PD720113 Figure 2-14. Hub EOP Delay and EOP Skew t<" />
參數(shù)資料
型號(hào): UPD720113GK-9EU-A
廠商: Renesas Electronics America
文件頁(yè)數(shù): 20/34頁(yè)
文件大?。?/td> 0K
描述: IC HUB CTLR USB2.0 7-PORTS QFP
標(biāo)準(zhǔn)包裝: 50
控制器類(lèi)型: USB 2.0 集線器控制器
接口: USB 2.0
電源電壓: 2.5 V,3.3 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 80-TQFP
供應(yīng)商設(shè)備封裝: 80-TQFP
包裝: 托盤(pán)
Data Sheet S16618EJ3V0DS
25
PD720113
Figure 2-14. Hub EOP Delay and EOP Skew
tEOP-
tEOP+
tEOP- tEOP+
C. Upstream EOP Delay with or without Cable
Upstream
End of
Cable
Upstream
Port of Hub
Downstream
Port of Hub
Downstream
Port of Hub
Downstream
Port of Hub
Upstream Port
or
End of Cable
A. Downstream EOP Delay with Cable
B. Downstream EOP Delay without Cable
VSS
50% Point of
Initial Swing
Crossover
Point
Extended
Crossover
Point
Extended
Crossover
Point
Extended
EOP Delay:
tFEOPD = tEOPy
tHDDx
(tEOPy means that this equation applies to tEOP- and tEOP+)
EOP Skew:
tFHESK = tEOP+
tEOP-
Low-speed timings are determined in the same way for:
tLEOPD and tLHESK
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