STM32G474CB datasheet(90/236 Pages) STMICROELECTRONICS

90 / 236 page

Electrical characteristics

STM32G474xB STM32G474xC STM32G474xE

90/236

DS12288 Rev 4

Figure 18. VREFINT versus temperature

5.3.5

Supply current characteristics

The current consumption is a function of several parameters and factors such as the

operating voltage, ambient temperature, I/O pin loading, device software configuration,

operating frequencies, I/O pin switching rate, program location in memory and executed

binary code

The current consumption is measured as described in Figure 17: Current consumption

measurement.

Typical and maximum current consumption

The MCU is placed under the following conditions:

•

All I/O pins are in analog input mode

•

All peripherals are disabled except when explicitly mentioned

•

The Flash memory access time is adjusted with the minimum wait states number,

depending on the fHCLK frequency (refer to the table “number of wait states according

to CPU clock (HCLK) frequency” available in the reference manual RM0440

"STM32G4 Series advanced Arm®-based 32-bit MCUs").

•

When the peripherals are enabled fPCLK = fHCLK

•

The voltage scaling Range 1 is adjusted to fHCLK frequency as follows:

–

Voltage Range 1 Boost mode for 150 MHz < fHCLK ≤ 170 MHz

–

Voltage Range 1 Normal mode for 26 MHz < fHCLK ≤ 150 MHz

The parameters given in Table 21 to Table 25 are derived from tests performed under

ambient temperature and supply voltage conditions summarized in Table 17: General

operating conditions.

MSv40169V2

1.185

1.19

1.195

1.2

1.205

1.21

1.215

1.22

1.225

1.23

1.235

-40

-20

100

120

°C

Mean

Min

Max

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