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ARM Releases "World's Most Efficient Processor"

By - Source: ARM

ARM today announced a new low-power processor, the Cortex-M0+, which the company claims is "the world's most energy-efficient microprocessor".

According to the IP provider, the chip is designed to be used in home appliances, white goods, medical monitoring, metering, lighting and power and motor control devices to deliver an "ultra low-power" of 9µA/MHz on a 90nm LP process.

The Cortex-M0+ fits into a new product trend that is generally referred to as the "Internet of Things", which describes an environment in which simple devices are wirelessly connected to each other and can provide communication, management and maintenance capability. ARM imagines its new processors to be used in applications ranging from "sensors to wirelessly analyze the performance and control of domestic or industrial buildings, to battery-operated body sensors wirelessly connected to health monitoring equipment."

ARM said that the new 32-bit chip, which builds on the platform of the Cortex-M0, consumes only one third of 8-bit and 16-bit processors that are used in the application field targeted by the processor. Developers can use the ARM Keil MDK to compile and debug 32-bit applications for the chip. According to ARM, early licensees of the Cortex-M0+ chip include Freescale and NXP.

There are 33 Comments. B
Top Comments
  • 24
    Soda-88 , March 14, 2012 6:07 AM
    never thought i'd see a 90nm cpu be considered the most energy efficient in 22/28nm era
  • 21
    IndignantSkeptic , March 14, 2012 7:16 AM
    Quote:
    Quote:
    9µA/MHz


    Since when is Amps a measure of energy? Energy is measured in JULES. If you're gonna give amps, at least give voltage too.


    I love when people make mistakes while angrily pointing out others' mistakes. I think you meant "joules".
  • 15
    kcorp2003 , March 14, 2012 6:11 AM
    Soda-88never thought i'd see a 90nm cpu be considered the most energy efficient in 22/28nm era


    true but considering it uses a 1/3 of the power of a 8bit chip is sweet.
Other Comments
  • 24
    Soda-88 , March 14, 2012 6:07 AM
    never thought i'd see a 90nm cpu be considered the most energy efficient in 22/28nm era
  • 15
    kcorp2003 , March 14, 2012 6:11 AM
    Soda-88never thought i'd see a 90nm cpu be considered the most energy efficient in 22/28nm era


    true but considering it uses a 1/3 of the power of a 8bit chip is sweet.
  • 14
    Tab54o , March 14, 2012 6:18 AM
    Home appliances? I dread the days when our microwaves, toasters and coffee makers have lan ports or wifi cards and operating systems.
  • 5
    esrever , March 14, 2012 6:23 AM
    Soda-88never thought i'd see a 90nm cpu be considered the most energy efficient in 22/28nm era

    makes you wonder what a 22nm chip like this will be like. Maybe it will be able to run on less than 0.1w of power.
  • 8
    Yuka , March 14, 2012 6:28 AM
    Tab54oHome appliances? I dread the days when our microwaves, toasters and coffee makers have lan ports or wifi cards and operating systems.


    Well, by strict definition, everything with a chip has an OS... And well... Samsung already has several appliances with WiFi :p 

    Cheers!
  • 4
    ashkal , March 14, 2012 6:40 AM
    Why 90nm ? why not less?
  • 2
    yezster , March 14, 2012 6:57 AM
    Hail to the era of power efficiency...
  • 1
    dudzcom , March 14, 2012 6:59 AM
    esrevermakes you wonder what a 22nm chip like this will be like. Maybe it will be able to run on less than 0.1w of power.


    I'd bet $10 your microwave is running unix right now.
  • 13
    madjimms , March 14, 2012 6:59 AM
    ashkalWhy 90nm ? why not less?

    90nm probably costs less to make?
  • 12
    dudzcom , March 14, 2012 7:02 AM
    Quote:
    9µA/MHz


    Since when is Amps a measure of energy? Energy is measured in JULES. If you're gonna give amps, at least give voltage too.
  • 3
    bak0n , March 14, 2012 7:03 AM
    Efficiency comes down to how much electricity is turned into usable energy. Just because something uses nearly 0 energy won't necessarily make it efficient.
  • 8
    deanjo , March 14, 2012 7:12 AM
    Tab54oHome appliances? I dread the days when our microwaves, toasters and coffee makers have lan ports or wifi cards and operating systems.



    I have to disagree. It all depends on the appliance. For example, notifications from items like shared washing machines and laundry dryers would kick a** in an apartment setting especially. *Bing* Your dryer is done... *Bing* The dryer is now free *Bing* The rinse cycle has started... etc etc etc.
  • 21
    IndignantSkeptic , March 14, 2012 7:16 AM
    Quote:
    Quote:
    9µA/MHz


    Since when is Amps a measure of energy? Energy is measured in JULES. If you're gonna give amps, at least give voltage too.


    I love when people make mistakes while angrily pointing out others' mistakes. I think you meant "joules".
  • 2
    QEFX , March 14, 2012 7:46 AM
    "consumes only one third of 8-bit and 16-bit processors that are used in the application field targeted by the processor"


    I think something's missing ... consumers only one third the power of 8-bit ...
  • 2
    QEFX , March 14, 2012 7:50 AM
    qefx"consumes only one third of 8-bit and 16-bit processors that are used in the application field targeted by the processor"I think something's missing ... consumers only one third the power of 8-bit ...


    consumes*

    1) We need an edit option
    2) I need to turn off auto-correct
  • -3
    cumi2k4 , March 14, 2012 7:58 AM
    So how does this translate to smartphone usage? Don't tell me that i still have to charge it everyday...
  • 1
    tipoo , March 14, 2012 8:14 AM
    esrevermakes you wonder what a 22nm chip like this will be like. Maybe it will be able to run on less than 0.1w of power.


    It takes nine microwatts per megahertz, I think it would be under your 0.1W figure most of the time.

    As for 22nm, maybe with a die this small they'd have problems with power gating and whatnot to stop leakage from a smaller process, just a guess. Otherwise I can't think why something they want to draw the least possible power would be on such an old process, even 65nm would have higher yields and still be very attainable.
  • 1
    tipoo , March 14, 2012 8:16 AM
    cumi2k4So how does this translate to smartphone usage? Don't tell me that i still have to charge it everyday...


    Even a dumbphone (err, featurephone) would have a more powerful processor than this, its not made for smartphones and I doubt it could run a modern OS, this is for appliances that just need to send and receive simple information like power draw of other appliances.
  • 1
    soky602 , March 14, 2012 8:22 AM
    deanjoI have to disagree. It all depends on the appliance. For example, notifications from items like shared washing machines and laundry dryers would kick a** in an apartment setting especially. *Bing* Your dryer is done... *Bing* The dryer is now free *Bing* The rinse cycle has started... etc etc etc.

    I sure hope they put a "Mute" button
  • -2
    JeTJL , March 14, 2012 9:19 AM
    Finally, we will see +48 hour battery life again in our phones soon.
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