41.4.2 Internal Oscillator Parameters(1)

Table 41-8. 
Standard Operating Conditions (unless otherwise stated)
Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
OS50 FHFOSC Precision Calibrated HFINTOSC Frequency —

4

8

16

32

 — MHz (Note 2)
OS51 FHFOSCLP Low-Power Optimized HFINTOSC Frequency — 1(3) — MHz
OS51A — 2(3) — MHz
OS51B — 3(3) — MHz
OS52 FMFOSC Internal Calibrated MFINTOSC Frequency — 500 — kHz
OS53* FLFOSC Internal LFINTOSC Frequency — 31 — kHz
OS54* THFOSCST HFINTOSC Wake-up from Sleep Start-up Time — 19 40 μs
OS56* TLFOSCST LFINTOSC Wake-up from Sleep Start-up Time — 0.2 1 ms
OS57 %CAL OSCTUNE 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 41-5. Precision Calibrated HFINTOSC Frequency Accuracy Over Device VDD and Temperature