MC9S08SE8 FREESCALE [Freescale Semiconductor, Inc], MC9S08SE8 Datasheet - Page 21

• Manufacturer Part Number: MC9S08SE8
• Description: 8-Bit HCS08 Central Processor Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
1
2
3
4
5
Num
10
11
Data in Typical column was characterized at 3.0 V, 25 °C or is typical recommended value.
The resulting bus clock frequency should not exceed the maximum specified bus clock frequency of the device.
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 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.
Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
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 V
for a given interval.
7
8
Table 10. ICS Frequency Specifications (Temperature Range = –40 to 85°C Ambient) (continued)
C
C
C
C FLL acquisition time
C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (not using FTRIM)
Total deviation of DCO output from trimmed frequency
Long term jitter of DCO output clock (averaged over 2-ms
interval)
Over full voltage and temperature range
Over fixed voltage and temperature range of 0 to 70 °C
Figure 17. Deviation of DCO Output from Trimmed Frequency (20 MHz, 3.0 V)
-60
5
-40
4
Characteristic
DD
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MC9S08SE8 Series MCU Data Sheet, Rev. 3
and V
-0.50%
-1.00%
-1.50%
-2.00%
1.00%
0.50%
0.00%
SS
0
and variation in crystal oscillator frequency increase the C
Temperature
20
TBD
3
40
Δf
Symbol
t
Δf
dco_res_t
Acquire
C
60
dco_t
Jitter
80
Min.
—
—
—
—
–1.0 to 0.5
Typical
100
± 0.2
±0.5
0.02
Electrical Characteristics
—
1
120
Jitter
Max.
± 0.4
± 2
± 1
0.2
1
percentage
%f
%f
%f
Unit
Bus
ms
dco
dco
dco
.
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