MC9S08JM16 Datasheet, PDF (361/386 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
A.10 External Oscillator (XOSC) Characteristics
Table A-10. Oscillator Electrical Specifications (Temperature Range = –40 to 85°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
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
C_1, 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
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)
R_S
—
0
≥ 8 MHz
—
0
4 MHz
—
0
1 MHz
—
0
Crystal start-up time ⁴
Low range, low gain (RANGE = 0, HGO = 0)
5T
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)⁵
High range, high gain (RANGE = 1, HGO = 1)⁵
t
CSTL-LP
—
200
t
CSTL-HGO
—
400
t
CSTH-LP
—
5
t
CSTH-HGO
—
15
Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
6T
FEE or FBE mode ²
PEE or PBE mode ³
f_extal
0.03125
1
—
—
BLPE mode
0
—
—
—
—
kΩ
0
10
20
—
—
ms
—
—
5
16
MHz
40
1 _{Typical data was characterized at 3.0 V, 25°C or is recommended value.}
2 _{When MCG is configured for FEE or FBE mode, input clock source must be divided 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 divided 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.
5 _{4 MHz crystal.}
EXTAL
MCU
XTAL
R_F
R_S
C₁
Crystal or Resonator
C₂
MC9S08JM16 Series Data Sheet, Rev. 2
Freescale Semiconductor
361