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USB2422/MJ PDF预览

USB2422/MJ

更新时间： 2024-11-14 12:30:27
品牌 Logo 应用领域
SMSC 控制器
页数 文件大小 规格书
51页 771K
描述
2-Port USB 2.0 Hi-Speed Hub Controller

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中文翻译

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USB2422/MJ 数据手册

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USB2422  
2-Port USB 2.0 Hi-Speed Hub Controller  
Datasheet  
PRODUCT FEATURES  
General Description  
Highlights  
High performance, low-power, small footprint hub  
controller IC with two downstream ports  
The SMSC USB2422 hub is a low-power, single transaction  
translator, hub controller IC with two downstream ports for  
embedded USB solutions. The SMSC hub controller can  
attach to an upstream port as a Hi-Speed and Full-Speed  
hub or as a Full-Speed only hub. The SMSC hub supports  
Low-Speed, Full-Speed, and Hi-Speed (when configured as  
a Hi-Speed hub) downstream devices on the enabled  
downstream ports.  
Fully compliant with the USB 2.0 Specification  
Optimized for minimal bill-of-materials and low-cost  
designs  
All required resistors on the USB ports are integrated into  
the hub. This includes all series termination resistors on D+  
and D- pins and all required pull-down and pull-up resistors  
on D+ and D- pins. The over-current sense inputs for the  
downstream facing ports have internal pull-up resistors.  
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  
Features  
Supports the USB Battery Charging Specification,  
Revision 1.1  
Fully integrated USB termination and pull-up/pull-  
down resistors  
Mobile PC docking  
Embedded systems  
Supports a single external 3.3 V supply source;  
internal regulators provide 1.2 V internal core voltage  
Gaming consoles  
Cable/DSL modems  
HDD enclosures  
On-chip driver for 24 MHz crystal resonator or  
external 24 MHz clock input  
KVM switches  
ESD protection up to 6 kV on all USB pins  
Supports self-powered operation  
Server front panels  
Point-of-Sale (POS) systems  
IP telephony  
SMSC hub contains a built-in default configuration;  
no external configuration options or components are  
required  
Automobile/home audio systems  
Thin client terminals  
Downstream ports as non-removable ports  
Downstream port power control and over-current  
detection on an individual or ganged basis  
Supports compound devices on a port-by-port basis  
24-pin SQFN (4x4 mm), RoHS-compliant package  
Commercial temperature range support:  
0ºC to +70ºC  
Industrial temperature range support:  
-40ºC to +85ºC  
SMSC USB2422  
DATASHEET  
Revision 1.0 (06-04-13)  
1234567...51

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