Resumen
Field-programmable gate arrays (FPGA) are integrated circuits, an array of logic blocks placed in an infrastructure of interconnections, which can be programmed at three distinct levels, the function of the logic cells, interconnections between cells and inputs and outputs. FPGA are highly versatile devices that offer the designer a wide range of design choices and options. However, this potential power necessitates a suite of tools in order to design a system. They enable engineers to mitigate effects entailed by the well-known tradeoff in computing between cost and performance. There are four classes of FPGA, based on the way they are configured. Configurable circuits can only be configured once after which no further changes are effected. Reconfigurable circuits can be configured several times and are divided into two sub-classes, static and dynamic. In Fine-grained circuits, the basic cell is simple and in coarse-grained circuits, the basic cell is more complex. Researchers are looking into the possibility of stacking two-dimensional FPGA circuits.