STM32F401CB datasheet(103/134 Pages) STMICROELECTRONICS

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STM32F401xB STM32F401xC

Electrical characteristics

113

USB OTG full speed (FS) characteristics

This interface is present in USB OTG FS controller.

Note:

When VBUS sensing feature is enabled, PA9 should be left at their default state (floating

input), not as alternate function. A typical 200 µA current consumption of the embedded

sensing block (current to voltage conversion to determine the different sessions) can be

observed on PA9 when the feature is enabled.

Table 63. USB OTG FS startup time

Symbol

Parameter

Max

Unit

tSTARTUP(1)

1. Guaranteed by design.

USB OTG FS transceiver startup time

µs

Table 64. USB OTG FS DC electrical characteristics

Symbol

Parameter

Conditions

Min.(1)

1. All the voltages are measured from the local ground potential.

Typ. Max.(1) Unit

Input

levels

VDD

USB OTG FS operating

voltage

3.0(2)

2. The USB OTG FS functionality is ensured down to 2.7 V but not the full USB full speed electrical

characteristics which are degraded in the 2.7-to-3.0 V VDD voltage range.

-3.6

VDI(3)

3. Guaranteed by design.

Differential input sensitivity

I(USB_FS_DP/DM)

0.2

VCM(3)

Differential common mode

range

Includes VDI range

0.8

2.5

VSE(3)

Single ended receiver

threshold

1.3

2.0

Output

levels

VOL Static output level low

RL of 1.5 kΩ to 3.6 V(4)

4. RL is the load connected on the USB OTG FS drivers.

0.3

VOH Static output level high

RL of 15 kΩ to VSS(4)

2.8

3.6

RPD

PA11, PA12

(USB_FS_DM/DP)

VIN = VDD

PA9 (OTG_FS_VBUS)

0.65

1.1

2.0

RPU

PA11, PA12

(USB_FS_DM/DP)

VIN = VSS

1.5

1.8

2.1

PA9 (OTG_FS_VBUS)

VIN = VSS

0.25

0.37

0.55

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