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1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number RevisionSize
A3
Date: 2004-03-24 Sheet of
File: C:\My N oteBook Raw\..\ISP1521_Update.SchDrawn By:
ISP1521 EVAL BOARD
VBU S
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB1
L11
0. 1uF
C25
150uF
C31
15KR29
15KR30
SDA
5
SCL
6
WP
7
VCC
8
A0
1
A1
2
A2
3
GND
4
PCF8582
U2
RESET
40
PSW7
37
HP
21
PSW6
26
PSW5
28
PSW4
33
PSW3
35
PSW2
39
PSW1
24
OC7
36
OC6
25
OC5
27
OC4
32
OC3
34
OC2
38
OC1
23
SP/BP
22
SUSPEND
1
ADOC
41
NOOC
60
PIGRN1
72
PIGRN2
67
PIGRN3
63
PIGRN4
61
PIGRN5
76
PIGRN6
74
PIGRN7
65
PIABR1
73
PIABR2
68
PIABR3
64
PIABR4
62
PIABR5
77
PIABR6
75
PIABR7
66
HUBGL
78
SCL
79
SDA
80
DP7
49
DM7
48
DP6
16
DM6
15
DP5
10
DM5
9
DP4
59
DM4
58
DP3
55
DM3
54
DP2
46
DM2
45
DP1
20
DM1
19
DP0
4
DM0
3
XTAL1
42
XTAL2
43
RPU
5
RREF
7
DGND
29
DGND
71
AGND
2
AGND
6
AGND
8
AGND
12
AGND
14
AGND
18
AGND
44
AGND
47
AGND
51
AGND
53
AGND
57
VCC5
31
VCC5
69
VCC4
70
VCC4
30
VCC3
11
VCC3
13
VCC3
17
VCC3
50
VCC3
52
VCC3
56
ISP1521_LQFP80
U1
1N4148
D18
10K
R43
0.1uF
C16
V3.3REG
TP
1K5, 1%
R52
12K, 1%R53
1
2
3
4
SIP_4P
CN1
12MHz
X1
22pF
C17
22pF
C18
0.1uFC14
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD1
VBUS1
0. 01uFC3
1nFC4
VBUS
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_U P
USB0
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD0
VBU S
0.01uFC2
1nFC1
VBU S
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB3
L31
0. 1uF
C30
150uF
C70
15KR31
15KR32
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD3
VBUS3
0. 01uFC68
1nFC69
VBUS
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB2
L21
0.1uF
C36
150uF
C85
15KR51
15KR54
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD2
VBU S2
0.01uFC83
1nFC84
VBU S
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB5
L51
0. 1uF
C34
150uF
C75
15KR33
15KR34
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD5
VBUS5
0. 01uFC73
1nFC74
VBUS
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB4
L41
0.1uF
C37
150uF
C90
15KR49
15KR50
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD4
VBU S4
0.01uFC88
1nFC89
VBU S
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB7
L71
0. 1uF
C35
150uF
C80
15KR38
15KR39
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD7
VBUS7
0. 01uFC78
1nFC79
VBUS
1
D-
2
D+
3
GND
4
CHASSIS
5
CHASSIS
6
USB_DOWN
USB6
L61
0.1uF
C38
150uF
C95
15KR47
15KR48
REF1
1
I/O1
2
I/O2
3
REF2
4
PSR05
ESD6
VBU S6
0.01uFC93
1nFC94
10KR55
10KR18
10KR19
NCR20
V3.3REG
J15
J13
J14
2K2
R63
2K2
R65
VCC5
J12
J11
J1
J2
J3
J4
J5
J6
DP7
V3.3REG
J10
J9
J8
J7
V3.3REG
DM0
DP0
DM1
DP1
DM2
DP2
DM3
DP3
DM4
DP4
DM5
DP5
DM6
DP6
DM7
PSW7
PSW6
PSW1
PSW2
PSW3
PSW4
PSW5
OC1
OC2
OC3
OC4
OC5
OC6
OC7
VCC5(69)
VAUX(30)
V3.3(11)
330RR40
REDD15
330RR4
AMBRD12
330RR8
GRND9
330RR12
GRND4
330RR1
AMBRD1
330RR5
AMBRD2
330RR9
GRND13
330RR13
GRND8
330RR2
AMBRD14
330RR6
AMBRD6
330RR10
GRND11
330RR14
GRND3
330RR3
AMBRD5
330RR7
AMBRD7
330RR11
GRND10
VCC5
PIGRN1
PIGRN2
PIGRN3
PIGRN4
PIGRN5
PIGRN6
PIGRN7
PIABR1
PIABR2
PIABR3
PIABR4
PIABR5
PIABR6
PIABR7
SUSPEND
NOOC
ADOC
SP/BP
SP/BP
HP
SUSPEND
ADOC
NOOC
PSW2
PSW1
PSW3
PSW4
PSW7
PSW6
PSW5
OC1
OC2
OC3
OC4
OC5
OC6
OC7
DM1
DP1
DP3
DM3
DM5
DM5
DM7 DP5
DP6
DM0
DM1
DM2
DM3
DM4
DP5
DP6
DM0
DM2
DM4
DM6DM7
DP7
DP4
DP0
DP1
DP2
DP2
DP3
DP4
DM6
DP7
DP0
VCC5(31)
VAUX(70)
V3.3(13)
V3.3(17)
V3.3(50)
V3.3(52)
V3.3(56)
V3.3REG
Qrpu NPN
5K6
RVbus
VBUS
J14(By default)
No EEPROM used: J11 & J12
EEPROM used: No J11 & J12