MC9S08DZ128 Datasheet, PDF (436/458 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
EXTAL
MCU
R_F
XTAL
R_S
C₁
Crystal or Resonator
C₂
A.11 MCG Specifications
Table A-12. MCG Frequency Specifications (Temperature Range = –40 to 125°C Ambient)
Num C
Rating
Internal reference frequency - factory trimmed at
1 P VDD=5.0V and temperature=25C
Symbol
f_{int_ft}
Min
Typical
Max
Unit
—
31.25
—
kHz
2 P _{Internal reference frequency - untrimmed} ¹
3 P Internal reference frequency - user trimmed
4 D Internal reference startup time
Low range (DRS=0,
—
DMX32=0)
DCO output frequency range - ^fdco_ut ^{= 512X f}int_ut
5
untrimmed ¹
Mid range (DRS=1,
—
DMX32=0)
f_{dco_ut} = 1024 X f_{int_ut}
Low range (DRS=0,
P
DMX32=0)
DCO output frequency range - ^fdco_ut ^{= 512X f}int_ut
6
trimmed²
Mid range (DRS=1,
P
DMX32=0)
f_{dco_ut} = 1024 X f_{int_ut}
7
C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (using FTRIM)
8
C
Resolution of trimmed DCO output frequency at fixed
voltage and temperature (not using FTRIM)
9
P
Total deviation of trimmed DCO output frequency over
voltage and temperature
Total deviation of trimmed DCO output frequency over
10 C _{fixed voltage and temperature range of 0 - 70 °C}
11 C _{FLL acquisition time} ³
12 D _{PLL acquisition time} ⁴
Long term Jitter of DCO output clock (averaged over 2mS
13 C _{interval) 5}
14 D VCO operating frequency
f_{int_ut}
f_{int_t}
t_irefst
f_{dco_ut}
f_{dco_t}
Δf_{dco_res_t}
Δf_{dco_res_t}
Δf_{dco_t}
Δf_{dco_t}
t_{fll_acquire}
t_{pll_acquire}
C_Jitter
f_vco
25
31.25
—
12.8
25.6
16
32
—
—
—
—
—
—
—
7.0
36
—
55
18.43
36.86
41.66 kHz
39.0625 kHz
100
us
21.33
42.66
MHz
—
—
± 0.1
± 0.2
+ 0.5
-1.0
± 0.5
—
—
0.02
—
20
MHz
40
± 0.2
± 0.4
±2
±1
1
1
0.2
55.0
%f_dco
%f_dco
%f_dco
%f_dco
ms
ms
%f_dco
MHz
MC9S08DZ128 Series Data Sheet, Rev. 1
436
Freescale Semiconductor