use other frequency than 12MHz

kattiaster · Post by **kattiaster** » Wed Jul 30, 2008 2:17 pm

hi,

is it possible to use an ohter frequency than the 12MHz, for example 8MHz.
And can I use then the internal oscillator or is this too inexact?

thx
kattoaster

kattoaster · Post by **kattoaster** » Wed Jul 30, 2008 2:19 pm

sry for this post,
i found an other one with the answer

Post by **christian** » Thu Jul 31, 2008 12:23 pm

Just for the reference:
You can use crystal clocks of 12, 15, 16, 16.5 or 20 MHz. Lower rates are not supported. An RC clock of 16.5 MHz is also supported, but this clock is only available on some AVRs such as the ATTiny25, 45, 85 and ATTiny26.