2.5V on atmega

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#1
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Hello!

I'm working on a small project where the VCC for my microcontroller can be 2.5V. In the datasheet (for ATMEGA16) it says 

Operating Voltages – 4.5V - 5.5V for ATmega16. But what if I put it on 1MHz internal clock and brown-out at 1.8V? Will it work?

Thanks!

 

Code is everything, code is life :D
 

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According to the datasheet, no. I'd suggest you choose a later model part that is specified for a lower voltage.

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ATmega164 is the possible obvious replacement for the aged old mega16. 

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I would be very surprised if you can buy ATmega16 nowadays.  

ATmega16A is current production.   2.7V-5.5V

ATmega164A is current production.   1.8V-5.5V

 

If you actually own a ATmega16,   just try it at 2.5V for hobbyist use.   It is not within spec but might work ok.

 

If you intend to sell products,   buy current chips,  keep within spec.

 

David.

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I find if you operate something out of spec that it will work quite nicely until you have your project all put together nice and neat and...

 

... go to show it to somebody.

The largest known prime number: 282589933-1

It's easy to stop breaking the 10th commandment! Break the 8th instead. 

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Yes, I will use another controller. Thanks!

Code is everything, code is life :D