Investigations on mos current mode logic using reversible gates indigital circuits

Abstract

iii newlineABSTRACT newlineThe growing demand in the transmission speeds of communication newlinesystems requires a very high-speed, low-power Very-Large-Scale Integration newline(VLSI) circuits for its efficient operation. The eminent VLSI technology in use newlineis Complementary Metal Oxide Semiconductor (CMOS). The performance of newlineCMOS technologies increases, in particular, with scaling. However, it does not newlinemeet both the speed and power requirements at the same time. MOS Current- newlineMode Logic (MCML) is used in high-speed circuits to overcome this constraint. newlineMCML has recently become a stronger digital circuit alternative to CMOS logic. newlineThe MCML circuits are the fundamental elements used in the design of logic newlinegates and flip-flops to design various digital circuits such as memory, clock newlinecircuits, and registers. It has only traditional logic gates that have separate input newlineand output terminals and cannot be referred to as reversible. A reversible logic newlinegate is a one-to-one mapping logic system with n-input and n-output. Heat is newlinedissipated by conventional combinational logic circuits during the processing of newlineinformation on each bit. However, it is not suitable for repetitive tasks. The newlinereversible logic is used to execute repeated operations with little heat dissipation newline