20H04 Datasheet, PDF (3/38 Pages) SMSC Corporation – 4-PORT USB2.0 HUB CONTROLLER

4-Port USB2.0 Controller
Datasheet
USB20H04 Datasheet Revisions
PAGE(S)
SECTION/FIGURE/ENTRY
Cover Ordering Information
CORRECTION
Added lead-free part number
26
Table 8.4
15, 16, Table 5.2, 6.1, 6.2, 6.4
18
15
Table 5.2 – Recommended
Operating Conditions
13
Table 4.3 - USB I/O Signals
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
Cover
24
20
Title
Figure 8.2 - Internal Default Mode
7.5.2 - I²C Memory Interface
Title changed from “Hi-Speed USB Hub
Controller IC” to “4-Port USB2.0 Hub
Controller”
Updated diagram.
Removed last sentence.
24
Figure 8.2 - Internal Default Mode Updated figure.
27
Table 8.6 - Default Configuration Updated table with note about PID
Values
changing with silicon revision.
36
Figure 10.1 - High Level Block
Removed (128x8) from figure.
Diagram of a Self-Powered Hub
Cover - Ordering Information
Changed from “USB20H04L-JD” to
“USB20H04-JD”.
8
Chapter 1 General Description
Added paragraph 3.
9
1.3 Pin Selectable Options to the Added new section.
Default Configuration
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 Table added.
Values
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
REVISION LEVEL
AND DATE
Revision 1.63
(10-14-04)
Revision 1.62
(09-10-04)
Revision 1.61
(07-28-04)
Revision 1.6
(07-14-04)
Revision 1.5
(04-01-04)
Revision 1.4
(12-10-03)
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
SMSC USB20H04
Page 3
DATASHEET
Revision 1.63 (10-14-04)