45.4.2 Internal Oscillator Parameters⁽¹⁾

Table 45-8.
Standard Operating Conditions (unless otherwise stated)
Param No.	Sym.	Characteristic	Min.	Typ. †	Max.	Units	Conditions
OS50	F_HFOSC	Precision Calibrated HFINTOSC Frequency	—	4	—	MHz	Note 2
				8
				12
				16
				32
				48
				64
OS51*	F_HFOSCLP	Low-Power Optimized HFINTOSC Frequency	—	1	—	MHz	FRQ = `'b0000`⁽³⁾
OS51A*	F_HFOSCLP	Low-Power Optimized HFINTOSC Frequency	—	2	—	MHz	FRQ = `'b0001` ⁽³⁾
OS52*	F_MFOSC	Internal Calibrated MFINTOSC Frequency	—	500	—	kHz
OS53*	F_LFOSC	Internal LFINTOSC Frequency	27.9	31	34.1	kHz
OS54*	T_HFOSCST	HFINTOSC Wake-up from Sleep Start-up Time	—	19	—	μs	VREGPM = `00` System Clock at 4 MHz
OS54A*			—	30	—	μs	VREGPM = `01` System Clock at 4 MHz
OS54B*			—	115	—	μs	VREGPM = `10` System Clock at 4 MHz
OS54C*			—	120	—	μs	VREGPM = `11` System Clock at 4 MHz
OS56*	T_LFOSCST	LFINTOSC Wake-up from Sleep Start-up Time	—	900	—	μs	VREGPM = `1x` System Clock at 31 KHz (LFINTOSC)
OS57*	%_CAL	OSCTUNE Step Size		0.25		%
* 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: To ensure these oscillator frequency tolerances, V_DD and V_SS must be capacitively decoupled as close to the device as possible. 0.1 μF and 0.01 μF values in parallel are recommended. See the figure below. Frequencies are not calibrated.

45.4.2 Internal Oscillator Parameters(1)