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USB2512BのメーカーはMicrochipです、この部品の機能は「USB 2.0 Hi-Speed Hub Controller」です。 |
部品番号 | USB2512B |
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部品説明 | USB 2.0 Hi-Speed Hub Controller | ||
メーカ | Microchip | ||
ロゴ | |||
このページの下部にプレビューとUSB2512Bダウンロード(pdfファイル)リンクがあります。 Total 30 pages
USB251xB/xBi
USB 2.0 Hi-Speed Hub Controller
General Description
The Microchip USB251xB/xBi hub is a family of low-
power, configurable, MTT (multi transaction translator)
hub controller IC products for embedded USB solu-
tions. The x in the part number indicates the number of
downstream ports available, while the B indicates bat-
tery charging support. The Microchip hub supports low-
speed, full-speed, and hi-speed (if operating as a hi-
speed hub) downstream devices on all of the enabled
downstream ports.
Highlights
• High performance, low-power, small footprint hub
controller IC with 2, 3, or 4 downstream ports
• Fully compliant with the USB 2.0 Specification [1]
• Enhanced OEM configuration options available
through either a single serial I2C EEPROM, or
SMBus slave port
• MultiTRAKTM
- High-performance multiple transaction trans-
lator which provides one transaction transla-
tor per port
• PortMap
- Flexible port mapping and disable sequenc-
ing
• PortSwap
- Programmable USB differential-pair pin loca-
tions ease PCB design by aligning USB sig-
nal lines directly to connectors
• PHYBoost
- Programmable USB signal drive strength for
recovering signal integrity using 4-level driv-
ing strength resolution
Features
• USB251xB/xBi products are fully footprint com-
patible with USB251x/xi/xA/xAi products as direct
drop-in replacements
— Cost savings include using the same PCB
components and application of USB-IF Compliance
by Similarity
• Full power management with individual or ganged
power control of each downstream port
• Fully integrated USB termination and pull-up/pull-
down resistors
• Supports a single external 3.3 V supply source;
internal regulators provide 1.2 V internal core volt-
age
• Onboard 24 MHz crystal driver or external
24 MHz clock input
• Customizable vendor ID, product ID, and device
ID
• 4 kilovolts of HBM JESD22-A114F ESD protection
(powered and unpowered)
• Supports self- or bus-powered operation
• Supports the USB Battery Charging specification
Rev. 1.1 for Charging Downstream Ports (CDP)
• The USB251xB/xBi offers the following packages:
- 36-pin SQFN (6x6 mm) (Preferred)
- 36-pin QFN (6x6 mm) (Legacy)
• USB251xBi products support the industrial tem-
perature range of -40ºC to +85ºC
• USB251xB products support the extended com-
mercial temperature range of 0ºC to +85ºC
Applications
• LCD monitors and TVs
• Multi-function USB peripherals
• PC motherboards
• Set-top boxes, DVD players, DVR/PVR
• Printers and scanners
• PC media drive bay
• Portable hub boxes
• Mobile PC docking
• Embedded systems
2010 - 2015 Microchip Technology Inc.
DS00001692C-page 1
1 Page USB251xB/xBi
Table of Contents
1.0 Introduction ..................................................................................................................................................................................... 4
2.0 Block Diagram ................................................................................................................................................................................. 6
3.0 Pin Information ................................................................................................................................................................................ 7
4.0 Battery Charging Support ............................................................................................................................................................. 17
5.0 Initial Interface/Configuration Options ........................................................................................................................................... 19
6.0 DC Parameters ............................................................................................................................................................................. 39
7.0 AC Specifications .......................................................................................................................................................................... 44
8.0 Package Marking Information ....................................................................................................................................................... 46
9.0 Package Information ..................................................................................................................................................................... 48
Appendix A: Acronyms ........................................................................................................................................................................ 50
Appendix B: References ..................................................................................................................................................................... 51
Appendix C: Data Sheet Revision History .......................................................................................................................................... 52
The Microchip Web Site ...................................................................................................................................................................... 54
Customer Change Notification Service ............................................................................................................................................... 54
Customer Support ............................................................................................................................................................................... 54
Product Identification System ............................................................................................................................................................. 55
2010 - 2015 Microchip Technology Inc.
DS00001692C-page 3
3Pages USB251xB/xBi
2.0 BLOCK DIAGRAM
FIGURE 2-1:
USB251XB/XBI HUB FAMILY BLOCK DIAGRAM
To upstream Upstream
VBUS
USB data
3.3 V
24 MHz
crystal
To I2C EEPROM or
SMBus master
SDA SCK
Bus-
power
detect/
Vbus pulse
Upstream
PHY
Repeater
VDDA
1.2 V reg
PLL
Serial
interface
engine
Serial
interface
Controller
3.3 V
1.2 V reg
VDDCR
...TT TT Port
#1 #x controller
Routing and port re-ordering logic
PHY#1
...Port #1
OC sense
switch driver/
LED drivers
PHY#x
Port #x
OC sense
switch driver/
LED drivers
USB data
downstream
OC Port
sense power
switch/
LED
drivers
USB data
downstream
OC Port
sense power
switch/
LED
drivers
x indicates the number of available downstream ports: 2, 3, or 4
DS00001692C-page 6
2010 - 2015 Microchip Technology Inc.
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ USB2512B データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
USB2512 | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512A | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512B | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512B | USB 2.0 Hi-Speed Hub Controller | Microchip |