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On Bifunctional Polymorphic Gates Controlled by a Special Signal

RŮŽIČKA Richard. On Bifunctional Polymorphic Gates Controlled by a Special Signal. WSEAS Transactions on Circuits, vol. 7, no. 3, pp. 96-101. ISSN 1109-2734.
Czech title
K polymorfním hradlům se dvěma funkcemi řízeným speciálním signálem
Type
journal article
Language
english
Authors
Keywords
hardware engineering, digital circuits, CMOS logic gates, polymorphic electronics, VLSI, reconfigurable digital circuits
Abstract
Polymorphic digital circuits are circuits composed of polymorphic (multifunctional) as well as ordinary gates. In addition to its standard logic function (such as NAND), a polymorphic gate exhibits another logic function which is activated under a specific condition, for example, when Vdd, temperature, illumination or a special signal reaches a certain level. This paper describes existing polymorphic gates and their features, benefits and limits and discusses special class of polymorphic gates - bifunctional polymorphic gates controlled by a special signal. These gates seem to be most flexible polymorphic gates. In the paper a new two-input bifunctional gate for polymorphic circuits is proposed. The gate produces NAND or XOR function according to a special signal. The proposed gate is effective in terms of area overhead - it consists of 9 transistors only, while corresponding circuit employing conventional gates consists of more than 10 transistors.
Published
2008
Pages
96-101
Journal
WSEAS Transactions on Circuits, vol. 7, no. 3, ISSN 1109-2734
Publisher
World Scientific and Engineering Academy
BibTeX
@ARTICLE{FITPUB8625,
   author = "Richard R\r{u}\v{z}i\v{c}ka",
   title = "On Bifunctional Polymorphic Gates Controlled by a Special Signal",
   pages = "96--101",
   journal = "WSEAS Transactions on Circuits",
   volume = 7,
   number = 3,
   year = 2008,
   ISSN = "1109-2734",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/8625"
}
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