TWR-MCF51CN Freescale, TWR-MCF51CN Datasheet - Page 21

• Manufacturer Part Number: TWR-MCF51CN
• Manufacturer: Freescale

Specifications of TWR-MCF51CN

• Lead Free Status / RoHS Status: Compliant

3.9
Freescale Semiconductor
Num C
2
3
4
5
6
7
1
—
D Internal reference startup time
C
P
P
P
P DCO output frequency range - trimmed
Internal reference frequency - factory
trimmed at V
temperature = 25
Average internal reference frequency -
untrimmed
Average internal reference frequency -
user trimmed
DCO output frequency range -
untrimmed
value provided for reference:
f
Resolution of trimmed DCO output
frequency at fixed voltage and
temperature (using FTRIM)
dco_ut
Table 11. MCG Frequency Specifications (Temperature Range = –40 to 125 °C Ambient)
Multipurpose Clock Generator (MCG) Specifications
Figure 11. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
= 1024 X f
1
1
Figure 12. Typical Crystal or Resonator Circuit: Low Range/Low Gain
DD
Rating
= and
int_ut
°C
MCF51CN128 ColdFire Microcontroller Data Sheet, Rev. 4
C
1
EXTAL
EXTAL
Crystal or Resonator
Crystal or Resonator
Δf
Symbol
f
dco_res_t
f
f
f
t
dco_ut
XOSC
XOSC
f
int_ut
dco_t
int_ft
irefst
int_t
R
F
31.25
25.6
XTAL
XTAL
Min
25
32
—
—
—
R
S
C
2
Typical
32.768
33.48
± 0.1
60
—
—
—
Electrical Characteristics
41.66
39.06
42.66
± 0.2
Max
100
40
—
%f
MHz
MHz
Unit
kHz
kHz
kHz
us
dco
21