T
T
T
S
S
S
4
4
4
0
0
0
G
2
G
G
S
S
S
J
J
J
2
2
5
5
5
2.5
“
40GB StoreJet
™
Transcend Information Inc.
2
Block Diagram
Control signal
USB IDE
Interface
Controller
U
SB C
onnec
to
r
D0~D15
HDD
D0~D15
USB+
USB-
/ WE
/ RE
...
Pinouts
Pin No.
Pin Name
01 VCC
02 USB-
03 USB+
04 VSS
Pin Identification
Symbol
Function
USB-
USB+
USB differential signal
The pairs are used to transmit
Data/Address/Command
VCC
USB power input (DC 5V)
VSS
Ground
Crystal
12MHz
