Title :
Design of Ternary Logic Combinational Circuits Based on Quantum Dot Gate FETs
Author :
Karmakar, Sanjay ; Chandy, John A. ; Jain, Faquir C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Connecticut, Storrs, CT, USA
Abstract :
In this paper, we discuss logic circuit designs using the circuit model of three-state quantum dot gate field effect transistors (QDGFETs). QDGFETs produce one intermediate state between the two normal stable ON and OFF states due to a change in the threshold voltage over this range. We have developed a simplified circuit model that accounts for this intermediate state. Interesting logic can be implemented using QDGFETs. In this paper, we discuss the designs of various two-input three-state QDGFET gates, including NAND- and NOR-like operations and their application in different combinational circuits like decoder, multiplier, adder, and so on. Increased number of states in three-state QDGFETs will increase the number of bit-handling capability of this device and will help us to handle more number of bits at a time with less circuit elements.
Keywords :
combinational circuits; field effect transistors; logic design; logic gates; quantum dots; NAND-like operations; NOR-like operations; adder; circuit elements; circuit model; decoder; multiplier; quantum dot gate FET; ternary logic combinational circuit design; three-state quantum dot gate field effect transistors; threshold voltage; two-input three-state QDGFET gates; Integrated circuit modeling; Inverters; Logic gates; Multivalued logic; Quantum dots; Threshold voltage; Transistors; Integrated circuit; VLSI; quantum dot gate field effect transistor (QDGFET); ternary logic;
Journal_Title :
Very Large Scale Integration (VLSI) Systems, IEEE Transactions on
DOI :
10.1109/TVLSI.2012.2198248
