43.28 FRC Clock AC Electrical Specifications

Table 43-37. FRC Clock AC Electrical Specifications
AC Characteristics			Standard Operating Conditions: V_DD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ T_A ≤ +85°C for Industrial Temp -40°C ≤ T_A ≤ +125°C for Extended Temp
Param. No.	Symbol	Characteristics	Min.	Typ	Max.	Units	Conditions
FRC_1	F20	FRC accuracy	—	±0.9	—	%	-40°C ≤ T_A≤ +85°C
FRC_1	F20	FRC accuracy	—	±5	—	%	-40°C ≤ T_A≤ +125°C
FRC_2	F_INT	FRC frequency	—	8	—	MHz	—
FRC_3	T_INT	FRC period	—	1/FINT	—	ns	—
FRC_4	T_SUFRC	FRC start-up time	—	9.82	13.46	µs	—
FRC_5	T_STABLE	FRC stabilization period	—	8 x TINT	—	ns	8 clocks
FRC_9	D_CYCLE	Duty cycle of square wave output	—	50	—	%	—
FRC_14	C_USE	User tune	-1.488	—	1.646	%	Rounded to three decimals
FRC_15	S_USE	User tune step size	0.0418	0.047	0.098	%	Rounded to three decimals
FRC_16	IFRC_ON	Current consumed when oscillator is running	—	262	375	µA	FOSC = 8.00 MHz; V_DDCORE = 1.2 V; T_J = 105°C
Note: Data in the “Typ” column is at 3.3V, T_A = +25°C unless otherwise stated. Data for this parameter is Preliminary. This parameter is characterized but not tested in manufacturing. This assumes osctune[5:0] = 000000 and test calibration is complete. This parameter is characterized but not tested in manufacturing.