STM32F401CB datasheet(64/134 Pages) STMICROELECTRONICS

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Electrical characteristics

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DocID024738 Rev 5

Typical and maximum current consumption

The MCU is placed under the following conditions:

•

All I/O pins are in input mode with a static value at VDD or VSS (no load).

•

All peripherals are disabled except if it is explicitly mentioned.

•

The Flash memory access time is adjusted to both fHCLK frequency and VDD ranges

(refer to Table 15: Features depending on the operating power supply range).

•

The voltage scaling is adjusted to fHCLK frequency as follows:

–

Scale 3 for fHCLK ≤ 60 MHz

–

Scale 2 for 60 MHz < fHCLK ≤ 84 MHz

•

The system clock is HCLK, fPCLK1 = fHCLK/2, and fPCLK2 = fHCLK.

•

External clock is 4 MHz and PLL is on when fHCLK is higher than 25 MHz.

•

The maximum values are obtained for VDD = 3.6 V and a maximum ambient

temperature (TA), and the typical values for TA= 25 °C and VDD = 3.3 V unless

otherwise specified.

Table 20. Typical and maximum current consumption, code with data processing (ART

accelerator disabled) running from SRAM - VDD =1.8V

Symbol

Parameter

Conditions

fHCLK

(MHz)

Typ

Max(1)

Unit

TA= 25 °C TA=85 °C TA=105 °C

IDD

Supply current

in Run mode

External clock,

all peripherals

enabled(2)(3)

20.0

23(4)

14.5

10.4

5.5

External clock,

all peripherals

disabled(3)

10.9

14(4)

8.0

5.8

3.2

1. Guaranteed by characterization, unless otherwise specified.

2. When analog peripheral blocks such as ADC, HSE, LSE, HSI, or LSI are ON, an additional power consumption has to be

considered.

3. When the ADC is ON (ADON bit set in the ADC_CR2 register), add an additional power consumption of 1.6 mA for the

analog part.

4. Guaranteed by test in production.

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