S3C2440X Ver la hoja de datos (PDF) - Samsung

Número de pieza

componentes Descripción

Fabricante

S3C2440X

32-bit RISC microprocessor.

Samsung 

2003.10.15

ELECTRICAL DATA

S3C2440X RISC MICROPROCESSOR

Table 25-18. USB Full Speed Output Buffer Electrical Characteristics

(VDD = 1.8 V ± 0.15 V, TA = 0 to 70 °C, VEXT = 3.3V ± 0.3V)

Parameter

Symbol

Condition

Driver Characteristics

Transition Time

Rise Time

TR

CL = 50pF

Fall Time

TF

CL = 50pF

Rise/Fall Time Matching

Trfm

(TR / TF )

Output Signal Crossover

Voltage

Vcrs

Drive Output Resistance

Zdrv

Steady state drive

Min

Max

4.0

20

4.0

20

90

111.1

1.3

2.0

28

44

Unit

ns

%

V

ohm

Table 25-19. USB Low Speed Output Buffer Electrical Characteristics

(VDD = 1.8 V ± 0.15 V, TA = 0 to 70 °C, VEXT = 3.3V ± 0.3V)

Parameter

Symbol

Condition

Driver Characteristics

Rising Time

TR

CL = 50pF

CL = 350pF

CL = 50pF

Falling Time

TF

CL = 350pF

Rise/Fall Time Matching

Trfm

(Tr / Tf )

Output Signal Crossover

Voltage

Vcrs

Min

Max

Unit

75

ns

300

75

300

80

125

%

1.3

2.0

V

Note: All measurement conditions are in accordance with the Universal Serial Bus Specification 1.1 Final Draft

Revision.

25-38

Preliminary product information describes products that are in development,

for which full characterization data and associated errata are not yet available

Specifications and information herein are subject to change without notice.

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