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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PD720201 датащи(PDF) 34 Page - Renesas Technology Corp |
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PD720201 датащи(HTML) 34 Page - Renesas Technology Corp |
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34 / 43 page  μPD720201/μPD720202 3. ELECTRICAL SPECIFICATIONS R19DS0047EJ0500 Rev. 5.00 Page 34 of 40 Jan. 17, 2013 3.8.10 SPI Type Serial ROM Interface Table 3-25. SPI Type Serial ROM Interface Signals Timing (SPI Mode 0) Parameter Symbol Min. Max. Units SPISCK Clock Frequency 1 20 MHz Clock pulses width Low t SCLLOW 25 ns Clock pulses width high t SCLHIGH 25 ns SPICSB disable time t SCSDIS 100 ns SPICSB setup time t SCSSU 25 ns SPICSB hold time t SCSH 20 ns SPISI setup time to SPISCK rising edge t SDWSU 6 ns SPISI hold time from SPISCK rising edge t SDWH 6 ns SPISO validate time from SPISCK falling edge t SDRVALID 25 ns SPISO hold time from SPISCK falling edge t SDRH 0 ns SPISO pull-up time from SPICSB disabled (Note) t SRDET 170 ns Note “SPISO disable time from SPICSB disabled [t SDRDIS]” is expanded including “SPISO pull-up time [tSRDET]” as of Rev5.00. This specification must be met only if μPD720201 and μPD720202 aborts firmware loading by PCIe reset. <R> <R> |
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