mc9s08qa4 Freescale Semiconductor, Inc, mc9s08qa4 Datasheet - Page 11

• Manufacturer Part Number: mc9s08qa4
• Description: Mc9s08qa4 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

1
2
3
Internal reference start-up time
Average internal reference frequency — untrimmed
Average internal reference frequency — trimmed
DCO output frequency range — untrimmed
DCO output frequency range — trimmed
Resolution of trimmed DCO output frequency at fixed voltage and
temperature
Total deviation of DCO output from trimmed frequency
FLL acquisition time
Long term jitter of DCO output clock (averaged over 2 ms interval)
1
2
3
4
3.7
Freescale Semiconductor
At 8 MHz over full voltage and temperature range
At 8 MHz and 3.6 V from 0 to 70°C
Data in Typical column was characterized at 3.0 V, 25°C, or is typical recommended value.
This parameter is characterized and not tested on each device.
This specification applies to any time the FLL reference source or reference divider is changed, trim value changed.
3 V values are 100% tested; 2 V values are characterized but not tested.
Typicals are measured at 25°C.
Does not include any DC loads on port pins.
Most customers are expected to find that auto-wakeup from a stop mode can be used instead of the higher current wait mode.
Internal Clock Source (ICS) Characteristics
2
2,3
Table 8. ICS Specifications (Temperature Range = –40 to 85°C Ambient)
Characteristic
MC9S08QA4 Series, Rev. 2
2
Δf
Symbol
t
Δf
f
dco_res_t
C
Acquire
f
f
t
dco_ut
f
int_ut
dco_t
IRST
int_t
dco_t
Jitter
31.25
12.8
Min
—
25
16
—
—
—
—
–1.0 to +0.5
Typical
32.7
16.8
±0.1
±0.5
0.02
60
—
—
—
Electrical Characteristics
1
41.66
39.06
21.33
Max
±0.2
100
1.5
0.2
20
±2
±1
%f
%f
%f
MHz
MHz
Unit
kHz
kHz
ms
μs
dco
dco
dco
11