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

Abstract

Solid state drives may include a controller, a mapping table and a buffer memory. The controller provides a logical address of associated data through a first input-output unit at a first speed and provides the associated data through a second input-output unit at a second speed. The controller may be connected to the first input-output unit and the second input-output unit. The mapping table may be connected to the controller through the first input-output unit. The buffer memory may be connected to the controller through the second input-output unit. The first input-output unit may be physically separated from the second input-output unit. The first speed may be different from the second speed.