Monostable-Bistable Transition Logic Elements: Threshold Logic vs. Boolean Logic Comparison

Abstract

Threshold logic is an interesting alternative to Boolean logic in the field of high-performance arithmetic circuits. It offers reduced logic depth and gate count. A competitive implementation of threshold logic uses MOnostable-BIstable transition Logic Elements (MOBILE). The aim of this contribution is to evaluate a specific implementation of MOBILE based on Negative-DifferentialResistance (NDR) MOS structures. This implementation is compared as fairly as possible to Boolean-logic circuits.Simulations of majority-voting gates with 1 to 7 inputs are carried out using the same CMOS process for both logic styles. Results show the improvement brought by the MOBILE implementation regarding to area, power consumption and power-delay product, when the number of inputs becomes large.I.

Nanopipelined threshold network synthesis

“…None of the mentioned publications report buffer overhead. Continued interest in threshold devices appears in the area of cryptography [Cilardo 2011] and high speed, low power applications [Bol et al 2006]. …”

ATPG for Delay Defects in Current Mode Threshold Logic Circuits

“…Although TLGs were initially introduced five decades ago [1] they gained more importance in current years due to the recent developments in CMOS-based implementations [2]- [4]. TLGs are also implementable with emerging nanoelectronic technologies [5], [6].…”

Experimental Validation of a Two-Phase Clock Scheme for Fine-Grained Pipelined Circuits Based on Monostable to Bistable Logic Elements

“…In particular, MOBILE RTD-CMOS pipelined architectures have been compared to conventional CMOS fine-grained pipelines [11] and shown to be significatively more power efficient than conventional CMOS. Also, different transistor circuits have been explored that emulate the NDR characteristic [12], [13], [14], [15], [16]. This paper explores in depth and experimentally validates the two-phase clock scheme for MOBILE based fine-grained pipelines.…”