Controllers including separate input-output circuits for mapping table and buffer memory, solid state drives including the controllers, and computing systems including the solid state drives

A solid state drive comprising:

• a controller configured to provide a logical address of associated data through a first input-output circuit at a first speed and configured to provide the associated data through a second input-output circuit at a second speed, the controller being connected to the first input-output circuit and the second input-output circuit, the first input-output circuit being physically separated from the second input-output circuit and the second speed being greater than the first speed;
• a first volatile memory comprising a mapping table, the mapping table being connected to the controller through the first input-output circuit and configured to map the logical address of the associated data that is provided through the first input-output circuit to a physical address of the associated data;
• and
• a second volatile memory comprising a buffer memory, the buffer memory being connected to the controller through the second input-output circuit and configured to buffer the associated data that is provided through the second input-output circuit,
• wherein a storage capacity of the mapping table is greater than a storage capacity of the buffer memory,
• wherein the first input-output circuit includes a first number of first input-output lines,
• wherein the second input-output circuit includes a second number of second input-output lines, and the first number is different from the second number, and
• wherein a second parasitic capacitance of the second input-output circuit connected to the second volatile memory is different than a first parasitic capacitance of the first input-output circuit connected to the first volatile memory.