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OMAP3530ECBC 数据表(PDF) 218 Page - Texas Instruments |
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OMAP3530ECBC 数据表(HTML) 218 Page - Texas Instruments |
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218 / 264 page  mmx_txen_n mmx_txdat mmx_txse0 FSU23 FSU21 FSU22 FSU19 FSU19 FSU20 FSU20 FSU24 FSU25 Transmit Receive 030-082 6.6.3.4 Multiport Full-Speed Universal Serial Bus (USB) – Unidirectional TLL 6-pin Mode OMAP3530/25 Applications Processor SPRS507F – FEBRUARY 2008 – REVISED OCTOBER 2009 www.ti.com Table 6-85. Low-/Full-Speed USB Switching Characteristics – Bidirectional Standard 3-pin Mode NO. PARAMETER 1.15 V 1.0 V UNIT MIN MAX MIN MAX FSU21 td(TXENL-DATV) Delay time, mmx_txen_n low to mmx_txdat valid 81.8 84.8 81.8 84.8 ns FSU22 td(TXENL-SE0V) Delay time, mmx_txen_n low to mmx_txse0 valid 81.8 84.8 81.8 84.8 ns FSU23 ts(DAT-SE0) Skew between mmx_txdat and mmx_txse0 1.5 1.5 ns transition FSU24 td(DATI-TXENH) Delay time, mmx_txdat invalid to mmx_txen_n 81.8 81.8 ns high FSU25 td(SE0I-TXENH) Delay time, mmx_txse0 invalid to mmx_txen_n 81.8 81.8 ns high tR(do) Rise time, mmx_txen_n 4.0 4.0 ns tF(do) Fall time, mmx_txen_n 4.0 4.0 ns tR(do) Rise time, mmx_txdat 4.0 4.0 ns tF(do) Fall time, mmx_txdat 4.0 4.0 ns tR(do) Rise time, mmx_txse0 4.0 4.0 ns tF(do) Fall time, mmx_txse0 4.0 4.0 ns In mmx, x is equal to 0, 1, or 2. Figure 6-45. Low-/Full-Speed USB – Bidirectional Standard 3-pin Mode Table 6-87 and Table 6-88 assume testing over the recommended operating conditions (see Figure 6-46). Table 6-86. Low-/Full-Speed USB Timing Conditions – Unidirectional TLL 6-pin Mode TIMING CONDITION PARAMETER VALUE UNIT Input Conditions tR Input signal rise time 2 ns tF Input signal fall time 2 ns Output Conditions CLOAD Output load capacitance 15 pF Table 6-87. Low-/Full-Speed USB Timing Requirements – Unidirectional TLL 6-pin Mode NO. PARAMETER 1.15 V 1.0 V UNIT MIN MAX MIN MAX FSUT1 td(SE0,DAT) Time duration, mmx_txse0 and mmx_txdat low 14 14 ns together during transition FSUT2 td(SE0,DAT) Time duration, mmx_txse0 and mmx_txdat high 8 8 ns together during transition TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS 218 Submit Documentation Feedback |
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