MCU with uA power consumption ?

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1

Hi friends. is any Arduino compatible MCU with uA power consumption in active mode ? I need a MCU working in active mode and 100 uA power consumption.

thanks.

2

It could be dependant on what you mean by 'active mode'.

Describing what it is you are actually trying to do with this MCU will improve the quality of the answers you get.

3

srnet:
It could be dependant on what you mean by 'active mode'.

Describing what it is you are actually trying to do with this MCU will improve the quality of the answers you get.

thanks for reply. I mean the MCU always reading the analog input and the MCU is battery powered.

4

ErfanDL:
thanks for reply. I mean the MCU always reading the analog input and the MCU is battery powered.

which is TOTALLY DIFFERENT THAN WHAT YOU SAID AT FIRST

And under what conditions do you want the MCU to do something?

Like, the reason I say this is that with the new megaavr parts, you can set RUNSTBY for the adc, put it into free running mode and enable the window interrupt to fire when it's above or below the specified thresholds, and have the part in IDLE sleep mode with most of the chip powered down, but it would wake the chip if it went outside the window.... Or if every reading matters, free running mode wake on the interrupt store the new reading then go back to sleep...

5

DrAzzy:
which is TOTALLY DIFFERENT THAN WHAT YOU SAID AT FIRST

And under what conditions do you want the MCU to do something?

Like, the reason I say this is that with the new megaavr parts, you can set RUNSTBY for the adc, put it into free running mode and enable the window interrupt to fire when it's above or below the specified thresholds, and have the part in IDLE sleep mode with most of the chip powered down, but it would wake the chip if it went outside the window.... Or if every reading matters, free running mode wake on the interrupt store the new reading then go back to sleep...

thanks for reply. the MCU reading the EMF from a 20Kv power line (from analog input). I want when the EMF is above the 500 turning ON an LED. I wrote the sketch for ATTINY13A and it's working good under the 20Kv power line but the problem is ATTINY13A widely consumed the battery about 400uA and I need an MCU about 100uA power consumption.
thanks and sorry for bad english.

6

Anyone can help ?

7

I checked a couple of my favorites, and none of them come close, all doing about 130+uA per MHz

8

ErfanDL:
the MCU reading the EMF from a 20Kv power line (from analog input). I want when the EMF is above the 500 turning ON an LED.

Why do you want to an MCU for something so simple? Use an analog comparator.

9

PaulRB:
Why do you want to an MCU for something so simple? Use an analog comparator.

which model is recommended ?

10

LM392 or LM339 could work.