STM32F103ZEH7TR datasheet(97/123 Pages) STMICROELECTRONICS

Part #	STM32F103ZEH7TR

Description	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces

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97 / 123 page

STM32F103xC, STM32F103xD, STM32F103xE

Electrical characteristics

Doc ID 14611 Rev 7

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Figure 52.

USB timings: definition of data signal rise and fall time

5.3.17

CAN (controller area network) interface

Refer to Section 5.3.13: I/O port characteristics for more details on the input/output alternate

function characteristics (CAN_TX and CAN_RX).

Table 56.

USB DC electrical characteristics

Symbol

Parameter

Conditions

Min.(1)

1.

All the voltages are measured from the local ground potential.

Max.(1)

Unit

Input levels

VDD

USB operating voltage(2)

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

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

3.0(3)

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

V

VDI

(4)

4.

Guaranteed by characterization, not tested in production.

Differential input sensitivity

I(USBDP, USBDM)

0.2

V

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 k to 3.6 V

(5)

5.

RL is the load connected on the USB drivers

0.3

V

VOH

Static output level high

RL of 15 k to VSS

(5)

2.8

3.6

Table 57.

USB: full-speed electrical characteristics

Driver characteristics(1)

1.

Guaranteed by design, not tested in production.

Symbol

Parameter

Conditions

Min

Max

Unit

tr

Rise time(2)

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

ns

tf

Fall Time(2)

CL = 50 pF

4

20

ns

trfm

Rise/ fall time matching

tr/tf

90

110

%

VCRS

Output signal crossover voltage

1.3

2.0

V

ai14137

tf

Differen tial

Data L ines

VSS

VCRS

tr

Crossover

points

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