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Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
Revision 2.0 (10-03-08) 12 SMSC USB2640/USB2641
DATASHEET
Figure 3.2 USB2641 48-Pin QFN
Thermal Slug
(must be connected to VSS)
SMSC
USB2641
(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
VDDA33
1
USBDN_DM2
2
USBDN_DP2
3
USBDN_DM3
4
USBDN_DP3
5
PRTCTL2
6
PRTCTL3
7
SPI_CE_N
8
SPI_CLK / GPIO4 / SCL
9
VDD33
10
SPI_DI
11
SPI_DO / GPIO5 / SDA / SPI_SPD_SEL
12
21
SD_CLK / MS_BS
20
SD_D6 / MS_D7
19
SD_D7 / MS_D6
18
SD_D0 / MS_D4
17
VDD18
16
SD_D1 / MS_D5
15
VDD33
14
GPIO15 / SD_nCD
13
GPIO6 / SD_WP / MS_SCLK
23
SD_D5 / MS_D1
22
NC
24
SD_CMD / MS_D0
35
GPIO2 / RXD
34
GPIO10 (CRD_PWR)
33
VDD33
32
SD_D3 / MS_D3
31
GPIO12 / MS_INS
30
SD_D4 / MS_D2
29
GPIO14
28
NC
36
SD_D2
27
NC
26
NC
25
VDD33