mc9s08sc4 Freescale Semiconductor, Inc, mc9s08sc4 Datasheet - Page 18

• Manufacturer Part Number: mc9s08sc4
• Description: Mc9s08sc4 8-bit Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

1
2
3
Num C
Chapter 3 Electrical Characteristics
3.9
18
10
11
12
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
interval.
—
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
T Internal reference frequency - untrimmed
P Internal reference frequency - user trimmed
T Internal reference startup time
Internal reference frequency - factory trimmed
at V
DCO output frequency range - untrimmed
value provided for reference assumes:
fdco_ut = 1024 x 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 3-9. ICS Frequency Specifications (Temperature Range = –40 to 125°C Ambient)
DD
= 5 V and temperature = 25
DD
int_ut
2
and V
Rating
SS
and variation in crystal oscillator frequency increase the C
C
MC9S08SC4 MCU Series Data Sheet, Rev. 4
1
EXTAL
°
C
°
1
1
C to 70
Crystal or Resonator
°
MCU
C
R
3
F
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
XTAL
R
S
31.25
C
25.6
Min
—
25
—
32
—
—
—
—
—
—
2
Typical
31.25
36.86
+ 0.5
– 1.0
± 0.1
± 0.2
± 0.5
0.02
Jitter
36
—
—
—
—
Freescale Semiconductor
percentage for a given
39.0625
41.66
42.66
± 0.2
± 0.4
± 2.0
Max
± 1
0.2
40
—
6
1
BUS
.
%f
%f
%f
%f
%f
MHz
MHz
Unit
kHz
kHz
kHz
ms
μs
dco
dco
dco
dco
dco