The plug pack only has to be over 7v and under ~30v....You can hook it up to a battery as long as its over 7v.You could technically use lower voltage supplies but it gets complicated then.
Input Voltage 6-12 V
I thought the minimum was 7v due to the regulator.
there's a new low-dropout power regulator, so the board can run with a minimum input voltage of 6V instead of 7V, meaning that you can power it with 4 AA's
The maximum isnt 12v. It says that just to prevent people blowing stuff up.Its really around 30v.
(don't give it more than 12V, though, unless, as Gianluca says, you want to cook eggs on it),
he maximum input voltage, the regulator is an MC33269, which has a stated max input of 20V.With the drop across the polarity diode, that makes the max input voltage 20.7, after which your Diecimila automatically converts to toaster mode
In theory, the regulator can more than 12V (either 24 or 30, I forget which), but that assumes a much beefier heat sink than we have on the Diecimila.
What about adding a sentence that says something like "If supplied with less than 7V, the board's power may fluctuate. ..."?