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STM32L471VG датащи(PDF) 199 Page - STMicroelectronics |
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STM32L471VG датащи(HTML) 199 Page - STMicroelectronics |
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199 / 218 page ![]() DocID027226 Rev 1 199/218 STM32L471xx Electrical characteristics 199 Figure 47. NAND controller waveforms for common memory write access Table 100. Switching characteristics for NAND Flash read cycles(1)(2) 1. CL = 30 pF. 2. Guaranteed by characterization results. Symbol Parameter Min Max Unit Tw(N0E) FMC_NOE low width 4THCLK-1 4THCLK+1 ns Tsu(D-NOE) FMC_D[15-0] valid data before FMC_NOE high 16 - Th(NOE-D) FMC_D[15-0] valid data after FMC_NOE high 6 - Td(NCE-NOE) FMC_NCE valid before FMC_NOE low - 3THCLK+1 Th(NOE-ALE) FMC_NOE high to FMC_ALE invalid 2THCLK-2 - Table 101. Switching characteristics for NAND Flash write cycles(1)(2) 1. CL = 30 pF. 2. Guaranteed by characterization results. Symbol Parameter Min Max Unit Tw(NWE) FMC_NWE low width 4THCLK-1 4THCLK+1 ns Tv(NWE-D) FMC_NWE low to FMC_D[15-0] valid - 2.5 Th(NWE-D) FMC_NWE high to FMC_D[15-0] invalid 3THCLK-4 - Td(D-NWE) FMC_D[15-0] valid before FMC_NWE high 5THCLK-3 - Td(NCE_NWE) FMC_NCE valid before FMC_NWE low - 3THCLK+1 Th(NWE-ALE) FMC_NWE high to FMC_ALE invalid 2THCLK-2 - |
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