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STM32H742AI Datasheet(PDF) 272 Page - STMicroelectronics |
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STM32H742AI Datasheet(HTML) 272 Page - STMicroelectronics |
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272 / 357 page  Electrical characteristics (rev V) STM32H742xI/G STM32H743xI/G 272/357 DS12110 Rev 7 Figure 87. NAND controller waveforms for common memory write access Table 175. Switching characteristics for NAND Flash read cycles(1) 1. Guaranteed by characterization results. Symbol Parameter Min Max Unit tw(N0E) FMC_NOE low width 4Tfmc_ker_ck – 0.5 4Tfmc_ker_ck+0.5 ns tsu(D-NOE) FMC_D[15-0] valid data before FMC_NOE high 8- th(NOE-D) FMC_D[15-0] valid data after FMC_NOE high 0- td(ALE-NOE) FMC_ALE valid before FMC_NOE low - 3Tfmc_ker_ck +1 th(NOE-ALE) FMC_NWE high to FMC_ALE invalid 4Tfmc_ker_ck –2 - Table 176. Switching characteristics for NAND Flash write cycles(1) 1. Guaranteed by characterization results. Symbol Parameter Min Max Unit tw(NWE) FMC_NWE low width 4Tfmc_ker_ck – 0.5 4Tfmc_ker_ck +0.5 ns tv(NWE-D) FMC_NWE low to FMC_D[15-0] valid 0- th(NWE-D) FMC_NWE high to FMC_D[15-0] invalid 2Tfmc_ker_ck – 0.5 - td(D-NWE) FMC_D[15-0] valid before FMC_NWE high 5Tfmc_ker_ck – 1 - td(ALE-NWE) FMC_ALE valid before FMC_NWE low -3Tfmc_ker_ck +0.5 th(NWE-ALE) FMC_NWE high to FMC_ALE invalid 2Tfmc_ker_ck – 1 - MS32770V1 tw(NWE) th(NWE-D) tv(NWE-D) FMC_NWE FMC_N OE FMC_D[15:0] td(D-NWE) ALE (FMC_A17) CLE (FMC_A16) FMC_NCEx td(ALE-NOE) th(NOE-ALE) |
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