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ATXMEGA128B1 Datasheet, PDF (68/138 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA B1 Microcontroller
The maximum System clock frequency of the Atmel® AVR® XMEGA B1 devices is depending on VCC. As shown in Figure
36-1 on page 68 the Frequency vs. VCC curve is linear between 1.8V < VCC < 2.7V.
Figure 36-1. Maximum Frequency vs. Vcc
MHz
32
Safe Operating Area
12
1.6 1.8
2.7
3.6
V
XMEGA B1 [DATASHEET] 68
8330C–AVR–07/2012