Datasheet

MC9S08LL16 Series MCU Data Sheet, Rev. 7
Electrical Characteristics
Freescale Semiconductor28
Figure 14. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
Figure 15. Typical Crystal or Resonator Circuit: Low Range/Low Power
3.9 Internal Clock Source (ICS) Characteristics
Table 12. ICS Frequency Specifications (Temperature Range = –40 to 85°C Ambient)
Num C Characteristic Symbol Min Typ
1
Max Unit
1P
Average internal reference frequency — factory trimmed at
VDD = 3.6 V and temperature = 25
° C
f
int_ft
—32.768 —kHz
2 P Average internal reference frequency - trimmed
f
int_t
31.25 — 39.063 kHz
3 T Internal reference start-up time
t
IRST
—— 6μs
4 P DCO output frequency range - untrimmed
f
dco_ut
12.8 16.8 21.33 MHz
5 P DCO output frequency range - trimmed
f
dco_t
16 — 20 MHz
6C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (using FTRIM)
Δf
dco_res_t
— ±0.1 ±0.2
%f
dco
7C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (not using FTRIM)
Δf
dco_res_t
— ±0.2 ±0.4
%f
dco
8C
Total deviation from trimmed DCO output frequency over
voltage and temperature
Δf
dco_t
—
+ 0.5
–1.0
±2
%f
dco
XOSCVLP
EXTAL XTAL
Crystal or Resonator
R
S
C
2
R
F
C
1
XOSCVLP
EXTAL XTAL
Crystal or Resonator