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STM32H753II датащи(PDF) 160 Page - STMicroelectronics |
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STM32H753II датащи(HTML) 160 Page - STMicroelectronics |
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160 / 361 page ![]() Electrical characteristics (rev Y) STM32H753xI 160/360 DS12117 Rev 8 Figure 34. NAND controller waveforms for common memory write access 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) Table 77. Switching characteristics for NAND Flash read cycles(1) 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- 1. Guaranteed by characterization results. Table 78. Switching characteristics for NAND Flash write cycles(1) 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- 1. Guaranteed by characterization results. |
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