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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AM79C975VCW Datenblatt(PDF) 229 Page - Advanced Micro Devices |
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AM79C975VCW Datenblatt(HTML) 229 Page - Advanced Micro Devices |
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229 / 304 page  Am79C973/Am79C975 229 P R E L I M INARY SWITCHING CHARACTERISTICS: EXTERNAL ADDRESS DETECTION INTERFACE Note: 1. May need to delay RX_CLK to capture Start Frame Byte Delimiter (SFBD) at 100 Mbps operation. Analog I/O - MLT-3 Mode Analog I/O - MLT-3 Mode 10BASE-T Mode Parameter Symbol Parameter Name Test Condition Min Max Unit External Address Detection Interface: Internal PHY @ 25 MHz tEAD7 SFBD change to ↓ RX_CLK 0 20 (Note 1) ns tEAD8 EAR deassertion to ↑ RX_CLK (first rising edge) 40 ns tEAD9 EAR assertion after SFD event (frame rejection) 0 5,080 ns tEAD10 EAR assertion width 50 ns External Address Detection Interface: Internal PHY @ 2.5 MHz tEAD11 EAR deassertion to ↑ RX_CLK (first rising edge) 400 ns tEAD12 EAR assertion after SFD event (frame rejection) 0 50,800 ns tEAD13 EAR assertion width 500 ns Receive Frame Tag Timing with Media Independent Interface tEAD14 RXFRTGE assertion to ↑SF/BD (first rising edge) 0 ns tEAD15 RXFRTGE, RXFRTGD setup to ↑ RX_CLK 10 ns tEAD16 RXFRTGE, RXFRTGD hold to ↑ RX_CLK 10 ns tEAD17 RXFRTGE deassertion to ↓ RX_DV RX_CLK @25 MHz RX_CLK @2.5 MHz 40 400 ns ns Symbol Parameter Description Test Conditions Minimum Maximum Unit VTXD Output Peak Voltage 950 1050 mV VSDA Input Differential Assert Threshold (peak to peak) -- 1,000 mV VSDD Input Differential Deassert Threshold (peak to peak) 200 -- mV IIX Input Leakage Current -10 10 µA Symbol Parameter Description Test Conditions Minimum Maximum Unit VOUT Output Voltage on TX± (peak) 1.55 1.98 V VDIFF Input Differential Squelch Assert on RX± (peak) 300 520 mV |
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