Datasheet

109
8068U–AVR–06/2013
XMEGA A3
Not recommended for new designs -
Use XMEGA A3U series
10. Operating Frequency and Voltage Limitation
To ensure correct operation, there is a limit on operating frequency and voltage. Figure 36-3
on page 109 shows the safe operating area.
Figure 36-3. Operating Frequnecy and Voltage Limitation
Problem fix/Workaround
None, avoid using the device outside these frequnecy and voltage limitations.
11. Inverted I/O enable does not affect Analog Comparator Output
The inverted I/O pin function does not affect the Analog Comparator output function.
Problem fix/Workarund
Configure the analog comparator setup to give a inverted result (i.e. connect positive input to
the negative AC input and vice versa), or use and externel inverter to change polarity of
Analog Comparator Output.
MHz
V
3.6
2.4
30
15
Safe operating
area