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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1700

Title: Quaternary logic circuits in 2-μm CMOS technology
Authors: Shanbhag, Naresh R
Nagchoudhuri, Dipankar
Siferd, Raymond E
Visweswaran, Gangiakond S
Keywords: 2-μm CMOS technology
binary-to-quaternary
pseudo-NMOS circuits
quaternary sequential/storage logic array (QSLA)
Issue Date: 1990
Citation: Solid-State Circuits, IEEE Journal of, 25(3), 790 - 799p.
Abstract: Novel quaternary logic circuits, designed in 2-μm CMOS technology, are presented. These include threshold detector circuits with an improved output voltage swing and a simple binary-to-quaternary encoder circuit. Based on these, the literal circuits, the quaternary-to-binary decoder, and the quaternary register are derived. A novel scheme for improving the power-delay product of pseudo-NMOS circuits is developed. Simulations for an inverter indicate a 66% improvement over a conventional pseudo-NMOS circuit. Noise-margin and tolerance estimations are made for the threshold detectors. To demonstrate the utility of these circuits, a quaternary sequential/storage logic array (QSLA), based on the Allen-Givone algebra has been designed and fabricated. The prototype chip occupies an area of 4.84 mm2, is timed with a 2.2-MHz clock, and consumes 93 mW of power
URI: http://eprint.iitd.ac.in/dspace/handle/2074/1700
Appears in Collections:Electrical Engineering

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