Datasheet

High-Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
SMSC USB4640/USB4640i 11 Revision 1.3 (03-13-13)
DATASHEET
Chapter 3 Pinning Information
This chapter outlines the pinning configuration, followed by a corresponding pin list grouped by
function. The detailed pin descriptions are listed then outlined in Section 3.3, on page 13.
3.1 Pin Configurations
Figure 3.1 USB4640/USB4640i 48-Pin QFN
Ground Pad
(must be connected to VSS)
SMSC
USB4640/40i
(Top View QFN-48)
nRESET
38
39
GPIO1/LED/TXD
37
TEST
40
VDD12
41
HSIC_STROBE
43
XTAL2
44
XTAL1 (CLKIN)
45
RBIAS
48
VDD33
47
PLLFILT
46
HSIC_DAT
42
VDD33
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/xD_nWP
20
SD_D6/MS_D7/xD_D0
19
SD_D7/MS_D6/xD_D1
18
SD_D0/MS_D4/xD_D2
17
CRFILT
16
SD_D1/MS_D5/xD_D3
15
VDD33
14
GPIO15/SD_nCD
13
GPIO6/SD_WP/MS_SCLK/xD_D4
23
SD_D5/MS_D1/xD_ALE
22
xD_nWE
24
35
GPIO2/RXD
34
GPIO10 (CRD_PWR)
33
VDD33
32
SD_D3/MS_D3/xD_D6
31
GPIO12/MS_INS
30
SD_D4/MS_D2/xD_D7
29
GPIO14/xD_nCD
28
xD_nB/R
36
SD_D2/xD_D5
27
xD_nRE
26
xD_nCE
25
VDD33
SD_CMD/MS_D0/xD_CLE
HSIC_IMP
Indicates pins on the bottom of the device.