Figure 5.4 3-port 48-pin qfn, Indicates pins on the bottom of the device – SMSC USB2513 User Manual
Page 15
USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
15
Revision 1.0 (3-11-09)
DATASHEET
Figure 5.4 3-Port 48-Pin QFN
Ground Pad
(must be connected to VSS)
SMSC
USB2513
(Top View QFN-48)
PRTPWR_POL
38
SUSP_IND / LOCAL_PWR / NON_REM[0]
39
LED_A_N[1] / PRTSWP[1]
37
SEL48
40
VDD33
41
USBDP_UP
43
XTALOUT
44
XTALIN / CLKIN
45
RBIAS
48
VDD33
47
PLLFILT
46
USBDM_UP
42
VDD33
1
USBDM_
DN
[1
] / P
R
T_DIS
_
M
[1]
2
U
S
BD
P
_DN
[1
] / PRT_D
IS_P
[1]
3
USBDM_
DN
[2
] / P
R
T_DIS
_
M
[2]
4
U
S
BD
P
_DN
[2
] / PRT_D
IS_P
[2]
5
USBDM_
DN
[3
] / P
R
T_DIS
_
M
[3]
6
U
S
BD
P
_DN
[3
] / PRT_D
IS_P
[3]
7
NC
8
NC
9
NC
10
NC
11
VDD33
12
21
PRTPWR[3]
20
OCS_N[2]
19
PRTPWR[2]
18
VDD33
17
PRTPWR[1]
16
CRFILT
15
OCS_N[1]
14
TEST
13
NC
23
LED_A_N[3] / PRTSWP[3]
22
LED_B_N[3] / GANG_EN
24
LED_B_N[2] / BOOST[1]
35
LE
D
_B
_N[
1]
/
BOOS
T
[0
]
34
VB
US
_D
E
T
33
R
ESE
T_
N
32
H
S
_IND / C
F
G_
S
E
L[1]
31
SC
L / S
M
BCLK /
C
F
G
_SEL
[0]
30
VD
D33
29
SD
A
/ SMB
D
A
T
A
/
N
O
N
_R
E
M[1]
28
NC
36
C
F
G
_SEL[
2
]
27
NC
26
OCS
_N[3]
25
LE
D
_A
_N[
2]
/
PR
T
S
WP
[2
]
Indicates pins on the bottom of the device.