A low-leakage twin-precision multiplier using reconfigurable power gating

A twin-precision multiplier that uses reconfigurable power gating is presented. Employing power cut-off techniques in independently controlled power-gating regions yields significant static leakage reductions when half-precision multiplications are carried out. In comparison to a conventional 8-bit tree multiplier, the power overhead of a 16-bit twin-precision multiplier operating at 8-bit precision has been reduced by 53% when reconfigurable power gating based on the SCCMOS power cut-off technique was applied.