STM32F401CD datasheet(65/135 Pages) STMICROELECTRONICS

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STM32F401xD STM32F401xE

Electrical characteristics

114

6.3.6

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 19: Current consumption

measurement scheme.

All the run-mode current consumption measurements given in this section are performed

with a reduced code that gives a consumption equivalent to CoreMark code.

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

•

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.

IRUSH(2)

InRush current on

voltage regulator power-

on (POR or wakeup from

Standby)

160

200

ERUSH(2)

InRush energy on

voltage regulator power-

on (POR or wakeup from

Standby)

VDD = 1.7 V, TA = 105 °C,

IRUSH = 171 mA for 31 µs

5.4

µC

1. The product behavior is guaranteed by design down to the minimum VPOR/PDR value.

2. Guaranteed by design, not tested in production.

3. The reset timing is measured from the power-on (POR reset or wakeup from VBAT) to the instant when first

instruction is fetched by the user application code.

Table 19. Embedded reset and power control block characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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