K40P81M100SF2_11 Datasheet, PDF (24/63 Pages) Freescale Semiconductor, Inc – Up to 100 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz

Peripheral operating requirements and behaviors
6.3.1 MCG specifications
Table 13. MCG specifications
Symbol Description
f_{ints_ft}
Internal reference frequency (slow clock) —
factory trimmed at nominal VDD and 25°C
f_{ints_t}
Internal reference frequency (slow clock) — user
trimmed
I_ints
Internal reference (slow clock) current
t_irefsts Internal reference (slow clock) startup time
Δ_{fdco_res_t} Resolution of trimmed DCO output frequency at
fixed voltage and temperature — using SCTRIM
and SCFTRIM
Δf_{dco_res_t} Resolution of trimmed DCO output frequency at
fixed voltage and temperature — using SCTRIM
only
Δf_{dco_t} Total deviation of trimmed average DCO output
frequency over voltage and temperature
Min.
—
31.25
—
—
—
—
—
Δf_{dco_t}
f_{intf_ft}
f_{intf_t}
I_intf
t_irefstf
f_{loc_low}
f_{loc_high}
f_{fll_ref}
f_dco
Total deviation of trimmed average DCO output
—
frequency over fixed voltage and temperature
range of 0–70°C
Internal reference frequency (fast clock) —
3.4
factory trimmed at nominal VDD and 25°C
Internal reference frequency (fast clock) — user
3
trimmed
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
(3/5) x
f_{ints_t}
(16/5) x
f_{ints_t}
FLL
FLL reference frequency range
31.25
DCO output
Low range (DRS=00)
20
frequency range
640 × f_{fll_ref}
Mid range (DRS=01)
40
1280 × f_{fll_ref}
Mid-high range (DRS=10)
60
1920 × f_{fll_ref}
High range (DRS=11)
80
2560 × f_{fll_ref}
Typ.
32.768
—
TBD
TBD
± 0.1
± 0.2
+ 0.5
- 1.0
± 0.5
—
—
TBD
TBD
—
—
—
20.97
41.94
62.91
83.89
Table continues on the next page...
Max.
—
39.0625
—
4
± 0.3
± 0.5
± 3.5
± TBD
4
5
—
TBD
—
—
39.0625
25
50
75
100
Unit
kHz
kHz
µA
µs
%f_dco
%f_dco
%f_dco
%f_dco
MHz
MHz
µA
µs
kHz
kHz
kHz
MHz
MHz
MHz
MHz
Notes
1
1
1
1
2, 3
K40 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
24
Preliminary
Freescale Semiconductor, Inc.