S9S08SC4E0MTG Datasheet, PDF (17/31 Pages) Freescale Semiconductor, Inc – MC9S08SC4 8-Bit Microcontroller Data Sheet

Chapter 3 Electrical Characteristics
Table 3-8. Oscillator Electrical Specifications (Temperature Range = –40 to 125°C Ambient)
Num C
Rating
Symbol Min
Typ¹
Max Unit
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
1C
Low range (RANGE = 0)
High range (RANGE = 1) FEE or FBE mode ²
f_lo
32
—
38.4 kHz
f_hi
1
—
5
MHz
High range (RANGE = 1, HGO = 1) FBELP mode
f_hi-hgo
1
—
16 MHz
High range (RANGE = 1, HGO = 0) FBELP mode
f_hi-lp
1
—
8
MHz
2 — ^{Load capacitors}
C_1, C₂
See crystal or resonator
manufacturer’s recommendation
Feedback resistor
3—
Low range (32 kHz to 100 kHz)
High range (1 MHz to 16 MHz)
R_F
—
10
—
MΩ
—
1
—
Series resistor
Low range, low gain (RANGE = 0, HGO = 0)
—
0
—
Low range, high gain (RANGE = 0, HGO = 1)
—
100
—
4—
High range, low gain (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
—
0
—
R_S
kΩ
≥ 8 MHz
—
0
0
4 MHz
—
0
10
1 MHz
Crystal start-up time ³
—
0
20
Low range, low gain (RANGE = 0, HGO = 0)
t
CSTL-LP
—
200
—
5T
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)⁴
High range, high gain (RANGE = 1, HGO = 1)⁴
t
CSTL-HGO
—
400
—
ms
t
CSTH-LP
—
5
—
t
CSTH-HGO
—
15
—
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
6T
FEE or FBE mode ²
FBELP mode
f_extal 0.03125 —
0
—
5
MHz
40 MHz
1 _{Typical data was characterized at 5.0 V, 25°C or is recommended value.}
2 _{The input clock source must be divided 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. Proper PC board layout procedures must be followed to achieve}
specifications. This data will vary based upon the crystal manufacturer and board design. The crystal should be characterized
by the crystal manufacturer.
4 _{4 MHz crystal.}
MC9S08SC4 MCU Series Data Sheet, Rev. 4
Freescale Semiconductor
17