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Low Power Cortex M?

Cpt. Vince

I am looking for the lwest power Cortex M-?

I don't want to spend years searching the internet for a low-power ARM Cortex controller.

Does anybody know of one?

(And yes, it is Keil related since I'll be using Keil to program it)

Thanks,

--Cpt. Vince Foster
2nd Cannon Place
Fort Marcy Park, VA

Parents
  • 0 in reply to Cpt. Vince

    "2800mA/H"

    I expect you meant 2800mAh @ 3.6V since you need voltage*current*time to get energy, and that you are talking about a one-cell battery. Say 8W usable after losses from a DC/DC.

    Counting 12 hours operation and a 90% power reduction for the idle hours, that would give about 0.6W when active and 0.06W in idle. Assuming 50% for the cores to process instructions, and 50% for internal modules (DMA, UART etc) and external logic, you would have 0.3W for instruction processing.

    If the claim of 0.09mW/MHz is true for the 0.13G process, your 0.3W would then be enough for 300/0.09 [MHz] = 3.3 GHz or 33 processors running at 100MHz.

    Processors using the 0.18G process would give you 300/0.19 [MHz] = 1.6 GHz.

    I really must have computed something wrong, but the figures sounds quite large ;)

Reply
  • 0 in reply to Cpt. Vince

    "2800mA/H"

    I expect you meant 2800mAh @ 3.6V since you need voltage*current*time to get energy, and that you are talking about a one-cell battery. Say 8W usable after losses from a DC/DC.

    Counting 12 hours operation and a 90% power reduction for the idle hours, that would give about 0.6W when active and 0.06W in idle. Assuming 50% for the cores to process instructions, and 50% for internal modules (DMA, UART etc) and external logic, you would have 0.3W for instruction processing.

    If the claim of 0.09mW/MHz is true for the 0.13G process, your 0.3W would then be enough for 300/0.09 [MHz] = 3.3 GHz or 33 processors running at 100MHz.

    Processors using the 0.18G process would give you 300/0.19 [MHz] = 1.6 GHz.

    I really must have computed something wrong, but the figures sounds quite large ;)

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