A low-leakage 2.5GHz skewed CMOS 32b adder for nanometer CMOS technologies

A 32b parallel prefix adder demonstrates leakage-current-reduction capabilities of skewed CMOS logic. Sub-100nA leakage currents and single-cycle activation from standby mode is achieved using multi-tox logic gates in 90nm CMOS technology. The data path contains improved sense amplifier-based flip-flops and skewed CMOS logic adapted latches.