MC9S08SG32 Datasheet, PDF (304/328 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Appendix A Electrical Characteristics
A.8 External Oscillator (XOSC) Characteristics
Table A-8. Oscillator Electrical Specifications (Temperature Range = –40 to 125°C Ambient)
Temp
Rated
#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, HGO = 1) FBELP mode
High range (RANGE = 1, HGO = 0) FBELP mode
f_lo
f_hi
f_hi-hgo
f_hi-lp
2 — Load capacitors
C_1, C₂
Feedback resistor
32
—
38.4 kHz ♦ ♦
1
—
5 MHz ♦ ♦
1
—
16 MHz ♦ ♦
1
—
8 MHz ♦ ♦
See crystal or resonator
manufacturer’s recommendation.
3—
Low range (32 kHz to 100 kHz)
High range (1 MHz to 16 MHz)
Series resistor
R_F
—
10
— MΩ ♦ ♦
—
1
— MΩ ♦ ♦
4—
Low range, low gain (RANGE = 0, HGO = 0)
Low range, high gain (RANGE = 0, HGO = 1)
High range, low gain (RANGE = 1, HGO = 0)
High range, high gain (RANGE = 1, HGO = 1)
—
0
—
kΩ ♦ ♦
—
100
—
kΩ ♦ ♦
—
0
—
kΩ ♦ ♦
R_S
≥ 8 MHz
4 MHz
1 MHz
Crystal start-up time ³
—
0
0
kΩ ♦ ♦
—
0
10
kΩ ♦ ♦
—
0
20
kΩ ♦ ♦
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)⁴
High range, high gain (RANGE = 1, HGO = 1)⁴
Square wave input clock frequency (EREFS = 0,
ERCLKEN = 1)
6T
FEE or FBE mode ²
FBELP mode
FBELP mode
t
CSTL-LP
—
200
t
CSTL-HGO
—
400
t
CSTH-LP
—
5
t
CSTH-HGO
—
20
0.03125 —
f_extal
0
—
0
—
— ms ♦ ♦
— ms ♦ ♦
— ms ♦ ♦
— ms ♦ ♦
5 MHz ♦ ♦
40 MHz ♦ —
36 MHz — ♦
MC9S08SG32 Data Sheet, Rev. 7
304
Freescale Semiconductor