Stack-transistor based differential 8T SRAM cell for embedded memory applications

Weijie Cheng, Baolong Zhou, Huarong Zheng, Yeonbae Chung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this work, we present a novel 8T SRAM cell that enhances the stability of built-in data storage elements. During a read operation, the proposed cell suppresses a noise-vulnerable '0' node rising, and hence exhibiting near-ideal butterfly curve essential for robust SRAM bit-cell design. The cell itself bears an improved variability tolerance which gives much tight stability distribution across skewed process corners. Implementation results in a 130 nm CMOS technology show that the 8T cell achieves almost 100 % higher read stability compared to the standard 6T cell. The data write-ability and stability tolerance provided with the new cell are also verified under process and temperature variations.

Original languageEnglish
Title of host publication2012 IEEE International Conference on Electron Devices and Solid State Circuit, EDSSC 2012
DOIs
StatePublished - 2012
Event2012 8th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2012 - Bangkok, Thailand
Duration: 3 Dec 20125 Dec 2012

Publication series

Name2012 IEEE International Conference on Electron Devices and Solid State Circuit, EDSSC 2012

Conference

Conference2012 8th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2012
Country/TerritoryThailand
CityBangkok
Period3/12/125/12/12

Keywords

  • 8T cell
  • data stability
  • embedded memory
  • SRAM

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