STM32F103ZG datasheet(100/120 Pages) STMICROELECTRONICS

100 / 120 page

Electrical characteristics

STM32F103xF, STM32F103xG

100/120

Doc ID 16554 Rev 3

Figure 54.

USB timings: definition of data signal rise and fall time

5.3.18

CAN (controller area network) interface

Refer to Section 5.3.14: I/O port characteristics for more details on the input/output alternate

function characteristics (CAN_TX and CAN_RX).

Table 60.

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 USBDP (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 STM32F103xx 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 characterization, not tested in production.

Differential input sensitivity

I(USBDP, USBDM)

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

Table 61.

USB: full-speed electrical characteristics

Driver characteristics(1)

Guaranteed by design, not tested in production.

Symbol

Parameter

Conditions

Min

Max

Unit

Rise time(2)

Measured from 10% to 90% of the data signal. For more detailed informations, please refer to USB

Specification - Chapter 7 (version 2.0).

CL = 50 pF

420

Fall Time(2)

CL = 50 pF

trfm

Rise/ fall time matching

tr/tf

110

VCRS

Output signal crossover voltage

1.3

2.0

ai14137

Differen tial

data lines

VSS

VCRS

Crossover

points

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