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| ATXMEGA256A3_1012 Datasheet, PDF (70/134 Pages) ATMEL Corporation – 8/16-bit XMEGA A3 Microcontroller | |||
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34.11 POR Characteristics
Table 34-12. Power-on Reset Characteristics
Symbol Parameter
Condition
VPOT-
VPOT+
POR threshold voltage falling VCC
POR threshold voltage rising VCC
VCC falls faster than 1V/ms
VCC falls at 1V/ms or slower
34.12 Reset Characteristics
Table 34-13. Reset Characteristics
Symbol Parameter
Minimum reset pulse width
Reset threshold voltage
Condition
VCC = 2.7 - 3.6V
VCC = 1.6 - 2.7V
34.13 Oscillator Characteristics
Table 34-14. Internal 32.768 kHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, VCC = 3V,
After production calibration
Table 34-15. Internal 2 MHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, VCC = 3V,
After production calibration
DFLL Calibration step size
T = 25°C, VCC = 3V
Table 34-16. Internal 32 MHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, VCC = 3V,
After production calibration
DFLL Calibration stepsize
T = 25°C, VCC = 3V
Table 34-17. Internal 32 kHz, ULP Oscillator Characteristics
Symbol Parameter
Condition
Output frequency 32 kHz ULP OSC T = 85°C, VCC = 3.0V
XMEGA A3
Min
Typ
Max Units
0.4
0.8
0.8
1.3
V
1.3
1.59
Min
Typ
Max Units
90
1000
ns
0.45*VCC
V
0.42*VCC
Min
Typ
Max Units
-0.5
0.5
%
Min
Typ
Max Units
-1.5
0.15
1.5
%
Min
Typ
Max Units
-1.5
1.5
%
0.2
Min
Typ
Max Units
26
kHz
70
8068TâAVRâ12/10
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