Non-volatile memory device including on-die termination circuit

A storage device comprising:

• a memory controller;
• and
• a plurality of memory dies connected to the memory controller through a first channel, the plurality of memory dies being stacked in a vertical direction on a substrate,
• wherein each memory die of the plurality of memory dies comprises:
• a target die configured to be selected based on a chip enable signal and an address each received from the memory controller;
• a first non-target die configured not to be selected based on the chip enable signal and the address;
• and
• a second non-target die configured not to be selected based on the chip enable signal and the address,
• wherein the first non-target die is further configured to provide a first ODT resistance value based on a position of the target die, and
• wherein the second non-target die is further configured to provide a second ODT resistance value based on the position of the target die, the second ODT resistance value being different from the first ODT resistance value.

A non-volatile memory device comprising:

• an input/output (I/O) pin configured to transfer data to or receive data from a memory controller;
• a chip enable pin configured to receive a chip enable signal from the memory controller;
• and
• a plurality of memory dies connected in common to the I/O pin and the chip enable pin, the plurality of memory dies being stacked in a vertical direction on a substrate,
• wherein each memory die of the plurality of memory dies comprises a target die configured to be selected based on the chip enable signal and a plurality of non-target dies configured not to be selected based on the chip enable signal,
• wherein each memory die of the plurality of memory dies is configured to:
• determine operation states of the plurality of memory dies;
• select an on-die-termination (ODT) value based on the target die from among a plurality of ODT values included in an ODT value table, and
• provide the selected ODT value, and
• wherein the ODT value table is configured to store different ODT values based on the target die, with respect to each memory die of the plurality of memory dies.