參數(shù)資料
型號： MC9S08QE8CPG
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP16
封裝： ROHS COMPLIANT, PLASTIC, DIP-16
文件頁數(shù)： 11/52頁
文件大?。?/td> 1273K
代理商： MC9S08QE8CPG
Electrical Characteristics
MC9S08QE8 Series Data Sheet, Rev. 8
Freescale Semiconductor
19
Figure 14. Deviation of DCO Output from Trimmed Frequency (20 MHz, 3.0 V)
7C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (not using FTRIM)
fdco_res_t
—
0.2
0.4
%fdco
8C
Total deviation of DCO output from trimmed frequency3
Over full voltage and temperature range
Over fixed voltage and temperature range of 0 to 70
C
fdco_t
—
–1.0 to 0.5
0.5
2
1
%fdco
10
C FLL acquisition time4
tAcquire
——
1
ms
11
C
Long term jitter of DCO output clock (averaged over 2-ms
interval)5
CJitter
—0.02
0.2
%fdco
1 Data in Typical column was characterized at 3.0 V, 25
C or is typical recommended value.
2 The resulting bus clock frequency should not exceed the maximum specified bus clock frequency of the device.
3 This parameter is characterized and not tested on each device.
4 This specification applies to any time the FLL reference source or reference divider is changed, trim value changed or
changing from FLL disabled (FBELP, FBILP) to FLL enabled (FEI, FEE, FBE, FBI). If a crystal/resonator is being used
as the reference, this specification assumes it is already running.
5 Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
Bus.
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal. Noise
injected into the FLL circuitry via VDD and VSS and variation in crystal oscillator frequency increase the CJitter percentage
for a given interval.
Table 11. ICS Frequency Specifications (Temperature Range = –40 to 85
C Ambient) (continued)
Num C
Characteristic
Symbol
Min.
Typical1
Max.
Unit
TBD
-2.00%
-1.50%
-1.00%
-0.50%
0.00%
0.50%
1.00%
-60
-40
-20
0
20
40
60
80
100
120
Temperature
D
evi
at
io
n
(
%
)
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