Abstract:
A resistive memory device includes a memory cell array including a memory cell connected between a first signal line and a second signal line, an instance of control circuitry configured to generate a write control signal to control a data writing operation performed on the memory cell and a read control signal to control a data reading operation of reading data stored in the memory cell, a write circuit configured to supply a write current to support the data writing operation, a read circuit configured to supply a read current to support the data reading operation, a column decoder circuit configured to electrically connect the write circuit to the first signal line, based on the write control signal; and a row decoder circuit configured to electrically connect the read circuit to the second signal line, based on the read control signal.
Abstract:
In a method of operating a memory device having a cross point array structure, the memory device includes multiple tiles, and each of the tiles includes memory cells of multiple layers. The method includes accessing, in a first tile, multiple memory cells of a first layer disposed in a region where at least one first line and at least one second line cross each other, accessing, in the first tile, multiple memory cells of a second layer disposed in a region where at least one first line and at least one second line cross each other, and accessing, after the memory cells of the multiple layers of the first tile are accessed, multiple memory cells included in a second tile. Related memory devices and memory systems are also discussed.
Abstract:
A method for operating a memory device includes sensing a change in temperature of the memory device, adjusting a level of a reference current for a read operation, and reading data from memory cells of the memory device based on the adjusted level of the reference current. The level of the reference current is adjusted from a reference value to a first value when the temperature of the memory device increases and is adjusted from the reference value to a second value when the temperature of the memory device decreases. A difference between the reference value and the first value is different from a difference the reference value and the second value.
Abstract:
In a method of operating a memory device having a cross point array structure, the memory device includes multiple tiles, and each of the tiles includes memory cells of multiple layers. The method includes accessing, in a first tile, multiple memory cells of a first layer disposed in a region where at least one first line and at least one second line cross each other, accessing, in the first tile, multiple memory cells of a second layer disposed in a region where at least one first line and at least one second line cross each other, and accessing, after the memory cells of the multiple layers of the first tile are accessed, multiple memory cells included in a second tile. Related memory devices and memory systems are also discussed.