A low-power 16×16-b parallel multiplier utilizing pass-transistor logic

Abstract

This paper describes a low-power 16/spl times/16-b parallel very large scale integration multiplier, designed and fabricated using a 0.8 /spl mu/m double-metal double-poly BiCMOS process. In order to achieve low-power operation, the multiplier was designed utilizing mainly pass-transistor (PT) logic circuits. The inherent nonfull-swing nature of PT logic circuits were taken full advantage of, without significantly compromising the speed performance of the overall circuit implementation. New circuit implementations for the partial product generator and the partial-product addition circuitry have been proposed, simulated, and fabricated. Experimental results showed that the worst case multiplication time of the test chip is 10.4 ns at a supply voltage of 3.3 V, and the average power dissipation is 38 mW at a frequency of 10 MHz.