参数资料
型号: RX-4571SA
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO14
封装: ROHS COMPLIANT, SOP-14
文件页数: 3/76页
文件大小: 1924K
代理商: RX-4571SA
USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
11
Revision 1.1 (04-26-10)
DATASHEET
Chapter 4 Block Diagram
Figure 4.1 USB251x Hub Family Block Diagram
Note 4.1
USB2512A/USB2512Ai only supports a single transaction translator.
Note 4.2
The LED port indicators only apply to USB2513/13i/14/14i (48QFN only) and USB2517/17i.
To Upstream
VBUS
3.3 V
Upstream
PHY
Upstream
USB Data
Repeater
Controller
Serial
Interface
Engine
Serial
Interface
To EEPROM or
SMBus Master
SCL
SDA
Port
Controller
Bus-
Power
Detect/
Vbus Pulse
PHY#1
USB Data
Downstream
OC
Sense
Switch/
LED
Drivers
USB Data
Downstream
Port
Power
3.3 V
PLL
24 MHz
Crystal
Routing & Port Re-Ordering Logic
Regulator
CRFILT
Port
Power
Regulator
PHY#x
Port #x
OC Sense
Switch Driver/
LED Drivers
TT
#x
TT
#1
...
Port #1
OC Sense
Switch Driver/
LED Drivers
OC
Sense
Switch/
LED
Drivers
...
The ‘x’ indicates the number of available downstream ports: 2, 3, 4, or 7.
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