A Comparative Study of 6T, 8T and 9T SRAM Cell

نویسندگان

  • Kirti Bushan
  • Sukhwinder Singh
چکیده

From the last few decades, the scaling down of CMOS devices have been taking place to achieve better performance in terms of speed, power dissipation, size and reliability. The major area of concern in today‟s CMOS technology is Data retention and leakage current reduction. SRAM (Static Random Access Memory) is memory used to store data. Conventional Static Random Access Memory (SRAM) cells suffer from an intrinsic data instability problem due to directly-accessed data storage nodes during a read operation. Noise margins of memory cells further shrink with increasing variability and decreasing power supply voltage in scaled CMOS technologies. The comparison of different SRAM cell on the basis of different performance metrics like Read delay, Write delay, Power dissipation, noise margin, area is done in this review paper.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Modified 8-Transistor SRAM Cell Design with High Stability and Low Power Applications

SRAM occupies two-third area of VLSI chips, therefore it dominates the total power consumption. To enhance the performance of these chips, SRAM cell should meet the requirement of lesser power consumption. This paper presents a new 8T SRAM cell that is efficient in Dynamic power consumption in Write mode and Leakage power consumption when compared with referred 9T SRAM cell and standard 6T SRAM...

متن کامل

Design and Verification of Low Power SRAM using 8T SRAM Cell Approach

SRAM cell stability will be a primary concern for future technologies due to variability and decreasing power supply voltages. Advances in chip designing have made possible the design of chips at high integration and fast performance. Lowering power consumption and increasing noise margin have become two central topics in every state of SRAM designs.The Conventional 6T SRAM cell is very much pr...

متن کامل

Comparative Parametric Analysis for Stability of 6t and 8t Sram Cell

As the technology is improving , channel length of MOSFET is scaling down. In this environment stability of SRAM becomes the major concern for future technology. Static noise margin (SNM)[1] plays a vital role in stability of SRAM[2]. This paper gives an introduction to the “8T SRAM cell”[3]. It includes the Implementation, characterization and analysis of 8T SRAM cell and its comparison with t...

متن کامل

12th Int'l Symposium on Quality Electronic Design

Bias Temperature Instability (BTI) causes significant threshold voltage shift in MOSFET using Hafnium-dioxide (HfO2) High-k dielectric material. Negative BTI and Positive BTI are two types of BTI effects observed in p-channel and n-channel MOSFET. BTI affects the stability and reliability of conventional six transistor (6T) SRAM design in nano-scale CMOS technology. Eight transistor (8T) and Te...

متن کامل

Stability and Leakage Analysis of a Novel PP Based 9T SRAM Cell Using N Curve at Deep Submicron Technology for Multimedia Applications

Due to continuous scaling of CMOS, stability is a prime concerned for CMOS SRAM memory cells. As scaling will increase the packing density but at the same time it is affecting the stability which leads to write failures and read disturbs of the conventional 6T SRAM cell. To increase the stability of the cell various SRAM cell topologies has been introduced, 8T SRAM is one of them but it has its...

متن کامل

A Sub-threshold 9T SRAM Cell with High Write and Read ability with Bit Interleaving Capability

This paper proposes a new sub-threshold low power 9T static random-access memory (SRAM) cell compatible with bit interleaving structure in which the effective sizing adjustment of access transistors in write mode is provided  by isolating writing and reading paths. In the proposed cell, we consider a weak inverter to make better write mode operation. Moreover applying boosted word line feature ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015