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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PD720201 датащи(PDF) 30 Page - Renesas Technology Corp |
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PD720201 датащи(HTML) 30 Page - Renesas Technology Corp |
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30 / 43 page  μPD720201/μPD720202 3. ELECTRICAL SPECIFICATIONS R19DS0047EJ0500 Rev. 5.00 Page 30 of 40 Jan. 17, 2013 Table 3-23. Hi-Speed Source Electrical Characteristics Parameter Symbol Min Max Units Driver Characteristics: Rise Time (10% - 90%) T HSR 500 ps Fall Time (10% - 90%) T HSF 500 ps Driver waveform requirements See Figure 3-15 Clock Timings: Hi-Speed Data Rate T HSDRAT 497.760 480.240 Mb/s Microframe Interval T HSFRAME 124.9375 125.0625 μs Consecutive Microframe Interval Difference T HSRFI 4 Hi-Speed bit times Hi-Speed Data Timing: Data source jitter See Figure 3-15 Receiver jitter tolerance See Figure 3-13 Table 3-24. Hub Event Timings Parameter Symbol Min Max Units Time to detect a downstream facing port connect event T DCNN 2.5 2000 μs Time to detect a disconnect event at a hub’s downstream facing port T DDIS 2 2.5 μs Duration of driving resume to a downstream port T DRSMDN 20 ms Time from detecting downstream resume to rebroadcast T URSM 1.0 ms Inter-packet delay for packets traveling in same direction T HSIPDSD 88 Bit times Inter-packet delay for packets traveling in opposite direction T HSIPDOD 8 Bit times Inter-packet delay for root hub response for Hi-Speed T HSRSPIPD1 192 Bit times Time for which a Chirp J or Chirp K must be continuously detected by hub during Reset handshake T FILT 2.5 μs Time after end of device Chirp K by which hub must start driving first Chirp K in the hub’s chirp sequence T DCHBIT 100 μs Time for which each individual Chirp J or Chirp K in the chirp sequence is driven downstream by hub during reset T DCHBIT 40 60 μs Time before end of reset by which a hub must end its downstream chirp sequence T DCHSE0 100 500 μs |
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