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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 5 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
7. Pinning information
7.1 Pinning
7.2 Pin description
Fig 2. Pin configuration.
ISP1521BE
MLD712
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
SDA
SCL
HUBGL_N
AMB5_N
GRN5_N
AMB6_N
GRN6_N
AMB1_N
GRN1_N
GND
V
CC3
V
REF(5V0)
AMB2_N
GRN2_N
AMB7_N
GRN7_N
AMB3_N
GRN3_N
AMB4_N
GRN4_N
TEST_LOW
TEST_HIGH
OC1_N
PSW1_N
OC6_N
PSW6_N
OC5_N
PSW5_N
GND
V
CC3
V
REF(5V0)
OC4_N
PSW4_N
OC3_N
PSW3_N
OC7_N
PSW7_N
OC2_N
PSW2_N
RESET_N
SUSPEND
GND
DM0
DP0
RPU
GND
RREF
GND
DM5
DP5
V
CC1
GND
V
CC4
GND
DM6
DP6
V
CC2
GND
DM1
DP1
NOOC
DP4
DM4
GND
V
CC2
DP3
DM3
GND
V
CC4
GND
V
CC1
DP7
DM7
GND
DP2
DM2
GND
XTAL2
XTAL1
ADOC
Table 2: Pin description
[1]
Symbol
[2]
Pin Type Description
SUSPEND 1 O suspend indicator output; a HIGH level indicates that the hub is
in the suspend mode
GND 2 - ground supply
DM0 3 AI/O upstream facing port 0 D− connection (analog)