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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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DP83266 Scheda tecnica(PDF) 144 Page - National Semiconductor (TI) |
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DP83266 Scheda tecnica(HTML) 144 Page - National Semiconductor (TI) |
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144 / 152 page  90 Electrical Characteristics (Continued) AC Characteristics for Port A Interface and Port B Interface for MACSI Revision C Symbol Parameter Min Typ Max Units T26 PHY Data Inputs ECIP ECOPY EM EA 20 ns Setup to LBC1 T27 PHY Data Inputs ECIP ECOPY EM EA 2 ns Hold from LBC1 T28 PHY Data Outputs LEARN 8 ns Sustain from LBC1 T29 PHY Data Outputs LEARN 35 ns LBC1 to Data Valid T32 ABus Outputs 20 ns AB CLK to TRI-STATE T33 AB AD(310) AB BP Output 20 ns AB CLK to Data Valid T34 AB AD(310) AB BP Output 5 ns Sustain from AB CLK T35 AB AD(310) AB BP Input 15 ns Setup to AB CLK T36 AB AD(310) AB BP Input 7 ns Hold from AB CLK T37 AB ACK AB BG 20 ns Setup to AB CLK T38 AB ACK AB BG 7ns Hold from AB CLK T39 AB ERR AB DEN 20 ns Setup to AB CLK T40 AB ERR AB DEN 7ns Hold from AB CLK T41 AB AS AB SIZ(20) AB RW AB DEN 20 ns AB BR AB A Data Valid from AB CLK T42 AB AS AB SIZ(20) AB RW AB DEN 5ns AB BR AB A Data sustain from AB CLK F1 AB CLK Frequency 125 25 MHz This specification applies to ‘‘normal’’ ABus Mode only (SIMR1EAM e 0) For information regarding the Enhanced ABus Mode specification (SIMR1EAM e 1) please contact National Semiconductor TLF11705 – 23 FIGURE 9-6 PHY Interface Timing 144 |
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