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DP83848C датащи(PDF) 63 Page - National Semiconductor (TI) |
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DP83848C датащи(HTML) 63 Page - National Semiconductor (TI) |
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63 / 82 page ![]() 63 www.national.com 8.2 AC Specs 8.2.1 Power Up Timing Parameter Description Notes Min Typ Max Units T2.1.1 Post Power Up Stabilization time prior to MDC preamble for register accesses MDIO is pulled high for 32-bit serial man- agement initialization X1 Clock must be stable for a min. of 167ms at power up. 167 ms T2.1.2 Hardware Configuration Latch- in Time from power up Hardware Configuration Pins are de- scribed in the Pin Description section X1 Clock must be stable for a min. of 167ms at power up. 167 ms T2.1.3 Hardware Configuration pins transition to output drivers 50 ns Vcc Hardware RESET_N MDC 32 clocks Latch-In of Hardware Configuration Pins Dual Function Pins Become Enabled As Outputs input output T2.1.3 T2.1.2 T2.1.1 X1 clock |
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