SPC574S60 datasheet(48/77 Pages) STMICROELECTRONICS

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Electrical characteristics

SPC574Sx

48/77

DS10601 Rev 6

3.16

External oscillator (XOSC) electrical characteristics

Table 31. PLL0 electrical characteristics

Symbol

Parameter

Conditions(1)

Value

Unit

Min

Typ

Max

fPLLIN SR — PLL0 reference clock(2)

—8

—

MHz

ΔPLLIN SR —

PLL0 reference clock duty

cycle(2)

—30

—

fPLLOUT CC D PLL0 output clock frequency

—

4.762

—

625

MHz

fVCO

CC P VCO frequency

—

600

—

1250 MHz

tLOCK CC P PLL0 lock time

Stable oscillator (fPLLIN =16 MHz)

—

100

µs

ΔtSTJIT CC T PLL0 short term jitter

fsys maximum

–150

—

150

ΔtLTJIT CC T PLL0 long term jitter

fPLLIN = 16 MHz (resonator),

fPLLCLK @ 64 MHz

–1

—

IPLL

CC C PLL0 consumption

TA =25°C

—

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

2. 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 ΔPLLIN.

Table 32. External Oscillator electrical specifications(1)

Symbol

Parameter

Conditions

Value

Unit

Min

Max

fXTAL

D Crystal Frequency Range(2)

—4

MHz

—>8

—

>20

tcst

Crystal start-up time (3),(4)

TJ = 150 °C

—

trec

— Crystal recovery time(5)

——

0.5

VIHEXT

EXTAL input high voltage

(External Reference)

VREF = 0.28 × VDD_HV_IO

VREF +

0.6

—V

VILEXT

EXTAL input low

voltage(6),(7)

VREF = 0.28 × VDD_HV_IO

—VREF - 0.6

CS_EXTAL CC

Total on-chip stray

capacitance on EXTAL pin(8)

QFP

6.0

8.0

CS_XTAL CC

Total on-chip stray

capacitance on XTAL pin(8)

QFP

6.0

8.0

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