74.7.7 Main RC Oscillator

Table 74-51. Main RC Oscillator Characteristics
Symbol	Parameter	Conditions	Min	Max	Unit
V_DDIN33	Supply voltage range (VDDIN33) ⁽¹⁾	–	3.0	3.6	V
I_DDIN33	Current consumption (VDDIN33)⁽²⁾	–	–	200	μA
t_START	Start-up time⁽²⁾	–	–	15	μs
f₀	Nominal output frequency		12		MHz
f_ACC	Output frequency accuracy	0°C < T_J < +50°C	–	±2	%
		-20°C < T_J < +70°C⁽²⁾	–	±3	%
		Over the applicable T_J range	–	±5	%
df/dV	Output frequency drift with VDDIN33⁽²⁾	V_DDIN33: 3.0V to 3.6V	–	0.01	% / V
Duty	Output duty cycle	–	45	55	%

Note:

This oscillator is powered by the 2.5V regulated output of the VDDOUT25 regulator, which is supplied from VDDIN33.
Simulation data