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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M65818AFP датащи(PDF) 23 Page - Renesas Technology Corp |
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M65818AFP датащи(HTML) 23 Page - Renesas Technology Corp |
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23 / 39 page  M65818AFP Rev.1.00, Sep.04.2003, page 23 of 38 (5)BFVdd, BFVss 58 68 These pins are Power supply and GND for input/output buffer (3.3V/5V ). In a case that BFVdd pin is applied at 5.0V, input/output voltage level of 34-67pins becomes 5.0V signal level. In another case that BFVdd pin is supplied at 3.3V, input/output pins (34-67 pins) becomes 3.3V signal level. 5.18. Power sequences System power-on sequencing * Refer to following figure. System power-on sequencing * Refer to following figure. X X X X X Power( Vddxxx,XVdd, XOVdd, DVdd, BFVdd) Master clock ( XfsoIN, XfsiIN) INIT SCDT SCSHIFT SCLATCH Over 5msec(*1) Over 0sec(*2) Over 2/fso(*3) Power ON Power OFF *1 After a power supply and Master clock become to stable, INIT pin must be "L" over 5 msec. *2 Data transfer is possible right after INIT release. *3 Until SCLATCH is operated, a period over 2/fso ( fso=48kHz, over 42usec ) is necessary after INIT release. |
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