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A 32*32-bit multiplier using multiple-valued MOS current-mode circuits

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4 Author(s)
Kawahito, Shoji ; Dept. of Electron. Eng., Tohoku Univ., Sendai, Japan ; Kameyama, M. ; Higuchi, T. ; Yamada, H.

A 32*32-bit multiplier using multiple-valued current-mode circuits has been fabricated in 2- mu m CMOS technology. For the multiplier based on the radix-4 signed-digit number system, 32*32-bit two's complement multiplication can be performed with only three-stage signed-digit full adders using a binary-tree addition scheme. The chip contains about 23600 transistors and the effective multiplier size is about 3.2*5.2 mm/sup 2/, which is half that of the corresponding binary CMOS multiplier. The multiply time is less than 59 ns. The performance is considered comparable to that of the fastest binary multiplier reported.<>

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:23 ,  Issue: 1 )