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Los interruptores "memorísticos" permiten operaciones lógicas "de estado" a través de la implicación material.

Julien Borghetti1, Gregory S Snider, Philip J Kuekes

  • 1Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA.

Nature
|April 9, 2010
PubMed
Resumen
Este resumen es generado por máquina.

Los interruptores memristivos, un tipo de memoria resistiva, pueden realizar operaciones lógicas booleanas. Estos dispositivos actúan como puertas de memoria y lógicas, utilizando la resistencia como la variable de estado para la computación avanzada.

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Área de la Ciencia:

  • Ciencia de los materiales Ciencia de los materiales.
  • Ingeniería informática Ingeniería informática.
  • Física del estado sólido Física del estado sólido

Sus antecedentes:

  • La hoja de ruta tecnológica internacional para semiconductores desafía a la comunidad de computación a explorar más allá de los transistores tradicionales basados en carga / voltaje.
  • Las matrices de memoria resistivas que utilizan dispositivos de película delgada ofrecen capacidades de memoria ultra densas.
  • Los memristores, o dispositivos memristivos, son hipotéticos interruptores de dos terminales con una resistencia dependiente del historial de voltaje.

Objetivo del estudio:

  • Investigar el potencial de los dispositivos memristivos para realizar operaciones lógicas.
  • Demostrar que los switches memristivos pueden ejecutar funciones lógicas booleanas fundamentales.
  • Para explorar operaciones lógicas 'estatales' utilizando memristores como puertas lógicas combinadas y elementos de memoria.

Principales métodos:

  • Utilizó interruptores bipolares activados por tensión como realizaciones físicas de dispositivos memristivos.
  • Demostró la ejecución de la operación lógica booleana de la implicación material (IMP).
  • Circuitos diseñados en los que los interruptores memristivos funcionan tanto como puertas lógicas como como como cierres de memoria.

Principales resultados:

  • Se demostró que los interruptores memristivos realizan la operación lógica de implicación de material (IMP, por sus siglas en inglés).
  • Estos dispositivos ejecutaron con éxito la lógica de estados, integrando la memoria y las funciones lógicas.
  • La resistencia, en lugar de la carga o el voltaje, se utilizó como la variable de estado físico.

Conclusiones:

  • Los dispositivos memristivos ofrecen un nuevo enfoque de la computación al permitir operaciones lógicas de estados.
  • El uso de la resistencia como una variable de estado en memristores abre nuevas vías para las arquitecturas de computación más allá de CMOS.
  • Los memristores pueden servir simultáneamente como puertas lógicas y elementos de memoria, avanzando la tecnología de circuitos integrados.