Integrated circuit memory devices including a single data shift block between first and second memory banks

An integrated circuit memory device comprising:

• an integrated circuit substrate;
• first and second spaced-apart memory banks in the integrated circuit substrate;
• a pad block in the integrated circuit substrate between the first and second spaced-apart memory banks;
• first and second input/output units in the integrated circuit substrate between the first and second spaced-apart memory banks, that are coupled to the pad block to receive input data from external of the integrated circuit memory device via the pad block and to transmit output data to external of the integrated circuit memory device via the pad block;
• a delay locked loop in the integrated circuit substrate between the first and second spaced-apart memory banks, that is responsive to an external clock signal to generate an internal clock signal;
• an interface logic block in the integrated circuit substrate between the first and second spaced-apart memory banks that is responsive to the internal clock signal to control the first and second memory banks and the input/output block in response to the internal clock signal;
• and
• a single data shift block in the integrated circuit substrate that is located between the pad block and one of the first and second spaced-apart memory banks, that is coupled to the first input/output unit by a first plurality of lines, to the second input/output unit by a second plurality of lines and to the first memory bank by a third plurality of lines and to the second memory bank by a fourth plurality of lines, and that is controlled by the interface logic block, wherein the third plurality is an integer multiple of the first plurality and the fourth plurality is an integer multiple of the second plurality.

An integrated circuit memory device comprising:

• a first memory bank, an interface logic block, first and second input output units, a pad block, a data shift block and a second memory bank that are serially arranged in an integrated circuit substrate in a first direction, the first and second input/output units being spaced-apart from one another along a second direction that is orthogonal to the first direction, with a delay locked loop therebetween, the integrated circuit substrate being free of a data shift block between the pad block and the first memory bank;
• wherein the input/output block is connected to the pad block to receive input data from external of the integrated circuit memory device via the pad block and to transmit output data to external of the integrated circuit memory device via the pad block;
• wherein the delay locked loop is responsive to an external clock signal to generate an internal clock signal;
• wherein the interface logic block is responsive to the internal clock signal to control the first and second memory banks, the input/output block and the data shift block in response to the internal clock signal;
• and
• wherein the data shift block is connected to the input/output block by a first plurality of lines and to both of the first and second memory banks by a second plurality of lines that is an integer multiple of the first plurality.