Unstable 32 kHz Oscillator

The 32 kHz oscillator does not work as a system clock and if it used as an asynchronous timer, it is inaccurate.

Work around

None.

Affected Silicon Revisions

ATmega48A/PA
Rev. D Rev. E
- -
ATmega88A/PA
Rev. F Rev. G
- -
ATmega168A/PA
Rev. E Rev. L
- -
ATmega328/P
Rev. A Rev. B Rev. D
X X -