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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F427AI датащи(PDF) 181 Page - STMicroelectronics |
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STM32F427AI датащи(HTML) 181 Page - STMicroelectronics |
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181 / 239 page  DocID024030 Rev 9 181/238 STM32F427xx STM32F429xx Electrical characteristics 197 PC Card/CompactFlash controller waveforms and timings Figure 63 through Figure 68 represent synchronous waveforms, and Table 98 and Table 99 provide the corresponding timings. The results shown in this table are obtained with the following FMC configuration: • COM.FMC_SetupTime = 0x04; • COM.FMC_WaitSetupTime = 0x07; • COM.FMC_HoldSetupTime = 0x04; • COM.FMC_HiZSetupTime = 0x00; • ATT.FMC_SetupTime = 0x04; • ATT.FMC_WaitSetupTime = 0x07; • ATT.FMC_HoldSetupTime = 0x04; • ATT.FMC_HiZSetupTime = 0x00; • IO.FMC_SetupTime = 0x04; • IO.FMC_WaitSetupTime = 0x07; • IO.FMC_HoldSetupTime = 0x04; • IO.FMC_HiZSetupTime = 0x00; • TCLRSetupTime = 0; • TARSetupTime = 0. In all timing tables, the THCLK is the HCLK clock period. td(CLKH-AIV) FMC_CLK high to FMC_Ax invalid (x=16…25) 0 - ns td(CLKL-NWEL) FMC_CLK low to FMC_NWE low - 0 ns td(CLKH-NWEH) FMC_CLK high to FMC_NWE high THCLK−0.5 - ns td(CLKL-Data) FMC_D[15:0] valid data after FMC_CLK low - 2.5 ns td(CLKL-NBLL) FMC_CLK low to FMC_NBL low 0 - ns td(CLKH-NBLH) FMC_CLK high to FMC_NBL high THCLK−0.5 - ns tsu(NWAIT-CLKH) FMC_NWAIT valid before FMC_CLK high 4 th(CLKH-NWAIT) FMC_NWAIT valid after FMC_CLK high 0 1. CL = 30 pF. 2. Guaranteed by characterization results. Table 97. Synchronous non-multiplexed PSRAM write timings(1)(2) (continued) Symbol Parameter Min Max Unit |
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