T
T
T
S
S
S
-
-
-
R
R
R
D
D
D
S
S
S
1
1
1
USB 2.0 Compact Card Reader
Transcend information Inc
2
Block Diagram
ALCOR
AU6333
USB
Interface
Power
+3.3V
Memory Card
+5V
Pinouts
Pin No.
Pin Name
01 VCC
02 USB-
03 USB+
04 VSS
Pin Identification
Symbol
Function
USB-
USB differential signal:
USB+
The pairs are used to transmit
Data/Address/Command
VSS Ground
VCC
USB Power Input
