10.1.7.6 Main RC Oscillator

Table 10-45. Main RC Oscillator Characteristics
Symbol	Parameter	Conditions	Min	Typ	Max	Unit
V_DDIN33	Supply voltage range (VDDIN33)⁽¹⁾	–	3.0	–	3.6	V
I_DDIN33	Current consumption (VDDIN33)⁽²⁾	–	–	–	200	μA
t_START	Startup time⁽²⁾	–	–	–	15	μs
f₀	Nominal output frequency	–	–	12	–	MHz
f_ACC	Output frequency accuracy	0°C < T_J < +50°C -20°C < T_J < +70°C⁽²⁾ -40°C < T_J < +125°C	–	–	±2 ±3 ±5	%
df/dV	Output frequency drift with VDDIN33⁽²⁾	V_DDIN33 : 3.0V to 3.6V	–	–	0.01	%/V
f_STEP	Frequency trimming step size⁽²⁾	–	–	50	–	kHz
Duty	Output duty cycle	–	45	50	55	%

Note:

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