MCF51JF128(2011) データシートの表示（PDF） - Freescale Semiconductor

部品番号

コンポーネント説明

メーカー

MCF51JF128
(Rev.:2011)

Embedded - Microcontrollers

Freescale Semiconductor 

Table 13. MCG specifications (continued)

Clock modules

Symbol

Dlock

Dunl

tpll_lock

Description

Lock entry frequency tolerance

Lock exit frequency tolerance

Lock detector detection time

Min.

± 1.49

± 4.47

—

Typ.

—

—

—

Max.

± 2.98

± 5.97

0.15 +

1075(1/

fpll_ref)

Unit

%

%

ms

Notes

11

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. PLL period jitter is measured in RMS.

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.

6.3.2 Oscillator electrical specifications

This section provides the electrical characteristics of the module.

6.3.2.1 Oscillator DC electrical specifications

Table 14. Oscillator DC electrical specifications

Symbol

VDD

IDDOSC

Description

Supply voltage

Supply current — low-power mode (HGO=0)

• 32 kHz

• 1 MHz

• 4 MHz

• 8 MHz (only RANGE=01)

• 16 MHz

• 24 MHz

• 32 MHz

Min.

1.71

—

—

—

—

—

—

—

Typ.

—

500

100

200

300

950

1.2

1.5

Max.

3.6

—

—

—

—

—

—

—

Unit

Notes

V

1

nA

μA

μA

μA

μA

mA

mA

Table continues on the next page...

MCF51JF128 Advance Information Data Sheet, Rev. 2, 05/2011.

Freescale Semiconductor, Inc.

Preliminary

23

Share Link: