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USB2512B
SMSC USB2512B Manuals
Manuals and User Guides for SMSC USB2512B. We have
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SMSC USB2512B manual available for free PDF download: Datasheet
SMSC USB2512B Datasheet (72 pages)
USB 2.0 Hi-Speed Hub Controller
Brand:
SMSC
| Category:
Controller
| Size: 1 MB
Table of Contents
Product Features
1
Order Numbers
2
Table of Contents
3
Chapter 1 Usb251X Hub Family Differences Overview
7
Table 1.1 36-Pin QFN (6X6X0.5 MM) Rohs Compliant Part Numbers
7
Table 1.2 48-Pin QFN (7X7X0.5 MM) Rohs Compliant Part Numbers
7
Table 1.3 64-Pin QFN (9X9X0.5 MM) Rohs Compliant Part Numbers
7
Chapter 2 General Description
8
OEM Selectable Features
8
Chapter 3 Acronyms
10
Chapter 4 Block Diagram
11
Figure 4.1 Usb251X Hub Family Block Diagram
11
Chapter 5 Pin Descriptions
12
Pin Configurations and Lists (Organized by Package Type)
12
Figure 5.1 2-Port 36-Pin QFN
12
Figure 5.2 3-Port 36-Pin QFN
13
Figure 5.3 4-Port 36-Pin QFN
14
Figure 5.4 3-Port 48-Pin QFN
15
Figure 5.5 4-Port 48-Pin QFN
16
Figure 5.6 7-Port 64-Pin QFN
17
Table 5.1 Pin List in Alphabetical Order
18
Usb251X Pin Descriptions (Grouped by Function)
22
Table 5.2 Usb251X Pin Descriptions
22
Buffer Type Descriptions
27
Table 5.3 Buffer Type Descriptions
27
Chapter 6 LED Usage Description
29
LED Functionality
29
USB Mode 14-Wire
29
LED Mode Speed Indication
29
Figure 6.1 Dual Color LED Implementation Example
29
Chapter 7 Battery Charging Support
31
General Description
31
USB Battery Charging
31
Special Behavior of PRTPWR Pins
31
Figure 7.1 Battery Charging Via External Power Supply
31
Battery Charging Configuration
32
Battery Charging Enabled Via EEPROM or Smbus
32
Chapter 8 Configuration Options
33
Hub
33
Hub Configuration Options
33
Smbus or EEPROM Interface
33
Table 8.1 Hub Configuration Options
33
Vbus Detect
34
EEPROM Interface
34
Internal Register Set (Common to EEPROM and Smbus)
35
Table 8.2 Internal Default, EEPROM and Smbus Register Memory Map
35
Product ID LSB
37
Product ID MSB
37
Configuration Data Byte
39
Configuration Data Byte
40
Non-Removable Devices
40
Power-On Time
43
Language ID High
43
Manufacturer String Length
43
Product String Length
43
Table 8.3 Portmap Register for Ports 1 & 2
48
Table 8.4 Portmap Register for Ports 3 & 4
49
Table 8.5 Portmap Register for Ports 5 & 6
50
Table 8.6 Portmap Register for Port 7
51
I 2 C Eeprom
52
In-Circuit EEPROM Programming
52
Smbus Slave Interface
53
Smbus Slave Addresses
53
Bus Protocols
53
Figure 8.1 Block Write
53
Invalid Protocol Response Behavior
54
General Call Address Response
54
Slave Device Time-Out
54
Stretching the SCLK Signal
54
Smbus Timing
54
Bus Reset Sequence
54
Figure 8.2 Block Read
54
Smbus Alert Response Address
55
Default Configuration Option
55
Default Strapping Options
55
Reset
55
External Hardware RESET_N
55
Table 8.7 Reset_N Timing for Default/Strap Option Mode
56
Figure 8.3 Reset_N Timing for Default/Strap Option Mode
56
Table 8.8 Reset_N Timing for EEPROM Mode
57
Figure 8.4 Reset_N Timing for EEPROM Mode
57
USB Bus Reset
58
Table 8.9 Reset_N Timing for Smbus Mode
58
Figure 8.5 Reset_N Timing for Smbus Mode
58
Chapter 9 DC Parameters
60
Maximum Guaranteed Ratings
60
Operating Conditions
60
Table 9.1 DC Electrical Characteristics
61
Figure 9.1 Supply Rise Time Model
61
Table 9.2 Pin Capacitance
65
Chapter 10 AC Specifications
66
Oscillator/Clock
66
Smbus Interface
66
I 2 C Eeprom
66
Usb 2.0
66
Figure 10.1 Typical Crystal Circuit
66
Figure 10.2 Formula to Find the Value of C1 and C2
66
Figure 10.3 Simplified Form of the Capacitance Formula
66
Chapter 11 Package Outlines
67
Figure 11.1 36-Pin QFN, 6X6 MM Body, 0.5 MM Pitch
67
Figure 11.2 48-Pin QFN, 7X7 MM Body, 0.5 MM Pitch
68
Figure 11.3 64-Pin QFN, 9X9 MM Body, 0.5 MM Pitch
69
Tape and Reel Specifications
70
Figure 11.4 36-Pin Package Tape Specifications
70
Figure 11.5 48-Pin Package Tape Specifications
71
Figure 11.6 36-Pin and 48-Pin Package Reel Specifications
72
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