MK10FX128CMC7 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MK10FX128CMC7

K10 Sub-Family

Freescale Semiconductor 

Peripheral operating requirements and behaviors

6.3.2.2 Oscillator frequency specifications

Table 17. Oscillator frequency specifications

Symbol

fosc_lo

fosc_hi_1

fosc_hi_2

fec_extal

tdc_extal

tcst

Description

Oscillator crystal or resonator frequency — low

frequency mode (MCG_C2[RANGE]=00)

Oscillator crystal or resonator frequency — high

frequency mode (low range)

(MCG_C2[RANGE]=01)

Oscillator crystal or resonator frequency — high

frequency mode (high range)

(MCG_C2[RANGE]=1x)

Input clock frequency (external clock mode)

Input clock duty cycle (external clock mode)

Crystal startup time — 32 kHz low-frequency,

low-power mode (HGO=0)

Crystal startup time — 32 kHz low-frequency,

high-gain mode (HGO=1)

Crystal startup time — 8 MHz high-frequency

(MCG_C2[RANGE]=01), low-power mode

(HGO=0)

Crystal startup time — 8 MHz high-frequency

(MCG_C2[RANGE]=01), high-gain mode

(HGO=1)

Min.

32

3

8

—

40

—

—

—

—

Typ.

—

—

—

—

50

750

250

0.6

1

Max.

40

8

32

50

60

—

—

—

—

Unit

kHz

MHz

MHz

MHz

%

ms

ms

ms

ms

Notes

1, 2

3, 4

1. Other frequency limits may apply when external clock is being used as a reference for the FLL or PLL.

2. When transitioning from FBE to FEI mode, restrict the frequency of the input clock so that, when it is divided by FRDIV, it

remains within the limits of the DCO input clock frequency.

3. Proper PC board layout procedures must be followed to achieve specifications.

4. Crystal startup time is defined as the time between the oscillator being enabled and the OSCINIT bit in the MCG_S register

being set.

NOTE

The 32 kHz oscillator works in low power mode by default and

cannot be moved into high power/gain mode.

6.3.3 32 kHz oscillator electrical characteristics

This section describes the module electrical characteristics.

6.3.3.1 32 kHz oscillator DC electrical specifications

Table 18. 32kHz oscillator DC electrical specifications

Symbol

VBAT

RF

Description

Supply voltage

Internal feedback resistor

Min.

1.71

—

Table continues on the next page...

Typ.

—

100

Max.

3.6

—

Freescale Semiconductor, Inc.

K10 Sub-Family Data Sheet, Rev. 3, 6/2013.

Unit

V

MΩ

31

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