MCF51JU128VHS FREESCALE [Freescale Semiconductor, Inc], MCF51JU128VHS Datasheet - Page 21

• Manufacturer Part Number: MCF51JU128VHS
• Description: MCF51JU128
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

6.3
6.3.1 MCG specifications
Freescale Semiconductor, Inc.
Δ
Δf
Symbol
f
fdco_res_t
Δf
Δf
f
loc_high
f
t
dco_res_t
loc_low
f
t
f
f
f
ints_ft
irefsts
intf_ft
irefstf
fll_ref
ints_t
I
intf_t
I
ints
dco_t
dco_t
intf
Clock modules
Internal reference frequency (slow clock) —
factory trimmed at nominal VDD and 25 °C
Internal reference frequency (slow clock) — user
trimmed
Internal reference (slow clock) current
Internal reference (slow clock) startup time
Resolution of trimmed average DCO output
frequency at fixed voltage and temperature —
using SCTRIM and SCFTRIM
Resolution of trimmed average DCO output
frequency at fixed voltage and temperature —
using SCTRIM only
Total deviation of trimmed average DCO output
frequency over voltage and temperature
Total deviation of trimmed average DCO output
frequency over fixed voltage and temperature
range of 0–70°C
Internal reference frequency (fast clock) —
factory trimmed at nominal VDD and 25°C
Internal reference frequency (fast clock) — user
trimmed at nominal VDD and 25 °C
Internal reference (fast clock) current
Internal reference startup time (fast clock)
Loss of external clock minimum frequency —
RANGE = 00
Loss of external clock minimum frequency —
RANGE = 01, 10, or 11
FLL reference frequency range
Description
MCF51JU128 Advance Information Data Sheet, Rev. 1, 08/2011.
Table 14. MCG specifications
Table continues on the next page...
Preliminary
FLL
(16/5) x
(3/5) x
31.25
31.25
f
f
Min.
ints_t
ints_t
3.4
—
—
—
—
—
—
—
—
—
3
32.768
± 0.1
± 0.2
+ 0.5
± 0.5
TBD
TBD
- 1.0
TBD
TBD
Typ.
—
—
—
—
—
—
39.0625
39.0625
± TBD
± 0.3
± 0.5
± 3.5
Max.
TBD
—
—
—
—
—
4
4
5
%f
%f
%f
%f
MHz
MHz
Unit
kHz
kHz
kHz
kHz
kHz
µA
µA
µs
µs
dco
dco
dco
dco
Clock modules
Notes
1
2
2
2
2
1
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