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Novel 4RTD Logic Circuits
Hideaki YAMADA Takao WAHO
Publication
IEICE TRANSACTIONS on Electronics
Vol.E88-C
No.4
pp.699-704 Publication Date: 2005/04/01 Online ISSN:
DOI: 10.1093/ietele/e88-c.4.699 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on Fundamental and Application of Advanced Semiconductor Devices) Category: Nanomaterials and Quantum-Effect Devices Keyword: RTD, current-mode, ultrahigh-speed operation,
Full Text: PDF(962.4KB)>>
Summary:
Based on the similarity in current-voltage characteristics of resonant-tunneling diodes (RTDs) and tunneling-type superconductive Josephson junctions, novel current-mode logic circuits consisting of four RTDs have been proposed. NAND and NOR functions, as well as AND and OR, can be obtained in a simple circuit configuration. SPICE simulation showed that the present circuits can operate at a clock frequency as high as 200 GHz.
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