STM32L4S5AI datasheet(222/275 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L4S5xx, STM32L4S7xx and STM32L4S9xx

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DocID030322 Rev 2

USB OTG full speed (FS) characteristics

The device’s USB interface is fully compliant with the USB specification version 2.0 and is

USB-IF certified (for Full-speed device operation).

Note:

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

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

(current to voltage conversion to determine the different sessions) can be observed on PA9

when the feature is enabled.

Table 94. USB electrical characteristics

Symbol

Parameter

Conditions

Min(1)

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

Typ

Max(1)

Unit

VDDUSB

USB OTG full speed

transceiver operating

voltage

-3.0(2)

2. The STM32L4S5xx USB OTG full speed transceiver 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

Over VCM

range

0.2

VCM(3)

Differential input common

mode range

Includes VDI

range

0.8

2.5

VSE(3)

Single ended receiver input

threshold

0.8

2.0

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 full speed drivers.

0.3

VOH

Static output level high

RL of 15 kΩ to

3.6 V(4)

2.8

3.6

RPD(3)

Pull down resistor on PA11,

PA12 (USB_FS_DP/DM)

VIN = VDD

14.25

24.8

kΩ

RPU(3)

Pull Up Resistor on PA12

(USB_FS_DP)

VIN = VSS

during idle

0.9

1.25

1.575

Pull Up Resistor on PA12

(USB_FS_DP)

VIN = VSS

during reception

1.425

2.25

3.09

Pull Up Resistor on PA10

(OTG_FS_ID)

14.5

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