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

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MCF51JF128
(Rev.:2011)

Embedded - Microcontrollers

Freescale Semiconductor 

Clock modules

6.3 Clock modules

6.3.1 MCG specifications

Table 13. MCG specifications

Symbol Description

fints_ft

Internal reference frequency (slow clock) —

factory trimmed at nominal VDD and 25°C

fints_t

Internal reference frequency (slow clock) — user

trimmed

Iints

Internal reference (slow clock) current

tirefsts Internal reference (slow clock) startup time

Δfdco_res_t Resolution of trimmed DCO output frequency at

fixed voltage and temperature — using SCTRIM

and SCFTRIM

Δfdco_res_t Resolution of trimmed DCO output frequency at

fixed voltage and temperature — using SCTRIM

only

Δfdco_t Total deviation of trimmed average DCO output

frequency over voltage and temperature

Min.

—

31.25

—

—

—

—

—

Δfdco_t

fintf_ft

fintf_t

Iintf

tirefstf

floc_low

floc_high

ffll_ref

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

fints_t

(16/5) x

fints_t

FLL

FLL reference frequency range

31.25

Typ.

32.768

—

TBD

TBD

± 0.1

± 0.2

+ 0.5

- 1.0

± 0.5

—

—

TBD

TBD

—

—

—

Table continues on the next page...

Max.

—

39.0625

—

4

± 0.3

± 0.5

± 3.5

± TBD

4

5

—

TBD

—

—

39.0625

Unit

kHz

kHz

µA

µs

%fdco

%fdco

%fdco

%fdco

MHz

MHz

µA

µs

kHz

kHz

kHz

Notes

1

1

1

1

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

Freescale Semiconductor, Inc.

Preliminary

21

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