SPC564BXX datasheet(80/118 Pages) STMICROELECTRONICS

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Electrical Characteristics

SPC564Bxx - SPC56ECxx

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Doc ID 17478 Rev 4

4.16

Slow internal RC oscillator (128 kHz) electrical

characteristics

The device provides a 128 kHz low power internal RC oscillator. This can be used as the

reference clock for the RTC module.

Table 40.

Fast internal RC oscillator (16 MHz) electrical characteristics

Symbol

Parameter

Conditions(1)

Value(2)

Unit

Min

Typ

Max

fFIRC

CC P Fast internal RC oscillator high

frequency

TA = 25 °C, trimmed

—

MHz

SR —

—

IFIRCRUN

(3) CC T

Fast internal RC oscillator high

frequency current in running

mode

TA = 25 °C, trimmed

—

200

µA

IFIRCPWD CC

Fast internal RC oscillator high

frequency current in power

down mode

TA = 25 °C

—

100

DTA = 55 °C

—

200

DTA = 125 °C

—

µA

IFIRCSTOP CC T

Fast internal RC oscillator high

frequency and system clock

current in stop mode

TA = 25 °C

sysclk = off

—

500

—

µA

sysclk = 2 MHz

—

600

—

sysclk = 4 MHz

—

700

—

sysclk = 8 MHz

—

900

—

sysclk = 16 MHz

—

1250

—

TFIRCSU

Fast internal RC oscillator start-

up time

TA = 55 °C

VDD = 5.0 V ± 10%

—

2.0

µs

—VDD = 3.3 V ± 10%

—

TA = 125 °C

VDD = 5.0 V ± 10%

—

2.0

—VDD = 3.3 V ± 10%

—

ΔFIRCPRE CC C

Fast internal RC oscillator

precision after software

trimming of fFIRC

TA = 25 °C

−1—

ΔFIRCTRIM CC C

Fast internal RC oscillator

trimming step

TA = 25 °C

—

1.6

ΔFIRCVAR CC C

Fast internal RC oscillator

variation over temperature and

supply with respect to fFIRC at

TA = 25 °C in high-frequency

configuration

—

−5—

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

All values need to be confirmed during device validation.

This does not include consumption linked to clock tree toggling and peripherals consumption when RC oscillator is ON.

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