TOP_DOWN: top-down, is a hierarchical and structured modern integrated circuit design method. Construct the system with a high level of abstraction first, and then design the lower level unit. Bottom-up design flow: A design method that builds the bottom unit first, and then builds a larger system from the bottom unit.
FPGA Virtex-II Family 1M Gates 11520 Cells 650MHz 0.15um Technology 1.5V 896-Pin FCBGA
FPGA Spartan-3A Family 700K Gates 13248 Cells 667MHz 90nm Technology 1.2V 400-Pin FBGA
FPGA Spartan-3A Family 700K Gates 13248 Cells 667MHz 90nm Technology 1.2V 256-Pin FTBGA
FPGA Virtex-II Family 1M Gates 11520 Cells 750MHz 0.15um Technology 1.5V 896-Pin FCBGA
Xilinx TQFP
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