ST72622L2M1L View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72622L2M1L

LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI

STMicroelectronics 

ST7262

12.11 COMMUNICATION INTERFACE CHARACTERISTICS

12.11.1 USB - Universal Bus Interface

(Operating conditions TA = 0 to +70°C, VDD = 4.0 to 5.25V unless otherwise specified)

USB DC Electrical Characteristics

Parameter

Symbol

Differential Input Sensitivity

VDI

Differential Common Mode Range VCM

Single Ended Receiver Threshold

VSE

Conditions

I(D+, D-)

Includes VDI range

Min.

0.2 3)

0.8 3)

0.8 3)

Max.

2.5 3)

2.0 3)

Unit

V

V

V

Static Output Low

VOL

RL of 1.5K ohms to 3.6v

0.3

V

Static Output High

USBVCC: voltage level 4)

VOH

USBV

RL of 15K ohms to VSS

VDD=5V

2.8

3.00

3.6

V

3.60

V

Note 1: RL is the load connected on the USB drivers.

Note 2: All the voltages are measured from the local ground potential.

Note 3: Not tested in production, guaranteed by design.

Note 4: To improve EMC performance (noise immunity), it is recommended to connect a 100nF capacitor

to the USBVCC pin.

Figure 82. USB: Data Signal Rise and Fall Time

Differential

Data Lines

VCRS

Crossover

points

VSS

tf

tr

Table 27. USB: Low-speed Electrical Characteristics

Parameter

Driver characteristics:

Rise time

Fall Time

Rise/ Fall Time matching

Output signal Crossover

Voltage

Symbol

tr

tf

trfm

VCRS

Conditions

Min

Max

Unit

Note 1,CL=50 pF

75

ns

Note 1, CL=600 pF

300

ns

Note 1, CL=50 pF

75

ns

Note 1, CL=600 pF

300

ns

tr/tf

80

120

%

1.3

2.0

V

Note 1: Measured from 10% to 90% of the data signal. For more detailed informations, please refer to Chapter 7 (Elec-

trical) of the USB specification (version 1.1).

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