Datasheet

63
8069R–AVR–06/2013
XMEGA A4
Not recommended for new designs -
Use XMEGA A4U series
34.3 Speed
The maximum CPU clock frequency of the XMEGA A4 devices is depending on V
CC
. As shown
in Figure 34-1 on page 63 the Frequency vs. V
CC
curve is linear between 1.8V < V
CC
<2.7V.
Figure 34-1. Operating Frequency vs.Vcc
Table 34-2. Operating voltage and frequency
Symbol Parameter Condition Min Typ Max Units
Clk
CPU
CPU clock frequency
V
CC
= 1.6V 0 12
MHz
V
CC
= 1.8V 0 12
V
CC
= 2.7V 0 32
V
CC
= 3.6V 0 32
1.8
12
32
MHz
V
2.7
3.6
1.6
Safe Operating Area