12 / 102 page
Specification
NET2272 USB Peripheral Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
Patent Pending
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 1.2, October 15, 2003
12
1.5
Example connections to NET2272
2.5VCC
C4
0.1uF
2.5VCCA
ALE
RESET#
IOR#
CS#
DACK
EOT
C
TP1
CLOCK_OUT
USBLGND
USBVCC
DREQ
IRQ#
R1
1K
3.3VCC
R4
39.2 +/- 1%
1
2
R3
39.2 +/- 1%
1
2
VBUSL
U?
N2272
LA0
32
LA1
31
LA2
30
LA3
29
LA4
28
CS#
61
IOR#
59
IOW#
60
ALE
53
DMAWR#
34
RESET#
58
DACK
51
EOT
52
TEST
18
TRST
40
XIN
25
XOUT
26
RREF
13
VBUS
64
LD0
19
LD1
20
LD2
21
LD3
22
LD4
23
LD5
35
LD6
36
LD7
37
LD8
38
LD9
39
LD10
43
LD11
44
LD12
45
LD13
46
LD14
47
LD15
49
DREQ
62
IRQ#
63
LCLKO
57
TMC2
17
DMARD#
50
RSDM
9
DM
8
DP
6
RSDP
5
RPU
2
IOW#
DMAWR#
R2
1.5K
1
2
+
C6
10uF
+
C16
10uF
C12
0.1uF
C13
0.01uF
C14
0.1uF
C15
0.01uF
3.3VCC
C7
0.1uF
C8
0.01uF
C9
0.1uF
C10
0.01uF
C5
0.01uF
J1
USB_B
1
1
2
2
3
3
4
4
GND
5
L2
42 ohm
L1
42 ohm
+
C11
10uF
C3
0.01uF
R6
1M
USBCGND
2.5VCC
L3
1uH
1
2
RREF
2.5VCCA
2.5VCCA
3.3VCC
2.5VCC
LA2
LA1
LA4
LA3
LA5
R7
47K
R5
2.43K +/- 1%
NOTE: For 16-bit bus, use address bits 5:1;
For 8-bit bus, use address bits 4:0.
L4
1uH
1
2
ANALOG
GROUND
DIGITAL
GROUND
C2
10pF
C1
10pF
Y1
30 MHz
1
2
LD0
LD4
LD5
LD1
LD3
LD2
LD7
LD6
LD8
LD13
LD14
LD9
LD15
LD12
LD11
LD10
LA[5:1]
DMARD#
LD[15:0]
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
