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Ternary Arithmetic Logic Unit Design Utilizing Carbon Nanotube Field Effect Transistor (CNTFET) and Resistive Random
Furqan Zahoor1, Fawnizu Azmadi Hussin1, Farooq Ahmad Khanday2
1Electrical and Electronic Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia.
Micromachines
|November 27, 2021
Summary
This study introduces a novel ternary logic arithmetic logic unit (ALU) using carbon nanotube field effect transistors (CNTFETs) and resistive random access memory (RRAM). The integrated design offers compact, robust, and non-volatile ternary computing solutions.
Area of Science:
- Electronics Engineering
- Materials Science
- Computer Architecture
Background:
- Silicon transistor scaling limitations drive research into alternative computing paradigms like ternary logic.
- Carbon nanotube field effect transistors (CNTFETs) offer desirable properties for ternary circuits, while resistive random access memory (RRAM) provides multilevel storage capabilities.
Purpose of the Study:
- To design and validate a 2-trit arithmetic logic unit (ALU) by integrating CNTFETs and RRAM.
- To optimize the ALU design through a controlled ternary adder-subtractor module.
Main Methods:
- The proposed ALU design incorporates transmission gate blocks, function select blocks, and ternary function processing modules.
- Simulations were performed using Synopsis HSPICE with 32 nm CNTFET technology under varying supply voltages.
Main Results:
- The CNTFET-RRAM integration resulted in a compact circuit realization with demonstrated robustness.
- The proposed ALU design exhibited good performance under different operating conditions.
Conclusions:
- The integration of CNTFETs and RRAM presents a viable technology for advanced ternary logic circuits.
- The developed ALU offers non-volatility and improved circuit compactness, paving the way for next-generation computing.
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