c8051t617 Silicon Laboratories, c8051t617 Datasheet - Page 112

• Manufacturer Part Number: c8051t617
• Description: Mixed Signal Byte-programmable Eprom Mcu
• Manufacturer: Silicon Laboratories

C8051T610/1/2/3/4/5/6/7
SFR Definition 13.3. CLKSEL: Clock Select
Table 13.1. Internal Oscillator Electrical Characteristics
V
112
Internal Oscillator Frequency
Internal Oscillator Supply
Current (from V
Supply Sensitivity
Temperature Sensitivity
DD
Bits7–1: Reserved. Read = 0000000b, Must Write = 0000000.
Bit0:
Reserved Reserved Reserved Reserved Reserved Reserved Reserved CLKSL0 00000000
= 1.8 to 3.6 V; –40 to +85 °C unless otherwise specified.
R/W
Bit7
Parameter
CLKSL0: System Clock Source Select Bit.
0: SYSCLK derived from the Internal Oscillator, and scales per the IFCN bits in register
OSCICN.
1: SYSCLK derived from the External Oscillator circuit.
DD
R/W
Bit6
)
R/W
Bit5
Constant Temperature
R/W
Bit4
Constant Supply
OSCICN.7 = 1
Conditions
Rev. 0.3
R/W
Bit3
R/W
Bit2
Min
24
—
—
—
R/W
Bit1
24.5
Typ
450
0.2
45
R/W
Bit0
Max
25
—
—
—
SFR Address:
Reset Value
0xA9
ppm/°C
Units
MHz
%/V
µA