Fundamental logics based on two phase clocked adiabatic static CMOS logic

This paper demonstrates some fundamental logic gates employing two phase clocked adiabatic static CMOS logic (2PASCL) circuit techniques. We design and simulate NOT, NAND, NOR, and XOR logic gates on the basis of the 2PASCL topology using SPICE implemented using 0.18 µm CTX CMOS technology. For NOT circuit, analytical and simulation values are compared. From the simulation results, we find that 2PASCL inverter logic can save up to 97% of dissipated energy as compared to that with a static CMOS logic at transition frequencies of 10 to 100 MHz. Further, the power dissipation is the lowest when compared with other proposed simple adiabatic logic inverters. 2PASCL also achieves the highest fan-out performance. The results indicate that 2PASCL technology can be advantageously applied to low power digital devices operated at low frequencies, such as radio-frequency identifications (RFIDs), smart cards, and sensors.