Introduction: ACTEL has been serving in the US military and aviation industries for over 20 years and is prohibited from being sold externally. Some domestic enterprises in special fields purchase military grade models through other channels. At present, ACTEL is gradually shifting towards civilian and commercial use. In addition to the anti fuse series, it has also launched the ProASIC3 series, which can be repeatedly erased (for the automotive, industrial control, and military aviation industries). The following are the unique features of ACTEL compared to other FPGA companies (ALTERA, Xilinx, lattice).