@inproceedings{667b14127e7f450c92f07c0a22ba5b5d,
title = "A 40nm 256kb 6T SRAM with threshold power-gating, low-swing global read bit-line, and charge-sharing write with Vtrip-tracking and negative source-line write-assists",
abstract = "This paper presents a 256kb 6T static random access memory (SRAM) with threshold power-gating (TPG), low-swing global read bit-line (GRBL), and charge-sharing write with Vtrip (VTP) tracking and negative source-line (NVSL) write-assists (WA). The TPG facilitates lower NAP mode voltage/power and faster wake-up for the cell array, while low-swing GRBL reduces the dynamic read power. A variation-tolerant charge-sharing write scheme, where the floating 'Low' global write bit-line (GWBL) is used to capacitively couple down the local bit-line (LBL), is combined with a cell Vtrip-tracking and NVSL write-assists to improve the write-ability. The 256kb test chip is implemented in UMC 40nm low-power (LP) CMOS technology. Error-free full-functionality is achieved from 1.18GHz at 1.5V to 100MHz at 0.65V without redundancy. The TPG scheme reduces the power by 70% (55%) at 1.5V (0.5V) in NAP mode. The low-swing GRBL reduces dynamic read power by 3.5% (8%) at 1.1V (0.65V). The VTP-WA and NVSL-WA improve the write VMIN by 50mV (from 0.7V to 0.65V) and reduce write bit failure rate by 2.75× at 0.65V.",
keywords = "6T SRAM, low power, power-gating, write-assist",
author = "Chung, {Chao Kuei} and Lu, {Chien Yu} and Chang, {Zhi Hao} and Shyh-Jye Jou and Chuang, {Ching Te} and Tu, {Ming Hsien} and Chen, {Yu Hsuan} and Hu, {Yong Jyun} and Kan, {Paul Sen} and Huang, {Huan Shun} and Lee, {Kuen Di} and Kao, {Yung Shin}",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 27th IEEE International System on Chip Conference, SOCC 2014 ; Conference date: 02-09-2014 Through 05-09-2014",
year = "2014",
month = nov,
day = "5",
doi = "10.1109/SOCC.2014.6948972",
language = "English",
series = "International System on Chip Conference",
publisher = "IEEE Computer Society",
pages = "455--460",
editor = "Kaijian Shi and Thomas Buchner and Danella Zhao and Ramalingam Sridhar",
booktitle = "International System on Chip Conference",
address = "美國",
}