MC9S08LL16 Datasheet, PDF (25/50 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit

3.8 External Oscillator (XOSCVLP) Characteristics
Refer to Figure 13 and Figure 14 for crystal or resonator circuits.
Electrical Characteristics
Table 11. XOSCVLP and ICS Specifications (Temperature Range = –40 to 85 °C Ambient)
Num C
Characteristic
Symbol Min
Typ¹ Max
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
1
C
Low range (RANGE = 0)
High range (RANGE = 1), high gain (HGO = 1)
High range (RANGE = 1), low power (HGO = 0)
Load capacitors
2
D
Low range (RANGE=0), low power (HGO=0)
Other oscillator settings
f_lo
32
—
38.4
f_hi
1
—
16
f_hi
1
—
8
C_1,C₂
See Note ²
See Note ³
Unit
kHz
MHz
MHz
Feedback resistor
3D
Low range, low power (RANGE=0, HGO=0)²
Low range, high gain (RANGE=0, HGO=1)
High range (RANGE=1, HGO=X)
R_F
—
—
—
10
—
—
MΩ
—
1
—
Series resistor —
Low range, low power (RANGE = 0, HGO = 0)²
Low range, high gain (RANGE = 0, HGO = 1)
4D
High range, low power (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
≥ 8 MHz
4 MHz
1 MHz
Crystal start-up time ⁴
Low range, low power
5 C Low range, high gain
High range, low power
High range, high gain
—
—
—
—
100
—
R_S
—
0
—
kΩ
—
0
0
—
0
10
—
0
20
t
—
600
—
CSTL
t
—
—
400
5
—
—
ms
CSTH
—
15
—
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
6 D ^{FEE mode}
FBE or FBELP mode
f_extal 0.03125 —
0
—
20 MHz
20 MHz
1 _{Data in Typical column was characterized at 3.0 V, 25°C or is typical recommended value.}
2 _{Load capacitors (C1,C2), feedback resistor (RF) and series resistor (RS) are incorporated internally when RANGE=HGO=0.}
3 _{See crystal or resonator manufacturer’s recommendation.}
4 _{Proper PC board layout procedures must be followed to achieve specifications.}
MC9S08LL16 Series MCU Data Sheet, Rev. 4
Freescale Semiconductor
25