ATXMEGA256A3B_09 ATMEL [ATMEL Corporation], ATXMEGA256A3B_09 Datasheet - Page 95

• Manufacturer Part Number: ATXMEGA256A3B_09
• Description: 8/16-bit XMEGA A3B Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

8116F–AVR–09/09
Figure 36-1. Analog Comparator Voltage Scaler vs. Scalefac
9. Maximum operating frequency below 1.76V is 8 MHz
Problem fix/Workaround
Use external voltage input for the analog comparator if accurate voltage levels are needed.
To ensure correct operation, the maximum operating frequency below 1.76V VCC is 8 MHz.
Problem fix/Workaround
None, avoid running the device outside this frequency and voltage limitation.
3.5
2.5
1.5
0.5
3
2
1
0
0
T = 25°C
5
10
15
20
25
SCALEFAC
30
35
40
45
50
55
XMEGA A3B
60
65
3.3 V
2.7 V
1.8 V
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