MC9S08QE32_09 Datasheet, PDF (19/46 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

EXTAL
XOSCVLP
R_F
XTAL
R_S
Electrical Characteristics
Crystal or Resonator
C₁
C₂
Figure 11. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
EXTAL
XOSCVLP
XTAL
Crystal or Resonator
Figure 12. Typical Crystal or Resonator Circuit: Low Range/Low Power
3.9 Internal Clock Source (ICS) Characteristics
Table 11. ICS Frequency Specifications (Temperature Range = –40 to 85°C Ambient)
Num C
Characteristic
Symbol Min Typical¹ Max Unit
1 P Average internal reference frequency — factory trimmed
f_{int_t}
— 32.768 —
kHz
2 C Average internal reference frequency — untrimmed
f_{int_ut}
31.25
—
39.06 kHz
3 T Internal reference start-up time
t_IRST
—
5
10
μs
P
DCO output frequency
4 P _trimmed2
P
Low range (DFR = 00)
Mid range (DFR = 01)
High range (DFR = 10)
16
—
20
f_{dco_u}
32
—
40 MHz
48
—
60
P _{DCO output frequency}²
5 P ^{reference = 32768 Hz}
and
P DMX32 = 1
Low range (DFR = 00)
Mid range (DFR = 01)
High range (DFR = 10)
—
f_{dco_DMX32}
—
—
19.92
39.85
59.77
—
— MHz
—
6
C
Resolution of trimmed DCO output frequency at fixed voltage
and temperature (using FTRIM)
Δf_{dco_res_t}
—
±0.1
±0.2 %f_dco
7
C
Resolution of trimmed DCO output frequency at fixed voltage
and temperature (not using FTRIM)
Δf_{dco_res_t}
—
±0.2
±0.4 %f_dco
MC9S08QE32 Series MCU Data Sheet, Rev. 6
Freescale Semiconductor
19