T
T
T
S
S
S
-
-
-
R
R
R
D
D
D
S
S
S
5
5
5
W
W
W
USB2.0 Portable Card Reader
Transcend Information, Inc.
2
Pinouts
Pin No.
Pin Name
01 V
USB
02 USB-
03 USB+
04 VSS
Pin Identification
Symbol
Function
USB-
USB+
USB differential signal:
The pairs are used to transmit
Data/Address/Command
VSS Ground
V
USB
USB Power Input
Block Diagram
Controller
USB
Port
SD/MMC slot:
12MHz
XTAL
3.3V
Voltage
V
USB
1.8V Voltage
Regulator
V
DD/18
V
OUT
V
IN
V
DDH
