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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

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  • 0 in reply to ImPer Westermark

    Most (all?) Cortex-M3 are quite nice when it comes to power/MIPS since the manufacturer buys the processor core as a macro cell and the macro cell for a given technology should have a quite fixed power consumption.

    Err ... I don't think this generalization holds.

    We were looking at Cortex-M3s before Atmel started offering theirs, and there was a factor of _10_ between the Cortex M3 of one of their competitors, and an ARM7 from Atmel, at a similar MIPS/memory/peripheral point. (The power dissipation for the Cortex M3 was about 250 mW according to the datasheet, for the ARM7 30 mW.).

    Some manufacturers are better at peripherals and processes than others. Don't assume that just because it's a Cortex M3 chip, it will be a power-saving wonder. Read the datasheet first.

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  • 0 in reply to ImPer Westermark

    Most (all?) Cortex-M3 are quite nice when it comes to power/MIPS since the manufacturer buys the processor core as a macro cell and the macro cell for a given technology should have a quite fixed power consumption.

    Err ... I don't think this generalization holds.

    We were looking at Cortex-M3s before Atmel started offering theirs, and there was a factor of _10_ between the Cortex M3 of one of their competitors, and an ARM7 from Atmel, at a similar MIPS/memory/peripheral point. (The power dissipation for the Cortex M3 was about 250 mW according to the datasheet, for the ARM7 30 mW.).

    Some manufacturers are better at peripherals and processes than others. Don't assume that just because it's a Cortex M3 chip, it will be a power-saving wonder. Read the datasheet first.

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