ATXMEGA128D4 Datasheet, PDF (65/100 Pages) ATMEL Corporation – 8/16-bit AVR XMEGA D4 Microcontroller

XMEGA D4
31.12 Oscillator Characteristics
Table 31-13. Internal 32.768 kHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, V_CC = 3V,
After production calibration
Table 31-14. Internal 2 MHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, V_CC = 3V,
After production calibration
DFLL Calibration step size
T = 25°C, V_CC = 3V
Min
Typ
Max Units
-0.5
0.5
%
Min
Typ
Max Units
-1.5
0.15
1.5
%
Table 31-15. Internal 32 MHz Oscillator Characteristics
Symbol Parameter
Condition
Accuracy
T = 85°C, V_CC = 3V,
After production calibration
DFLL Calibration stepsize
T = 25°C, V_CC = 3V
Min
Typ
Max Units
-1.5
0.2
1.5
%
Table 31-16. Internal 32 kHz, ULP Oscillator Characteristics
Symbol Parameter
Condition
Output frequency 32 kHz ULP OSC T = 85°C, V_CC = 3.0V
Min
Typ
26
Table 31-17. Maximum load capacitance (CL) and ESR recommendation for 32.768 kHz Crystal
Crystal CL [pF]
Max ESR [kΩ]
6.5
60
9
35
Max Units
kHz
65
8135G–AVR–08/10