PQI U220 - Manual (Page 6)

USB Flash Drive
Rev. A.0 3/4 Sep 2006
6. DC Characteristics
Symbol Parameter Min. Typical Max. Units
V
DD
Supply voltage for VCC3 or VCC3A 3.0 3.3 3.6 V
V
DD18
Regulator output voltage for VCC or
VCCA
1.62 1.8 1.98 V
V
IL
Input Low Voltage -0.5 0.8 V
V
IH
Input High Voltage 2.0 V
V
OL
Output Low Voltage (IOL=4mA) 0.4 V
V
OH
Output High Voltage (IOH=4mA) 2.4 V
C
IN
Input pin capacitance 10 pF
I
DD
Supply current 50 mA
I
SUS
Suspend current (D+1.5KΩ) 300 uA
7. Recommended Operating Conditions
Symbol Parameter Min. Typical Max. Units
V
CC33
Power Supply Voltage 3.0 3.3 3.3 V
V
IN
Input Voltage 0 Vcc Vcc + 0.3 V
V
CC25
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