining whether to access a first memory cell of a first memory cell array or a second memory cell of a second memory cell array, where a first digit line coupled to the first memory cell is coupled to a paging buffer register including a sense amplifier. The method further includes operating a transfer gate based at least in part on determining to read the second memory cell of the second memory cell array, where the transfer gate is configured to selectively couple a second digit line coupled to the second memory cell to the paging buffer register through the first digit line.