Datasheet

Appendix A Electrical Characteristics
MC9S08SG32 Data Sheet, Rev. 8
306 Freescale Semiconductor
A.8 External Oscillator (XOSC) Characteristics
Table A-8. Oscillator Electrical Specifications (Temperature Range = –40 to 125°C Ambient)
# C Rating Symbol Min Typ
1
Max Unit
Temp
Rated
Standard
AEC Grade 0
1C
Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)
Low range (RANGE = 0)
f
lo
32 — 38.4 kHz
♦ ♦
High range (RANGE = 1) FEE or FBE mode
2
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,
C
2
See crystal or resonator
manufacturer’s recommendation.
3—
Feedback resistor
R
F
Low range (32 kHz to 100 kHz)
—10—MΩ
♦ ♦
High range (1 MHz to 16 MHz)
—1—MΩ
♦ ♦
4—
Series resistor
R
S
Low range, low gain (RANGE = 0, HGO = 0)
—0—kΩ
♦ ♦
Low range, high gain (RANGE = 0, HGO = 1)
— 100 — kΩ
♦ ♦
High range, low gain (RANGE = 1, HGO = 0)
—0—kΩ
♦ ♦
High range, high gain (RANGE = 1, HGO = 1)
≥ 8 MHz
—0 0kΩ
♦ ♦
4 MHz
— 0 10 kΩ
♦ ♦
1 MHz
— 0 20 kΩ
♦ ♦
5T
Crystal start-up time
3
Low range, low gain (RANGE = 0, HGO = 0)
t
CSTL-LP
— 200 — ms
♦ ♦
Low range, high gain (RANGE = 0, HGO = 1)
t
CSTL-HGO
— 400 — ms
♦ ♦
High range, low gain (RANGE = 1, HGO = 0)
4
t
CSTH-LP
—5—ms
♦ ♦
High range, high gain (RANGE = 1, HGO = 1)
4
t
CSTH-HGO
—20—ms
♦ ♦
6T
Square wave input clock frequency (EREFS = 0,
ERCLKEN = 1)
FEE or FBE mode
2
f
extal
0.03125 — 5 MHz
♦ ♦
FBELP mode
0 — 40 MHz
♦
—
FBELP mode
0 — 36 MHz —
♦