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数据搜索系统，热门电子元器件搜索 |
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LAN9500AI 数据表(PDF) 60 Page - SMSC Corporation |
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LAN9500AI 数据表(HTML) 60 Page - SMSC Corporation |
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60 / 66 page  USB 2.0 to 10/100 Ethernet Controller Datasheet Revision 1.1 (04-18-13) 60 SMSC LAN950x Family DATASHEET 8.5.6 Turbo MII Interface Timing This section specifies the Turbo MII interface transmit and receive timing. Note 8.16 Timing was designed for system load between 10 pf and 15 pf. Figure 8.7 Turbo MII Transmit Timing Table 8.20 Turbo MII Transmit Timing Values SYMBOL DESCRIPTION MIN MAX UNITS NOTES tclkp TXCLK period 20 ns tclkh TXCLK high time tclkp*0.4 tclkp*0.6 ns tclkl TXCLK low time tclkp*0.4 tclkp*0.6 ns tval TXD[3:0], TXEN output valid from rising edge of TXCLK 12.5 ns Note 8.16 thold TXD[3:0], TXEN output hold from rising edge of TXCLK 1.5 ns Note 8.16 TXCLK TXD[3:0] TXEN tclkh tclkl tclkp tval thold tval tval thold |
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