Field Programmable Gate Arrays (FPGAs) are pre-fabricated silicon devices that can be electrically programmed to become almost any kind of digital circuit or system. First modern era FPGA was introduced almost two and a half decades ago. That FPGA contained very small number of logic blocks and I/Os. Since then, FPGAs have witnessed an enormous expansion both in terms of capacity and market. They have come a long way from the devices that were once considered only as glue logic to the devices that can now implement complete applications. FPGAs are now widely used for implementing digital circuits in a wide variety of markets including telecommunications, automotive systems and consumer electronics.
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