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UT699E Datasheet(PDF) 33 Page - Aeroflex Circuit Technology |
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UT699E Datasheet(HTML) 33 Page - Aeroflex Circuit Technology |
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33 / 41 page ![]() 33 Aeroflex Microelectronics Solutions - HiRel 36-00-00-001 Ver. 1.5.0 4.7 Timing Characteristics for Ethernet Interface (VDD = 3.3V + 0.3V; VDDC = 1.2V + 0.1V; TC = -55oC to 105oC) Notes: 1. All outputs are measured using the load conditions shown in Figure 17. 2. ERX_ER timing is guaranteed by design. 3. ERX_COL and ERX_CRS are asynchronous inputs and are not tested. 4. tAMBA is defined as tSYSCLK. 5. Guaranteed by design. Figure 13. Ethernet Transmit and Receive Timing Figure 14. Ethernet MDIO Interface Timing Symbol Description Conditions Min Max Units t251 ETX_CLK↑ to output valid (ETXD[3:0], and ETX_EN) -- 12 ns t262,3 Setup time to ERX_CLK↑ (ERX_DV, ERX_ER, and ERXD[3:0]) 1-- ns t272,3 Hold time from ERX_CLK↑ (ERX_DV, ERX_ER, and ERXD[3:0]) 1-- ns t281 EMDC↑ to output valid (EMDIO) -4+tAMBA4 4+tAMBA4 ns t295 Setup time to EMDC↑ (EMDIO) 10 -- ns t305 Hold time from EMDC↑ (EMDIO) 10 -- ns t27 t26 t25 ETX_CLK All Outputs ERX_CLK All Inputs t30 t29 t28 EMDC EMDIO (Output) EMDIO (Input) |
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