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
VCC3
VREF(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
VCC3
VREF(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
VCC1
GND
VCC4
GND
DM6
DP6
VCC2
GND
DM1
DP1
NOOC
DP4
DM4
GND
VCC2
DP3
DM3
GND
VCC4
GND
VCC1
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)