For digital circuit/system architectures, the triple modular redundancy (TMR) scheme is widely used to cope with circuit/system faults. The TMR scheme involves duplication of a circuit/system twice and the majority voter, based on Boolean majority logic, ensures that the architecture remains functional even if any copy of circuit/system may become faulty at any time. However, the fundamental as...

In the first part of this lecture, we analyze the noise sensitivity of the Majority function in more detail than last time. In the second part, we discuss the Majority is Stablest theorem, which says that among balanced functions for which each of the individual variables has low influence, the Majority function has the lowest noise sensitivity up to some small error. We also see some applicati...

A threshold-logic gate device consisting of subthreshold MOSFET circuits is proposed. The gate device performs threshold-logic operation, using the technique of current-mode addition and subtraction. Sample digital subsystems, i.e., adders and morphological operation cells based on threshold logic, are designed using the gate devices, and their operations are confirmed by computer simulation. T...

Abstract— Quantum dot Cellular Automata (QCA) is anticipated to allow for extremely dense nano-scale design and implementation of logic circuit over the Complementary Metal Oxide Semiconductor (CMOS). QCA has been considered as a promising alternative to CMOS technology for its lower power consumption, higher scale integration and higher switching frequency. Moreover, the basic element in QCA i...

Quantum-dot Cellular Automata (QCA) has low power consumption and high density and regularity. QCA widely supports the new devices designed for nanotechnology. Application of QCA technology as an alternative method for CMOS technology on nano-scale shows a promising future. This paper presents successful designing, layout and analysis of Multiplexer with a new structure in QCA technique. In thi...

As an emerging technology, Quantum-dot Cellular Automata (QCA) has been extensively analyzed in the technical literature for implementing logic circuits; in this technology, the basic combinational circuit is the majority voter with three inputs. In this paper, the design of a logic gate which implements any combinational function of at most three input variables is presented. This type of gate...

Quantum-dot Cellular Automata (QCA) has been widely advocated in nanotechnology as a response to the physical limits associated with complementary metal oxide semiconductor (CMOS) technology in atomic scales. Some of its peculiar features are its smaller size, higher speed, higher switching frequency, lower power consumption, and higher scale integration. In this technology, the majority and NO...

Quantum cellular automata (QCA) enables performing arithmetic and logic operations at the molecular scale. This nanotechnology promises high device density, low power consumption and high computational power. Unlike the CMOS technology where the ON and OFF states of the transistors represent binary information, in QCA, data is represented by the charge configuration. The primary and basic devic...