Non-volatile look-up table based FPGA implementations

Many emerging technologies are under investigation to realize alternatives for future scalable electronics. Memristor is one of the most promising candidates due to memrsitor's non-volatility, high integration density, near-zero standby power consumption, etc. Memristors have been recently utilized in non-volatile memory, neuromorphic system, resistive computing architecture, and FPGA to name but a few. An FPGA typically consists of configurable logic blocks (CLBs), programmable interconnects, configuration, and block memories. Most of the recent work done was focused on using memristor to build FPGA interconnects and memories. This paper proposes two novel FPGA implementations that utilize memristor-based CLBs and their corresponding automatic design flow. To illustrate the potential of the proposed implementations, they are benchmarked using Toronto 20, and compared with the state-of-the-art in terms of area and delay. The experimental results show that both the area (up to 4.24×) and delay (up to 1.46×) of the novel FPGAs are very promising.