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STM32L4A6VG Datasheet(PDF) 246 Page - STMicroelectronics |
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STM32L4A6VG Datasheet(HTML) 246 Page - STMicroelectronics |
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246 / 282 page  Electrical characteristics STM32L4A6xG 246/282 DS11584 Rev 8 NAND controller waveforms and timings Figure 56 through Figure 59 represent synchronous waveforms, and Table 117 and Table 118 provide the corresponding timings. The results shown in these tables are obtained with the following FMC configuration: • COM.FMC_SetupTime = 0x01 • COM.FMC_WaitSetupTime = 0x03 • COM.FMC_HoldSetupTime = 0x02 • COM.FMC_HiZSetupTime = 0x01 • ATT.FMC_SetupTime = 0x01 • ATT.FMC_WaitSetupTime = 0x03 • ATT.FMC_HoldSetupTime = 0x02 • ATT.FMC_HiZSetupTime = 0x01 • Bank = FMC_Bank_NAND • MemoryDataWidth = FMC_MemoryDataWidth_16b • ECC = FMC_ECC_Enable • ECCPageSize = FMC_ECCPageSize_512Bytes • TCLRSetupTime = 0 • TARSetupTime = 0 In all timing tables, the THCLK is the HCLK clock period. Table 116. Synchronous non-multiplexed PSRAM write timings(1)(2) Symbol Parameter Min Max Unit tw(CLK) FMC_CLK period 2THCLK-0.5 - ns td(CLKL-NExL) FMC_CLK low to FMC_NEx low (x=0..2) - 2 td(CLKH-NExH) FMC_CLK high to FMC_NEx high (x= 0…2) THCLK+0.5 - td(CLKL-NADVL) FMC_CLK low to FMC_NADV low - 0.5 td(CLKL-NADVH) FMC_CLK low to FMC_NADV high 0 - td(CLKL-AV) FMC_CLK low to FMC_Ax valid (x=16…25) - 4 td(CLKH-AIV) FMC_CLK high to FMC_Ax invalid (x=16…25) 0 - td(CLKL-NWEL) FMC_CLK low to FMC_NWE low - 1.5 td(CLKH-NWEH) FMC_CLK high to FMC_NWE high THCLK+1 - td(CLKL-Data) FMC_D[15:0] valid data after FMC_CLK low - 3 td(CLKL-NBLL) FMC_CLK low to FMC_NBL low 1.5 - td(CLKH-NBLH) FMC_CLK high to FMC_NBL high THCLK+0.5 - tsu(NWAIT-CLKH) FMC_NWAIT valid before FMC_CLK high 2 - th(CLKH-NWAIT) FMC_NWAIT valid after FMC_CLK high 3.5 - 1. CL = 30 pF. 2. Guaranteed by characterization results. |
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