Figure 5.5 4-port 48-pin qfn, Indicates pins on the bottom of the device – SMSC USB2513 User Manual
Page 16
USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.0 (3-11-09)
16
SMSC USB251x
DATASHEET
Figure 5.5 4-Port 48-Pin QFN
Ground Pad
(must be connected to VSS)
SMSC
USB2514
(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
V
DD3
3
1
USB
D
M_
DN[
1] /
PRT_DI
S_M
[1]
2
U
S
BDP
_D
N
[1
] /
PR
T_
DI
S
_
P[
1
]
3
USB
D
M_
DN[
2] /
PRT_DI
S_M
[2]
4
U
S
BDP
_D
N
[2
] /
PR
T_
DI
S
_
P[
2
]
5
USB
D
M_
DN[
3] /
PRT_DI
S_M
[3]
6
U
S
BDP
_D
N
[3
] /
PR
T_
DI
S
_
P[
3
]
7
USB
D
M_
DN[
4] /
PRT_DI
S_M
[4]
8
U
S
BDP
_D
N
[4
] /
PR
T_
DI
S
_
P[
4
]
9
LED
_
B
_
N[4]
10
NC
11
V
DD3
3
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
LED_A_N[4] / PRTSWP[4]
23
LED_A_N[3] / PRTSWP[3]
22
LED_B_N[3] / GANG_EN
24
LED_B_N[2] / BOOST[1]
35
LED
_
B
_
N[
1]
/
B
O
O
S
T
[0
]
34
VBU
S_
D
E
T
33
RES
E
T
_N
32
H
S
_IND /
C
F
G_S
E
L[
1]
31
SCL
/
SM
BC
L
K
/
CF
G_
SEL
[0
]
30
VDD
3
3
29
SDA
/
SM
BD
A
T
A
/
NON
_
R
E
M
[1
]
28
OC
S
_N
[4
]
36
C
F
G_SE
L[2]
27
PRT
P
WR
[4
]
26
OC
S
_N
[3
]
25
LED
_
A
_
N[
2]
/
P
R
T
S
WP[
2
]
Indicates pins on the bottom of the device.