SMSC USB2640i - Manual (Page 11)

Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
SMSC USB2640/USB2641 11 Revision 2.0 (10-03-08)
DATASHEET
Chapter 3 Pin Configurations
Figure 3.1 USB2640 48-Pin QFN
Thermal Slug
(must be connected to VSS)
SMSC
USB2640
(Top View QFN-48)
Indicates pins on the bottom of the device .
nRESET 38
VBUS_DET 39
GPIO1 / LED1 / TXD 37
TEST 40
VDDA33 41
USB- 43
XTAL2 44
XTAL1 (CLKIN) 45
RBIAS
48 VDDA33
47
VDD18PLL 46
USB+ 42
VD
D
A3
3
1
U
SBD
N
_
D
M
2
2
U
SBD
N
_
D
P2
3
U
SBD
N
_
D
M
3
4
U
SBD
N
_
D
P3
5
P
R
TC
TL
2
6
P
R
TC
TL
3
7
SPI
_C
E_
N
8
SPI
_
C
LK
/ G
PI
O
4
/
SC
L
9
VD
D
3
3
10
SPI
_D
I
11
SPI
_
D
O
/ G
PI
O
5 /
SD
A
/
SPI
_
SPD
_S
EL
12
21 xD_nWP / SD_CLK / MS_BS
20 xD_D0 / SD_D6 / MS_D7
19 xD_D1 / SD_D7 / MS_D6
18 xD_D2 / SD_D0 / MS_D4
17
VDD18
16
xD_D3 / SD_D1 / MS_D5
15
VDD33
14 GPIO15 / SD_nCD
13 xD_D4 / GPIO6 / SD_WP / MS_SCLK
23 xD_ALE / SD_D5 / MS_D1
22 xD_nWE
24 xD_CLE / SD_CMD / MS_D0
35
GP
IO
2
/
R
X
D
34
G
P
IO
1
0 (
C
R
D
_P
WR
)
33
VD
D
3
3
32
xD
_D
6
/ S
D
_
D
3 /
M
S
_D
3
31
G
P
IO
1
2 /
M
S
_
IN
S
30
xD
_D
7
/ S
D
_
D
4 /
M
S
_D
2
29
G
P
IO
1
4 /
x
D
_
nC
D
28
xD
_n
B/
R
36
xD
_D
5
/
SD
_
D
2
27
xD
_n
R
E
26
xD
_n
C
E
25
VD
D
3
3