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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM3703CUS датащи(PDF) 232 Page - Texas Instruments |
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AM3703CUS датащи(HTML) 232 Page - Texas Instruments |
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232 / 280 page  mmx_txen_n mmx_txdat mmx_txse0 mmx_rxrcv FSU16 FSU14 FSU15 FSU10 FSU10 FSU11 FSU11 FSU12 FSU13 FSU17 FSU18 Transmit Receive SWPS038-075 AM3715, AM3703 SPRS616F – JUNE 2010 – REVISED AUGUST 2011 www.ti.com Table 6-87. LS- / FS-USB Switching Characteristics —Bidirectional Standard 4-Pin Mode(1) (2) (continued) NO. PARAMETER OPP100 OPP50 UNIT MIN MAX MIN MAX FSU18 td(se0V-txenH) Delay time, mmx_txse0 invalid before mmx_txen_n 81.8 81.8 ns high (1) In mmx, x is equal to 0, 1, or 2. (2) See Section 4.3.4, Processor Clocks. (1) In mmx, x is equal to 0, 1, or 2. Figure 6-49. LS- / FS-USB —Bidirectional Standard 4-Pin Mode 6.6.3.3 FS-USB —Bidirectional Standard 3-pin Mode Table 6-89 and Table 6-90 assume testing over the recommended operating conditions and electrical characteristic conditions below (see Figure 6-50). Table 6-88. LS- / FS-USB Timing Conditions —Bidirectional Standard 3-Pin Mode TIMING CONDITION PARAMETER VALUE UNIT Input Conditions tR Input signal rise time 2 ns tF Input signal fall time 2 ns Output Condition CLOAD Output load capacitance(1) 15 pF (1) Buffer strength configuration: LB0 = 1. Table 6-89. LS- / FS-USB Timing Requirements —Bidirectional Standard 3-Pin Mode(1) (2) NO. PARAMETER OPP100 OPP50 UNIT MIN MAX MIN MAX FSU19 td(d,se0) Time duration, mmx_txdat and mmx_txse0 low 14 14 ns together during transition FSU20 td(d,se0) Time duration, mmx_tsdat and mmx_txse0 high 8 8 ns together during transition (1) In mmx, x is equal to 0, 1, or 2. (2) See Section 4.3.4, Processor Clocks. 232 Timing Requirements and Switching Characteristics Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3715 AM3703 |
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