Domain Wall Memory based Digital Signal processors for area and energy-efficiency

Jinil Chung, Kenneth Ramclam, Jongsun Park, Swaroop Ghosh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


In many Digital Signal Processing (DSP) applications such as Viterbi decoder and Fast Fourier Transform (FFT), Static Random Access Memory (SRAM) based embedded memory consumes significant portion of area and power. These DSP units are dominated by sequential memory access where SRAM-based memory is inefficient in terms of area and power. We propose spintronic Domain Wall Memory (DWM) based embedded memories for DSP building blocks e.g., survivor-path memories in Viterbi decoder and First-In-First-Out (FIFO) register files in FFT processor that exploit the unique serial access mechanism, non-volatility and small footprint of the memory for area and power saving. Simulations using 65nm technology show that the DWM based Viterbi decoder achieves 66.4 % area and 59.6 % power savings over the conventional SRAM-based implementation. For 8K point FFT processor, the DWM based design shows 60.6 % area and 60.3 % power savings.

Original languageEnglish (US)
Title of host publication2015 52nd ACM/EDAC/IEEE Design Automation Conference, DAC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781450335201
StatePublished - Jul 24 2015
Event52nd ACM/EDAC/IEEE Design Automation Conference, DAC 2015 - San Francisco, United States
Duration: Jun 7 2015Jun 11 2015

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X


Other52nd ACM/EDAC/IEEE Design Automation Conference, DAC 2015
Country/TerritoryUnited States
CitySan Francisco

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Modeling and Simulation


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