A 4x4 and 8x8 bit multiplier is demonstrated based on the Chinese abacus. As comparing the simulation result of this work with the speed of the 4x4 and 8x8 bits Braun array multiplier, the delays of the 8-bit abacus multiplier are 14% and 7.5% less than that of Braun array multiplier with 0.35μm and 0.18μm technologies, respectively. Meanwhile, the power consumption of the 8-bit abacus multiplier is, respectively, less about 11.9% and 22.3% also.
