MC9S08QA4_09 Datasheet, PDF (11/32 Pages) Freescale Semiconductor, Inc – Technical Data

Electrical Characteristics
1 _{3 V values are 100% tested; 2 V values are characterized but not tested.}
2 _{Typicals are measured at 25 °C.}
3 _{Does not include any DC loads on port pins.}
4 _{Most customers are expected to find that auto-wakeup from a stop mode can be used instead of the higher current wait mode.}
3.7 Internal Clock Source (ICS) Characteristics
Table 8. ICS Specifications (Temperature Range = –40 to 85°C Ambient)
Characteristic
Symbol
Min
Typical¹
Max
Internal reference start-up time
t_IRST
—
60
100
Average internal reference frequency — untrimmed
f_{int_ut}
25
32.7
41.66
Average internal reference frequency — trimmed
f_{int_t}
31.25
—
39.06
DCO output frequency range — untrimmed
f_{dco_ut}
12.8
16.8
21.33
DCO output frequency range — trimmed
f_{dco_t}
16
—
20
Resolution of trimmed DCO output frequency at fixed voltage and
temperature²
Δf_{dco_res_t}
—
±0.1
±0.2
Total deviation of DCO output from trimmed frequency²
At 8 MHz over full voltage and temperature range
At 8 MHz and 3.6 V from 0 to 70 °C
Δf_{dco_t}
—
–1.0 to 0.5
±2
±0.5
±1
FLL acquisition time ^2,3
t_Acquire
—
—
1.5
Long term jitter of DCO output clock (averaged over 2 ms interval)
C_Jitter
—
0.02
0.2
1 _{Data in Typical column was characterized at 3.0 V, 25 °C, or is typical recommended value.}
2 _{This parameter is characterized and not tested on each device.}
3 _{This specification applies to any time the FLL reference source or reference divider is changed, trim value changed.}
Unit
μs
kHz
kHz
MHz
MHz
%f_dco
%f_dco
ms
%f_dco
MC9S08QA4 Series MCU Data Sheet, Rev. 3
Freescale Semiconductor
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