关键词: 配置芯片, FPGA, MTM反熔丝

Abstract: In order to improve the reliability of field programmable gate array (FPGA) configuration chip in space and reduce the impact of single event upset effect on it, based on  0.18 μm 1P6M anti-fuse process designs a high reliability configuration chip, which uses metal to metal (MTM) anti-fuse as the storage unit. This configuration chip has a capacity of 512 kBits, the power supply voltage is 3.0~3.6 V and the maximum operating frequency is 50 MHz in the same FPGA configuration mode. Because the MTM anti-fuse storage unit has natural radiation resistance and the data output latch adopts the dual interlock storage structure, the configuration chip has a high radiation resistance and is more suitable for the space application environment. In addition to space application of power supply system common cause in the process of electricity power supply of the slope range is wide, the electricity in the configuration chip reset circuit adopts RC reset and voltage detection reset to constitute the dual mode of reset circuit, can adapt the circuit to the complex power on environment, to further improve the reliability of the circuit.

Key words: configurationchip, FPGA, MTManti-fuse