MC9S08QA2CDNE(2008) 查看數據表（PDF） - Freescale Semiconductor

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MC9S08QA2CDNE
(Rev.:2008)

8-bit HCS08 Central Processor Unit (CPU)

Freescale Semiconductor 

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

tIRST

—

60

100

Average internal reference frequency — untrimmed

fint_ut

25

32.7

41.66

Average internal reference frequency — trimmed

fint_t

31.25

—

39.06

DCO output frequency range — untrimmed

fdco_ut

12.8

16.8

21.33

DCO output frequency range — trimmed

fdco_t

16

—

20

Resolution of trimmed DCO output frequency at fixed voltage and

temperature2

Δfdco_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

Δfdco_t

— –1.0 to +0.5 ±2

±0.5

±1

FLL acquisition time 2,3

tAcquire

—

—

1.5

Long term jitter of DCO output clock (averaged over 2 ms interval)

CJitter

—

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

%fdco

%fdco

ms

%fdco

MC9S08QA4 Series, Rev. 2

Freescale Semiconductor

11

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