MM32F103CET datasheet(72/89 Pages) MINDMOTION

72 / 89 page

DS_MM32F103xx_o_Ver1.13

Electrical characteristics

Symbol

Parameter

Conditions

Min(1)

Max(1)

Unit

VCM

(

Differential common

mode range

Includes VDI range

0.8

2.5

VSE

(

Single ended receiver

threshold

1.3

Output levels

VOL

Static output level low

RL of 1.5kΩ to 3.6V

(

0.3

VOH

Static output level high

RL of 15kΩ to VSS

(

2.8

3.6

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

2. To be compliant with the USB 2.0 full-speed electrical specification, USBDP (D +) pin

has a built-in 1.5kΩ resistor connected to the VDD, no need to external connect.

3. The USB functionality is ensured down to 2.7V but not the full USB electrical charac-

teristics which are degraded in the 2.7V

∼ 3.6V VDD voltage range.

4. Guaranteed by design. Not tested in production.

5. RL is the load connected on the USB drivers

532206

intersection

Differential

data line

CRS

Figure 24. USB timing diagram: definition of data signal rise and fall time

Table 39. USB Full-speed electrical characteristics(1)

Symbol

Parameter

Conditions

Min

Max

Unit

Rise time(2)

CL <= 50pF

7.041

23.13

Fall time(2)

CL <= 50pF

6.866

26.76

trfm

Rise/fall time matching

tr/tf

96.52

125.1

VCRS

Output signal crossover

voltage

1.391

2.967

1. Guaranteed by design. Not tested in production.

2. Measured from 10% to 90% of the data signal. For more detailed information, please

refer to USB Specification - Section 7 (version 2.0).

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