參數(shù)資料
型號： 20H04
廠商： SMSC Corporation
英文描述： 4-PORT USB2.0 HUB CONTROLLER
中文描述： 4端口USB2.0集線器控制器
文件頁數(shù)： 3/38頁
文件大?。?/td> 919K
代理商： 20H04
4-Port USB2.0 Controller
Datasheet
SMSC USB20H04
Page 3
Revision 1.63 (10-14-04)
DATASHEET
USB20H04 Datasheet Revisions
PAGE(S)
SECTION/FIGURE/ENTRY
CORRECTION
REVISION LEVEL
AND DATE
Revision 1.63
(10-14-04)
Revision 1.62
(09-10-04)
Cover
Ordering Information
Added lead-free part number
26
Table 8.4
Removed 0000 from the over-current timer
value, which places it into the reserved
category
Lower limit for the 1.8V regulator
specification changed from 1.6 to 1.74V.
(Note upper limit restored to previous value
of 2.0V)
1.8V regulator specification changed to
±
5%. (was
±
10%)
VBUSDET pin description updated
15, 16,
18
Table 5.2, 6.1, 6.2, 6.4
Revision 1.61
(07-28-04)
15
Table 5.2 – Recommended
Operating Conditions
Revision 1.6
(07-14-04)
Revision 1.5
(04-01-04)
Revision 1.4
(12-10-03)
13
Table 4.3 - USB I/O Signals
Cover
Title
Title changed from “Hi-Speed USB Hub
Controller IC” to “4-Port USB2.0 Hub
Controller”
Updated diagram.
24
Figure 8.2 - Internal Default Mode
Revision 1.3
11-13-03
Revision 1.3
11-11-03
Revision 1.3
11-11-03
Revision 1.3
11-11-03
Revision 1.3
11-11-03
Revision 1.3
11-05-03
Revision 1.3
10-31-03
Revision 1.3
10-31-03
Revision 1.3
10-31-03
Revision 1.3
10-31-03
Revision 1.3
10-31-03
Revision 1.3
10-31-03
Revision 1.2
08-04-03
Revision 1.2
08-04-03
20
7.5.2 - I
2
C Memory Interface
Removed last sentence.
24
Figure 8.2 - Internal Default Mode
Updated figure.
27
Table 8.6 - Default Configuration
Values
Updated table with note about PID
changing with silicon revision.
36
Figure 10.1 - High Level Block
Diagram of a Self-Powered Hub
Removed (128x8) from figure.
Cover - Ordering Information
Changed from “USB20H04
L
-JD” to
“USB20H04-JD”.
8
Chapter 1 General Description
Added paragraph 3.
9
1.3 Pin Selectable Options to the
Default Configuration
Added new section.
10
Figure 2.1 - Block Diagram
Added default configuration to diagram.
19
7.4 Internal Configuration Select
Section is updated.
24
8.1.2 Internal Default Configuration
Section is updated.
27
Table 8.6 - Default Configuration
Values
Table added.
23
Chapter 8 Implementation Notes
Modified first paragraph.
28
Table 8.7 - Time Values to
Configure from SMBus
Values added to MAX column:
T2 – 32 ns
T4 – 70 ns
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