C8051T630 Datasheet, PDF (27/221 Pages) Silicon Laboratories – Mixed-Signal Byte-Programmable EPROM MCU

C8051T630/1/2/3/4/5
Table 5.7. Internal High-Frequency Oscillator Electrical Characteristics
V_DD = 1.8 to 3.6 V; T_A = –40 to +85 °C unless otherwise specified. Use factory-calibrated settings.
Parameter
Conditions
Min
Typ
Max
Oscillator Frequency
Oscillator Supply Current 
(from V_DD)
IFCN = 11b
25 °C, V_DD = 3.0 V,
OSCICN.7 = 1,
OCSICN.5 = 0
24
24.5
25
—
450
700
Power Supply Variance
Temperature Variance
Constant Temperature
Constant Supply
—
±0.02
—
—
±20
—
Units
MHz
µA
%/V
ppm/°C
Table 5.8. Internal Low-Frequency Oscillator Electrical Characteristics
V_DD = 1.8 to 3.6 V; T_A = –40 to +85 °C unless otherwise specified. Use factory-calibrated settings.
Parameter
Conditions
Min
Typ
Max
Oscillator Frequency
Oscillator Supply Current 
(from V_DD)
Power Supply Variance
OSCLD = 11b
25 °C, V_DD = 3.0 V,
OSCLCN.7 = 1
Constant Temperature
72
80
88
—
3
6
—
±0.02
—
Temperature Variance
Constant Supply
—
±50
—
Units
kHz
µA
%/V
ppm/°C
Rev. 1.0
27