48.4.2 Internal Oscillator Parameters(1)

Table 48-8. 
Standard Operating Conditions (unless otherwise stated)
Param No.Sym.CharacteristicMin.Typ. †Max.UnitsConditions
OS50FHFOSCPrecision Calibrated HFINTOSC Frequency—

4

8

16

32

—MHz(Note 2)
OS51FHFOSCLPLow-Power Optimized HFINTOSC Frequency—1(3)—MHz
OS51A—2(3)—MHz
OS51B—3(3)—MHz
OS52FMFOSCInternal Calibrated MFINTOSC Frequency—500—kHz
OS53*FLFOSCInternal LFINTOSC Frequency—31—kHz
OS54*THFOSCSTHFINTOSC Wake-up from Sleep Start-up Time—1940μs
OS56*TLFOSCSTLFINTOSC Wake-up from Sleep Start-up Time—0.21ms
OS57%CALOSCTUNE Step Size———%

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. To ensure these oscillator frequency tolerances, VDD and VSS must be capacitively decoupled as close to the device as possible. 0.1 μF and 0.01 μF values in parallel are recommended.
  2. See the figure below.
  3. Frequencies are not calibrated.
Figure 48-5. Precision Calibrated HFINTOSC Frequency Accuracy Over Device VDD and Temperature