Hi-Speed USB Device Transceiver with UTMI Interface
Revision 1.7 (05-11-07)
8
SMSC USB3250
PRODUCT PREVIEW
Application Diagram
Figure 3 Application Diagram for 56-pin QFN Package
UTMI
USB
POWER
TXVALID
TXREADY
RXACTIVE
RXVALID
RXERROR
VALIDH
DATABUS16_8
XCVRSELECT
TERMSELECT
SUSPENDN
RESET
OPMODE 0
OPMODE 1
LINESTATE 0
LINESTATE 1
CLKOUT
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
DATA 9
DATA 10
DATA 11
DATA 12
DATA 13
DATA 14
DATA 15
XI
XO
DP
DM
VDDA1.8
VDD1.8
VDD1.8
VDD1.8
VDD1.8
VDDA3.3
VDDA3.3
VDD3.3
VDD3.3
VDD3.3
VSS
VSS
VSS
VSS
VSS
VSSA
VSSA
VSSA
VSSA
USB-B
GND
VDD3.3
1ΜΩ
12MHz
Crystal
C
LOAD
C
LOAD
44
42
41
40
39
37
36
35
34
32
31
30
29
27
26
25
10
11
12
16
23
38
53
4
7
15
28
43
45
51
50
46
52
47
54
17
18
13
24
20
19
22
21
49
3
2
14
33
48
55
56
1
5
8
9
RBIAS
6
12K
Ω
VDD1.8
Voltage
Regulator
VDD3.3
10uF
1uF
1uF
10uF
VDD1.8
Ferrite Bead
Ferrite Bead
10uF
