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Resistor-logic demultiplexers for nanoelectronics based on constant-weight codes
Philip J Kuekes1, Warren Robinett, Ron M Roth
1Hewlett-Packard Laboratories, Palo Alto, CA 94304, USA.
Nanotechnology
|July 6, 2011
Summary
Improving resistor-logic demultiplexer voltage margins is possible using constant-weight codes. Selecting codes that minimize the ratio of maximum to minimum Hamming distance optimizes nanoscale crossbar memory performance.
Area of Science:
- Electrical Engineering
- Computer Science
- Information Theory
Background:
- Resistor-logic demultiplexers are crucial for digital circuits.
- Nanoscale crossbar memories offer high density but face challenges in voltage margin.
- Constant-weight codes provide a structured approach to circuit design.
Purpose of the Study:
- To enhance the voltage margin of resistor-logic demultiplexers.
- To explore the application of these demultiplexers in nanoscale crossbar memories.
- To establish a code-theoretic criterion for optimizing memory voltage margins.
Main Methods:
- Basing demultiplexer connection patterns on constant-weight codes.
- Analyzing the voltage margin of memory systems built with these demultiplexers.
- Developing a code selection criterion based on Hamming distance ratios.
Main Results:
- Significant improvement in demultiplexer voltage margin is achievable.
- A large family of unique demultiplexers can be defined by distinct codes.
- Minimizing the ratio of maximum to minimum Hamming distance is key for large voltage margins.
Conclusions:
- Constant-weight codes offer a viable strategy for improving resistor-logic demultiplexer performance.
- The code-theoretic criterion provides a method for selecting optimal codes for nanoscale crossbar memories.
- This approach can lead to more robust and reliable nanoscale memory systems.
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