SPC560D30X datasheet(58/90 Pages) STMICROELECTRONICS

58 / 90 page

Electrical characteristics

SPC560D30x, SPC56040Dx

58/90

Doc ID 16315 Rev 7

4.14

FMPLL electrical characteristics

The device provides a frequency-modulated phase-locked loop (FMPLL) module to

generate a fast system clock from the main oscillator driver.

4.15

Fast internal RC oscillator (16 MHz) electrical characteristics

The device provides a 16 MHz fast internal RC oscillator (FIRC). This is used as the default

clock at the power-up of the device.

Table 38.

FMPLL electrical characteristics

Symbol

Parameter

Conditions(1)

Value

Unit

Min

Typ

Max

fPLLIN

SR — FMPLL reference clock(2)

—4

—

MHz



PLLIN

SR —

FMPLL reference clock duty

cycle(2)

—40

—

fPLLOUT CC D FMPLL output clock frequency

—

MHz

fVCO

(3)

CC P

VCO frequency without

frequency modulation

—256

—

512

MHz

VCO frequency with frequency

modulation

—245

—

533

fCPU

SR — System clock frequency

—

MHz

fFREE

CC P Free-running frequency

—

150

MHz

tLOCK

CC P FMPLL lock time

Stable oscillator (fPLLIN = 16 MHz)

—

100

µs

t

LTJIT

CC — FMPLL long term jitter

fPLLIN = 16 MHz (resonator),

fPLLCLK at 48 MHz, 4000 cycles

—

IPLL

CC C FMPLL consumption

TA = 25 °C

—

VDD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified.

PLLIN clock retrieved directly from FXOSC clock. Input characteristics are granted when oscillator is used in functional

mode. When bypass mode is used, oscillator input clock should verify fPLLIN and PLLIN.

Frequency modulation is considered ±4%.

Table 39.

Fast internal RC oscillator (16 MHz) electrical characteristics

Symbol

Parameter

Conditions(1)

Value

Unit

Min

Typ

Max

fFIRC

CC P Fast internal RC oscillator high

frequency

TA = 25 °C, trimmed

—

MHz

SR —

—

IFIRCRUN

(2) CC T

Fast internal RC oscillator high

frequency current in running

mode

TA = 25 °C, trimmed

—

200

µA

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