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| 型号： | MK20X256VMC100 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | FLASH, 100 MHz, RISC MICROCONTROLLER, PBGA121 |
| 封装： | 8 X 8 MM, MAPBGA-121 |
| 文件页数： | 19/68页 |
| 文件大小： | 1818K |
| 代理商： | MK20X256VMC100 |
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Table 13. MCG specifications (continued)
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
fdco_t_DMX3
2
DCO output
frequency
Low range (DRS=00)
732 × ffll_ref
—
23.99
—
MHz
Mid range (DRS=01)
1464 × ffll_ref
—
47.97
—
MHz
Mid-high range (DRS=10)
2197 × ffll_ref
—
71.99
—
MHz
High range (DRS=11)
2929 × ffll_ref
—
95.98
—
MHz
Jcyc_fll
FLL period jitter
—
TBD
ps
Jacc_fll
FLL accumulated jitter of DCO output over a 1s
time window
—
TBD
ps
tfll_acquire
FLL target frequency acquisition time
—
1
ms
PLL
fvco
VCO operating frequency
48.0
—
100
MHz
Ipll
PLL operating current
PLL @ 96 MHz (fosc_hi_1=8MHz,
fpll_ref=2MHz, VDIV multiplier=48)
—
950
—
A
fpll_ref
PLL reference frequency range
2.0
—
4.0
MHz
Jcyc_pll
PLL period jitter
—
400
—
ps
Jacc_pll
PLL accumulated jitter over 1s window
—
TBD
—
ps
Dlock
Lock entry frequency tolerance
± 1.49
—
± 2.98
%
Dunl
Lock exit frequency tolerance
± 4.47
—
± 5.97
%
tpll_lock
Lock detector detection time
—
0.15 +
1075(1/
fpll_ref)
ms
1. This parameter is measured with the internal reference (slow clock) being used as a reference to the FLL (FEI clock
mode).
2. These typical values listed are with the slow internal reference clock (FEI) using factory trim and DMX32=0.
3. The resulting system clock frequencies should not exceed their maximum specified values. The DCO frequency deviation
(
Δfdco_t) over voltage and temperature should be considered.
4. These typical values listed are with the slow internal reference clock (FEI) using factory trim and DMX32=1.
5. The resulting clock frequency must not exceed the maximum specified clock frequency of the device.
6. This specification was obtained at TBD frequency.
7. This specification applies to any time the FLL reference source or reference divider is changed, trim value is changed,
DMX32 bit is changed, DRS bits are changed, or changing from FLL disabled (BLPE, BLPI) to FLL enabled (FEI, FEE,
FBE, FBI). If a crystal/resonator is being used as the reference, this specification assumes it is already running.
8. Excludes any oscillator currents that are also consuming power while PLL is in operation.
9. This specification was obtained using a Freescale developed PCB. PLL jitter is dependent on the noise characteristics of
each PCB and results will vary.
10. This specification was obtained at internal frequency of TBD.
11. This specification applies to any time the PLL VCO divider or reference divider is changed, or changing from PLL disabled
(BLPE, BLPI) to PLL enabled (PBE, PEE). If a crystal/resonator is being used as the reference, this specification assumes
it is already running.
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
26
Preliminary
Freescale Semiconductor, Inc.
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