Name
Abstract | ||
|---|---|---|
This paper proposes a detailed design analysis of sequential circuits for quantum-dot cellular automata (QCA). This analysis encompasses flip-flop (FF) devices as well as circuits. Initially, a novel RS-type FF amenable to a QCA implementation is proposed. This FF extends a previous threshold-based configuration to QCA by taking into account the timing issues associated with the adiabatic switching of this technology. The characterization of a D-type FF as a device consisting of an embedded wire is also presented. Unique timing constraints in QCA sequential logic design are identified and investigated. An algorithm for assigning appropriate clocking zones to a QCA sequential circuit is proposed. A technique referred to as stretching is used in the algorithm to ensure timing and delay matching. This algorithm relies on a topological sorting and enumeration step to consistently traversing only once the edges of the graph representation of the QCA sequential circuit. Examples of QCA sequential circuits are provided. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1016/j.mejo.2007.03.013 | Microelectronics Journal |
Keywords | Field | DocType |
timing issue,sequential circuit,quantum-dot cellular automaton,qca sequential logic design,novel rs-type ff,qca sequential circuit,qca implementation,detailed design analysis,d-type ff,analysis encompasses flip-flop,unique timing constraint,bistable,implementation,algorithm,logic design,quantum dot cellular automata,emerging technology,cellular automaton,switching,quantum electronics,graph representation,network analysis,nanoelectronics,quantum dot,sequential circuits,logic circuit,sequential design,circuit design | Logic synthesis,Cellular automaton,Logic gate,Sequential logic,Topological sorting,Circuit design,Quantum dot cellular automaton,Algorithm,Electronic engineering,Engineering,Sequential analysis | Journal |
Volume | Issue | ISSN |
38 | 4-5 | Microelectronics Journal |
Citations | PageRank | References |
19 | 1.41 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| J. Huang | 1 | 32 | 2.57 |
| M. Momenzadeh | 2 | 80 | 6.74 |
| F. Lombardi | 3 | 232 | 24.13 |