MC9S08DZ128 Datasheet, PDF (435/458 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
A.10 External Oscillator (XOSC) Characteristics
Table A-11. 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)
Low range (RANGE = 0)
1C
High range (RANGE = 1) FEE or FBE mode ²
High range (RANGE = 1) PEE or PBE mode ³
High range (RANGE = 1, HGO = 1) BLPE mode
High range (RANGE = 1, HGO = 0) BLPE mode
2 – Load capacitors
f_lo
f_hi-fll
f_hi-pll
f_hi-hgo
f_hi-lp
C₁
C₂
32
—
38.4 kHz
1
—
5
MHz
1
—
16 MHz
1
—
16 MHz
1
—
8
MHz
See crystal or resonator
manufacturer’s recommendation.
Feedback resistor
3 – Low range (32 kHz to 38.4 kHz)
High range (1 MHz to 16 MHz)
R_F
—
10
—
MΩ
—
1
—
MΩ
Series resistor
Low range, low gain (RANGE = 0, HGO = 0)
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)
≥ 8 MHz
4 MHz
1 MHz
—
0
—
—
100
—
—
0
—
R_S
kΩ
—
0
0
—
0
10
—
0
20
Crystal start-up time ⁴
Low range, low gain (RANGE = 0, HGO = 0)
t
CSTL-LP
—
200
—
5 T Low range, high gain (RANGE = 0, HGO = 1)
t
CSTL-HGO
—
400
—
ms
High range, low gain (RANGE = 1, HGO = 0) ⁵
t
CSTH-LP
—
5
—
High range, high gain (RANGE = 1, HGO = 1) ⁵
t
CSTH-HGO
—
20
—
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
FEE or FBE mode ²
6T
PEE or PBE mode ³
0.03125 —
f_extal
1
—
5
MHz
16
BLPE mode
0
—
40
1 _{Data in Typical column was characterized at 3.0 V, 25°C or is typical recommended value.}
2 _{When MCG 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 _{When MCG is configured for PEE or PBE mode, input clock source must be divisible using RDIV to within the range of 1 MHz}
to 2 MHz.
4 _{This parameter is characterized and not tested on each device. Proper PC board layout procedures must be followed to achieve}
specifications. This data varies based on crystal manufacturer and board design. The crystal should be characterized by the
crystal manufacturer.
5 _{4 MHz crystal}
MC9S08DZ128 Series Data Sheet, Rev. 1
Freescale Semiconductor
435