Patent ID: 8159886

Claim:
A memory device including a plurality of memory chips, comprising: each memory chip that has a memory part, which stores control data concerning the memory chip, a plurality of banks, functions or operation of the plurality of banks being controlled based on the control data stored in the memory part, inside thereof, a fixed data memory part storing fixed data concerning the memory chip, and an input/output part connected to the memory part and the fixed data memory part, wherein the input/output part is allowed to exchange data with an external device through connection of a bus between the input/output part and the external device when the bus is connected to the input/output part, and the control data stored in the memory part is allowed to be written in and read out, the fixed data stored in the fixed data memory part is allowed to be transferred to the memory part via the input/output part to be written in the memory part, and the fixed data transferred from the fixed data memory part is allowed to be included in the control data.