STM32L471RG datasheet(95/218 Pages) STMICROELECTRONICS

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STM32L471xx

Electrical characteristics

199

6.3

Operating conditions

6.3.1

General operating conditions

Table 22. General operating conditions

Symbol

Parameter

Conditions

Min

Max

Unit

fHCLK Internal AHB clock frequency

MHz

fPCLK1 Internal APB1 clock frequency

fPCLK2 Internal APB2 clock frequency

VDD

Standard operating voltage

1.71

(1)

3.6

VDDIO2 PG[15:2] I/Os supply voltage

At least one I/O in PG[15:2] used

1.08

3.6

PG[15:2] not used

3.6

VDDA Analog supply voltage

ADC or COMP used

1.62

3.6

DAC or OPAMP used

1.8

VREFBUF used

2.4

ADC, DAC, OPAMP, COMP,

VREFBUF not used

VBAT

Backup operating voltage

1.55

3.6

VIN

I/O input voltage

TT_xx I/O

-0.3

VDDIOx+0.3

BOOT0

All I/O except BOOT0 and TT_xx

-0.3

MIN(MIN(VDD, VDDA,

VDDIO2)+3.6 V,

5.5 V)(2)(3)

Power dissipation at

TA = 85 °C for suffix 6

TA = 105 °C for suffix 7(4)

LQFP144

625

LQFP100

476

LQFP64

444

UFBGA132

363

Ambient temperature for the

suffix 6 version

Maximum power dissipation

–40

°C

Low-power dissipation(5)

–40

105

Ambient temperature for the

suffix 7 version

Maximum power dissipation

–40

105

Low-power dissipation(5)

–40

125

Ambient temperature for the

suffix 3 version

Maximum power dissipation

–40

125

Low-power dissipation(5)

–40

130

Junction temperature range

Suffix 6 version

–40

105

°C

Suffix 7 version

–40

125

Suffix 3 version

–40

130

1. When RESET is released functionality is guaranteed down to VBOR0 Min.

2. This formula has to be applied only on the power supplies related to the IO structure described by the pin definition table.

Maximum I/O input voltage is the smallest value between MIN(VDD, VDDA, VDDIO2)+3.6 V and 5.5V.

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