STM32F358XC datasheet(57/134 Pages) STMICROELECTRONICS

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STM32F358xC

Electrical characteristics

118

6.3.2

Operating conditions at power-up / power-down

The parameters given in Table 25 are derived from tests performed under the ambient

temperature condition summarized in Table 24.

6.3.3

Embedded reference voltage

The parameters given in Table 26 are derived from tests performed under ambient

temperature and VDD supply voltage conditions summarized in Table 24.

Table 25. Operating conditions at power-up / power-down

Symbol

Parameter

Conditions

Min

Max

Unit

tVDD

VDD rise time rate

∞

µs/V

VDD fall time rate

∞

tVDDA

VDDA rise time rate

∞

VDDA fall time rate

∞

Table 26. Embedded internal reference voltage

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VREFINT

Internal reference voltage

–40 °C < TA < +105 °C 1.16

1.2

1.25

–40 °C < TA < +85 °C 1.16

1.2

1.24(1)

1. Data based on characterization results, not tested in production.

TS_vrefint

ADC sampling time when

reading the internal

reference voltage

-2.2

µs

VRERINT

Internal reference voltage

spread over the

temperature range

VDD = 1.8 V ±10 mV

10(2)

2. Guaranteed by design, not tested in production.

TCoeff

Temperature coefficient

100(2) ppm/°C

TREFINT_RDY(3)

3. Guaranteed by design, not tested in production. Latency between the time when pin NPOR is set to 1 by

the application and the time when VREFINTRDYF is set to 1 by the hardware.

Internal reference voltage

temporization

-1.5

2.5

4.5

Table 27. Internal reference voltage calibration values

Calibration value name

Description

Memory address

VREFINT_CAL

Raw data acquired at

temperature of 30 °C

VDDA= 3.3 V

0x1FFF F7BA - 0x1FFF F7BB

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