STM32F334X4 datasheet(51/115 Pages) STMICROELECTRONICS

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STM32F334x4 STM32F334x6 STM32F334x8

Electrical characteristics

100

6.3.4

Embedded reference voltage

The parameters given in Table 23 are derived from tests performed under ambient

temperature and VDD supply voltage conditions summarized in Table 19.

Table 22. Programmable voltage detector characteristics

Symbol

Parameter

Conditions

Min.(1)

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

Typ.

Max.(1)

Unit

VPVD0

PVD threshold 0

Rising edge

2.1

2.18

2.26

Falling edge

2.08

2.16

VPVD1

PVD threshold 1

Rising edge

2.19

2.28

2.37

Falling edge

2.09

2.18

2.27

VPVD2

PVD threshold 2

Rising edge

2.28

2.38

2.48

Falling edge

2.18

2.28

2.38

VPVD3

PVD threshold 3

Rising edge

2.38

2.48

2.58

Falling edge

2.28

2.38

2.48

VPVD4

PVD threshold 4

Rising edge

2.47

2.58

2.69

Falling edge

2.37

2.48

2.59

VPVD5

PVD threshold 5

Rising edge

2.57

2.68

2.79

Falling edge

2.47

2.58

2.69

VPVD6

PVD threshold 6

Rising edge

2.66

2.78

2.9

Falling edge

2.56

2.68

2.8

VPVD7

PVD threshold 7

Rising edge

2.76

2.88

Falling edge

2.66

2.78

2.9

VPVDhyst(2)

2. Guaranteed by design, not tested in production.

PVD hysteresis

100

IDD(PVD)

PVD current

consumption

0.15

0.26

µA

Table 23. Embedded internal reference voltage

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VREFINT

Internal reference voltage –40 °C < TA < +105 °C 1.20

1.23

1.25

TS_vrefint

ADC sampling time when

reading the internal

reference voltage

-2.2

µs

VRERINT

Internal reference voltage

spread over the

temperature range

VDD = 31.8 V ±10 mV

10(1)

1. Guaranteed by design, not tested in production.

TCoeff

Temperature coefficient

100(1) ppm/°C

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