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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
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
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
GPIO2 / RXD
34
GPIO10 (CRD_PWR)
33
VDD33
32
xD_D6 / SD_D3 / MS_D3
31
GPIO12 / MS_INS
30
xD_D7 / SD_D4 / MS_D2
29
GPIO14 / xD_nCD
28
xD_nB/R
36
xD_D5 / SD_D2
27
xD_nRE
26
xD_nCE
25
VDD33