MC9S08LG32 Datasheet, PDF (23/47 Pages) Freescale Semiconductor, Inc – 8-bit HCS08 Central Processor Unit (CPU)

Electrical Characteristics
Table 10. Oscillator Electrical Specifications (Temperature Range = –40 °C to 105 °C Ambient) (continued)
Num C
Characteristic
Symbol Min Typ¹ Max Unit
3 D Feedback resistor
• Low range (32 kHz to 100 kHz)
• High range (1 MHz to 16 MHz)
R_F
MΩ
—
10
—
—
1
—
4 D Series resistor
• Low range, low gain (RANGE = 0, HGO = 0)
• Low range, high gain (RANGE = 0, HGO = 1)
R_S
kΩ
0
100
5 D Series resistor
• High range, low gain (RANGE = 1, HGO = 0)
• High range, high gain (RANGE = 1, HGO = 1)
R_S
≥8 MHz
4 MHz
1 MHz
kΩ
—
0
0
—
0
10
—
0
20
6
T Crystal start-up time^{3, 4}
• Low range (HGO = 0)
• Low range (HGO = 1)
• High range (HG0 = 0)⁵
• High range (HG0 = 1)⁵
ms
t_CSTL-LP
—
500
—
t_CSTL-HGO
—
3570
—
t_CSTH-LP
—
4
—
t_CSTH-HGO
—
4
—
7 D Square wave input clock frequency (EREFS = 0, ERCLKEN = 1) f_extal
• FEE or FBE mode²
0.03125 —
• BLPE mode
0
—
MHz
5
40
1 _{Data in Typical column was characterized at 5.0 V, 25 °C or is typical recommended value.}
2 _{When ICS is configured for FEE or FBE mode, input clock source must be divisible using RDIV to within the range of 31.25 kHz}
to 39.0625 kHz.
3 _{This parameter is characterized and not tested on each device.}
4 _{Proper PC board layout procedures must be followed to achieve specifications.}
5 _{4 MHz crystal}
EXTAL
XOSC
R_F
XTAL
R_S
Crystal or Resonator
C₁
C₂
Figure 15. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
MC9S08LG32 Series Data Sheet, Rev. 4
Freescale Semiconductor
23
Preliminary - Subject to Change Without Notice