What is the max supply voltage for the new 18M2?

J

jusmee

Member
I see they can work down to 1.8 volts, but does this mean they have a max supply voltage of 3.3 like the other low voltage parts, or can they work from a 5 volt supply still?
 
W

westaust55

Moderator
The datasheet statement:
Fully backwards compatible with all existing 18 pin PICAXE project boards and programs written for any older 18 pin PICAXE part..
Click to expand...
Would indicate that operation up to 5V is possible.

And further into the release issue datasheet:
http://www.rev-ed.co.uk/docs/picaxe18m2.pdf

it clearly states:
Low Voltage Operation
The M2 parts have an internal 3.3V silicon die, but also contain an internal Low Drop Out Regulator, which is
automatically enabled when required. This means all M2 parts can be used across the entire 1.8 to 5V voltage
range. Input/Output interfacing can be at 3.3V or 5V. Powering from 2xAA cells rather than 3xAA cells is now fully
supported. Brownout voltage (if not disabled) is 1.9V.
Click to expand...
 
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