Low Leakage High Speed Carbon-Nano Tube Field Effect Transistor Based Look Up Table

This paper proposes an energy efficient Carbon Nanotube Field Effect Transistor (CNFET) based architecture of 4-input Look-up Table (LUT), a building block of Field programmable gate arrays. HSPICE simulation based on Berkeley Predictive Technology Model (BPTM) for 32 nm channel length device shows that for Iso-area, the CNFET based LUT is 98% more leakage power efficient than the LUT implemented in the bulk CMOS. Similarly, at operating frequency of 250 MHz and at supply voltage of 0.9 V compared to bulk CMOS LUT, the proposed Hybrid LUT and CNFET LUT provides 36% and 53% improvement in power delay product respectively.