Integrated USB 2.0 Compatible 3-Port Hub
Datasheet
Chapter 3 Pin Configuration 3-Port Hub
SCL/SMBCLK/CFG_SEL0
26
SELF_PWR
VBUS_DET
PRTPWR1
CLKIN_EN
OCS1_N
OCS2_N
TEST1
VDD18
VSS
27
RESET_N
VSS
VDD33CR
VDD18
VSS
XTAL2
XTAL1/CLKIN
VDDA18PLL
VDDA33PLL
ATEST/REG_EN
RBIAS
VSS
37
38
39
40
41
42
43
44
45
46
47
48
10
12
11
1
2
4
6
7
3
5
8
9
25
30
29
35
28
34
33
32
31
36
SDA/SMBDATA
CFG_SEL1
24
23
22
TEST0
VDD18
VSS
GR1/NON_REM0
GANG_EN
GR2/NON_REM1
PRTPWR_POL
GR3/PRT_DIS0
PRTPWR2
OCS3_N
PRTPWER3
VDDA33
SMSC
USB2503
&
USB2503A
(Top View QFN-48)
Thermal Slug
(must be connected to VSS)
21
20
19
18
17
16
15
14
13
VSS
VDDA33
USBDP0
USBDP1
VDDA33
USBDN0
USBDN1
USBDP2
USBDN2
VSS
USBDN3
Indicates pins on the bottom of the device.
Figure 3.1 3-Port 48-Pin QFN
Revision 2.1 (12-06-06)
DATASHEET
8
USBDP3
SMSC USB2503/USB2503A
SMSC [ SMSC CORPORATION ]
