STM32F303VB datasheet(103/133 Pages) STMICROELECTRONICS

103 / 133 page

STM32F302xx/STM32F303xx

Electrical characteristics

Doc ID 023353 Rev 5

103/133

Figure 31.

USB timings: definition of data signal rise and fall time

Table 64.

USB DC electrical characteristics

Symbol

Parameter

Conditions

Min.(1)

All the voltages are measured from the local ground potential.

Max.(1)

Unit

Input levels

VDD

USB operating voltage(2)

To be compliant with the USB 2.0 full-speed electrical specification, the USB_DP (D+) pin should be pulled

up with a 1.5 k

Ω resistor to a 3.0-to-3.6 V voltage range.

3.0(3)

The STM32F3xxx USB functionality is ensured down to 2.7 V but not the full USB electrical characteristics

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

3.6

VDI

(4)

Guaranteed by design, not tested in production.

Differential input sensitivity

I(USB_DP, USB_DM)

0.2

VCM

(4)

Differential common mode range

Includes VDI range

0.8

2.5

VSE

(4)

Single ended receiver threshold

1.3

2.0

Output levels

VOL

Static output level low

RL of 1.5 kΩ to 3.6 V

(5)

RL is the load connected on the USB drivers

-0.3

VOH

Static output level high

RL of 15 kΩ to VSS

(5)

2.8

3.6

ai14137

Differen tial

Data L ines

VSS

VCRS

Crossover

points

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