Datasheet

Appendix A Electrical Characteristics
MC9S08DZ60 Series Data Sheet, Rev. 4
Freescale Semiconductor 381
A.11 MCG Specifications
Table A-12. MCG Frequency Specifications (Temperature Range = –40 to 125°C Ambient)
Num C Rating Symbol Min Typical Max Unit
1P
Internal reference frequency - factory trimmed at
V
DD
= 5 V and temperature = 25 °C
f
int_ft
— 31.25 — kHz
2P
Average internal reference frequency -
untrimmed
1
f
int_ut
25 32.7 41.66 kHz
3P
Average internal reference frequency - user
trimmed
f
int_t
31.25 — 39.0625 kHz
4 D Internal reference startup time
t
irefst
— 60 100 us
5—
DCO output frequency range - untrimmed
1
value provided for reference: f
dco_ut
= 1024 X
f
int_ut
f
dco_ut
25.6 33.48 42.66 MHz
6 P DCO output frequency range - trimmed
f
dco_t
32 — 40 MHz
7C
Resolution of trimmed DCO output frequency at
fixed voltage and temperature (using FTRIM)
Δf
dco_res_t
— ± 0.1 ± 0.2
%f
dco
8C
Resolution of trimmed DCO output frequency at
fixed voltage and temperature (not using FTRIM)
Δf
dco_res_t
— ± 0.2 ± 0.4
%f
dco
9P
Total deviation of trimmed DCO output frequency
over voltage and temperature
Δf
dco_t
—
+ 0.5
-1.0
± 2
%f
dco
10 C
Total deviation of trimmed DCO output frequency
over fixed voltage and temperature range of
0-70
°C
Δf
dco_t
— ± 0.5 ± 1
%f
dco
11 C
FLL acquisition time
2
t
fll_acquire
—— 1ms
12 D
PLL acquisition time
3
t
pll_acquire
—— 1ms
13 C
Long term Jitter of DCO output clock (averaged
over 2ms interval)
4
C
Jitter
— 0.02 0.2
%f
dco
14 D VCO operating frequency
f
vco
7.0 — 55.0 MHz
15 D PLL reference frequency range
f
pll_ref
1.0 — 2.0 MHz
16 T
RMS frequency variation of a single clock cycle
measured 2 ms after reference edge.
5
f
pll_cycjit_2ms
—
0.590
4
—
%f
pll
17 T
Maximum frequency variation averaged over
2 ms window.
f
pll_maxjit_2ms
— 0.001 —
%f
pll
MCU
EXTAL XTAL
Crystal or Resonator
R
S
C
2
R
F
C
1