Pqi U172 User Manual download pdf (Page 6)

USB Flash Drive

Rev. A.0 3/4 Sep 2006

6. DC Characteristics

Symbol Parameter Min. Typical Max. Units

VDD Supply voltage for VCC3 or VCC3A

3.0 3.3 3.6

VDD18

Regulator output voltage for VCC or

VCCA

1.62 1.8 1.98 V

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

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 1

Pin 2 Pin 3

Pin 4

1 2 3 4 5 6 7

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Pqi U172 User Manual Page 6