Saturday, May 27, 2017
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Google to Retire the AlphaGo AI Program
Apple is Building AI Chip for iPhone
Chip Industry "Threatened" by Chinese Players
AMD Ryzen AGESA 1.0.0.6 Firmware to Enable Speedy Memory Clocks
Nvidia Introduces the GeForce MX150 For Laptops
Intel Dominates the Enterprise SSD Market
NVIDIA Introduces New GeForce GTX Battlebox
TSMC is Already Testing 7nm Chips, Coming Next Year
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > General Computing > Toshiba...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, February 21, 2011
Toshiba Develops New Energy-Saving Flip-Flop Circuit


Toshiba will present a new power eficient flip-flop circuit for mobile equipment at t the 2011 IEEE International Solid-State Circuits Conference (ISSCC).

The new flip-flop circuit has been developed using the 40nm CMOS process is is expected to reduce power consumption in mobile equipment. Measured data verifies that the power dissipation of the new flip-flop is up to 77% less than that of a typical conventional flip-flop and that it achieves a 24% reduction in total power consumption when applied to a wireless LAN chip.

Measured data verifies that the power dissipation of the new flip-flop is up to 77% less than that of a typical conventional flip-flop and that it achieves a 24% reduction in total power consumption when applied to a wireless LAN chip.

A flip-flop is a circuit that temporarily stores one bit of data during arithmetic processing by a digital system-on-a-chip (SoC) incorporated in mobile equipment and other digital equipment. As a typical SoC uses 100,000 to 10 million flip-flops they are an essential part of an SoC design.

A typical flip-flop incorporates a clock buffer to produce a clock inverted signal required for the circuit's operation. When triggered by a signal from the clock, the clock buffer consumes power, even when the data is unchanged. In order to reduce this power dissipation, a power-saving design technique called clock gating is widely used to cut delivery of the clock signal to unused blocks. However, after applying the clock gating, the flip-flop active rate, a measure of data change rate per clock, is only 5-15%, indicating that there is still plenty of room for further power reduction.

In order to save power, Toshiba changed the structure of the typical flip-flop and eliminated the power-consuming clock buffer. This approach brings with it the problem of data collision between the data writing circuitry and the state holding circuitry in the flip-flop, which Toshiba overcame by adding adaptive coupling circuitry to the flip-flop. A combination of an nMOS transistor and a pMOS transistor, this circuitry adaptively weakens state-retention coupling and prevents collisions. Despite the addition of the adaptive coupling circuitry, overall simplification of the basic flip-flop configuration reduces the transistor count from 24 to 22, and the cell area is less than that of the conventional flip-flop.

This achievement will be announced on February 23 at the 2011 IEEE International Solid-State Circuits Conference (ISSCC) now being held in the United States.



Previous
Next
Google Docs Viewer Supports New File Formats        All News        Samsung Develops Mobile DRAM with Wide Interface
Google Docs Viewer Supports New File Formats     General Computing News      JVC Kenwood to Merge Operations

Get RSS feed Easy Print E-Mail this Message

Related News
Western Digital Raises its Offer For Toshiba's Memory Business: report
Broadcom, KKR and SK Hynix - Bain Join Final Bidding Round for Toshiba's Memory Unit
Western Digital Takes Legal Action Against Toshiba to Block Sale Of Memory Chip Business
Toshiba Tells Western Digital To Stop Messing Up With Chip Unit Sale
Toshiba Demonstrates 64-Layer BiCS FLASH on Client NVM Express SSD
Toshiba to Spin Off 4 Operations
Questions Remain About The Fate Of Toshiba's HDD and SSD Business
Toshiba's Shareholders Seek For New Compensatory Damages
Toshiba's New 8TB Consumer Hard Disk Focuses on Reliability
INCJ Added to the List Of Companies Interested In Toshiba's Chip Unit
Apple Eyes Toshiba's Memory Chip Business: reports
Toshiba To Sell Its TV Business, Turkish, Chinese Companies Among Buyers

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2017 - All rights reserved -
Privacy policy - Contact Us .