mc9s08sg4 Freescale Semiconductor, Inc, mc9s08sg4 Datasheet - Page 295

• Manufacturer Part Number: mc9s08sg4
• Description: 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

1
2
3
A.9
Freescale Semiconductor
Nu
10
11
12
m
1
2
3
4
5
6
7
8
9
TRIM register at default value (0x80) and FTRIM control bit at default value (0x0).
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
given interval.
—
D Internal reference startup time
D DCO output frequency range - trimmed
D
D
D
D
D FLL acquisition time
D DCO output clock long term jitter (over 2mS interval)
P
P Internal reference frequency - untrimmed
P Internal reference frequency - user trimmed
C
Internal reference frequency - factory trimmed
at V
DCO output frequency range - untrimmed
value provided for reference: f
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (using FTRIM)
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (not using FTRIM)
Total deviation from actual trimmed DCO output
frequency over voltage and temperature
Total deviation of trimmed DCO output frequency over
fixed voltage and temperature range of 0
Internal Clock Source (ICS) Characteristics
Table A-9. ICS Frequency Specifications (Temperature Range = –40 to 125°C Ambient)
DD
= 5 V and temperature = 25
2
Rating
DD
and V
dco_ut
MC9S08SG8 MCU Series Data Sheet, Rev. 3
°
SS
= 1024
C
and variation in crystal oscillator frequency increase the C
°
1
C to 70
1
×
f
int_ut
°
C
3
Δf
Δf
Symbol
Δf
Δf
t
f
dco_res_t
dco_res_t
C
acquire
f
f
f
t
dco_ut
f
int_ut
dco_t
int_ft
irefst
int_t
dco_t
dco_t
Jitter
31.25
25.6
Min
—
25
—
32
—
—
—
—
—
Appendix A Electrical Characteristics
Typical
31.25
36.86
+ 0.5
– 1.0
± 0.1
± 0.2
± 0.5
0.02
36
55
—
—
Jitter
39.0625
41.66
42.66
± 0.2
± 0.4
Max
100
± 2
± 1
0.2
percentage for a
40
—
1
BUS
.
%f
%f
%f
%f
%f
MHz
MHz
kHz
kHz
kHz
Unit
ms
μs
295
dco
dco
dco
dco
dco