PQI U172 manual USB Flash Drive, Rev. A.0, VDD18

Page 6
VDD18

USB Flash Drive

6. DC Characteristics

Symbol

Parameter

Min.

Typical

Max.

Units

VDD

Supply voltage for VCC3 or VCC3A

3.0

3.3

3.6

V

 

 

 

 

 

 

VDD18

Regulator output voltage for VCC or

1.62

1.8

1.98

V

VCCA

 

 

 

 

 

 

 

 

 

 

 

VIL

Input Low Voltage

-0.5

 

0.8

V

 

 

 

 

 

 

VIH

Input High Voltage

2.0

 

 

V

 

 

 

 

 

 

VOL

Output Low Voltage (IOL=4mA)

 

 

0.4

V

 

 

 

 

 

 

VOH

Output High Voltage (IOH=4mA)

2.4

 

 

V

 

 

 

 

 

 

CIN

Input pin capacitance

 

 

10

pF

 

 

 

 

 

 

IDD

Supply current

 

50

 

mA

 

 

 

 

 

 

ISUS

Suspend current (D+1.5KΩ)

 

 

300

uA

 

 

 

 

 

 

7. Recommended Operating Conditions

Symbol

Parameter

Min.

Typical

Max.

Units

 

 

 

 

 

 

VCC33

Power Supply Voltage

3.0

3.3

3.3

V

 

 

 

 

 

 

VIN

Input Voltage

0

Vcc

Vcc + 0.3

V

 

 

 

 

 

 

VCC25

Internal Power Support

2.25

2.50

2.75

V

 

 

 

 

 

 

8. Pin Assignments

Pin No.

Pin Name

Function

 

 

 

1

VCC

USB power input

 

 

 

2

USB D-

USB differential signal

 

 

 

3

USB D+

The pairs are used to transmit Data/Address/Command

 

 

 

4

VSS

Ground

 

 

 

Pin 2

 

 

 

 

 

Pin 3

 

 

 

 

 

 

 

 

 

 

 

 

Pin 1

 

 

 

 

 

Pin 4

 

 

 

 

 

 

 

 

 

Rev. A.0

3/4

Sep 2006

Image 6
Contents USB Flash Drive Rev. A.0Mr. Flash U172 BB55 Series Table of Contents 1. Introduction to Mr. Flash ……… History RevisionDate 09/11 ‘06Configuration 2. Main Features Overview3. Product Specification 1. Introduction to U1724. Block Diagram 5. Absolute Maximum RatingsVDD18 9.1 Dimensions 9.1.1 Height 58.8.mm 9.1.2 Width 17.6mm 9.1.3 Depth 9.3mm 9.1.4 Weight 9g ± 1g 9.2 Outline of top view