PQI Intelligent Stick 2.0 Plus - Manual (Page 6)

Intelligent Stick™
Rev. A.0 3/4 Sep 2006
1 2 3 4
6. DC Characteristics
Symbol Parameter Min. Max. Unit Notes
VDD Power Supply 3 3.3 3.6
VIH Input Voltage 0.9 X VDD -- 5
VIL Input Voltage -0.3 -- 0.2 X VDD
VOH Output Voltage VDD – 0.4 -- --
VOL Output Voltage -- -- 0.4
ILK Input leakage current -1 -- 1
IRW Working Current -- --
IOH IO output current -- 4 --
IOL IO output current -- 4 --
VIH Input Voltage 0.9 X VDD -- 5
7. Recommended Operating Conditions
Symbol Parameter Min. Typical Max. Units
Vcc 33 Power Supply Voltage 3.0 3.3 3.3 V
Vin Input Voltage 0 Vcc Vcc+0.3 V
Vcc 25 Internal Power Support 2.25 2.5 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