A memory device that is comprised of a dynamic random access memory (DRAM)
capacitor and a nitride read only memory (NROM) transistor. The memory
device provides multiple modes of operation including a DRAM mode using
the capacitor and a non-volatile random access memory mode using the NROM
transistor. The device is comprised of two source/drain regions between
which a gate insulator layer is formed. A control gate, coupled to a word
line, is formed on top of the gate insulator. The DRAM capacitor is
coupled to one of the source/drain regions while the second source/drain
region is coupled to a bit line that is eventually coupled to a sense
amplifier for reading the state or states of the memory device.