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Multiple-valued current-mode arithmetic circuits based on redundant positive-digit number representations

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3 Author(s)
S. Kawahito ; Dept. of Electr. & Electron. Eng., Toyohashi Univ. of Technol., Japan ; K. Mizuno ; T. Nakamura

High-speed arithmetic algorithms and circuits based on redundant positive-digit number representations are described. To perform two-input radix-2 addition, for example, the proposed algorithm uses digit set {0, 1, 2, 3}. The addition and subtraction can be performed speedily by a constant time independent of the wordlength. The n-digit multiplication and division can he performed in a time proportional to log2 n and n, respectively. The basic arithmetic circuits are designed and implemented with multiple-valued current-mode circuits. The multiple-valued arithmetic circuits using the proposed algorithms exhibit good speed and compactness in VLSI implementation

Published in:

Multiple-Valued Logic, 1991., Proceedings of the Twenty-First International Symposium on

Date of Conference:

26-29 May 1991