Description
Third Generation Field-Programmable Gate Arrays – Abundant flip-flops – Flexible function generators – On-chip ultra-fast RAM The XC4000 families of Field-Programmable Gate Arrays (FPGAs) provide the benefits of custom CMOS VLSI, while avoiding the initial cost, time delay, and inherent risk of a conventional masked gate array. Dedicated high-speed carry-propagation circuit – Wide edge decoders The XC4000 families provide a regular, flexible, programmable architecture of Configurable Logic Blocks (CLBs), – Hierarchy of interconnect lines interconnected by a powerful hierarchy of versatile routing – Internal 3-state bus capability resources, and surrounded by a perimeter of program- – Eight global low-skew clock or signal distribution mable Input/Output Blocks (IOBs).
