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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32H753II датащи(PDF) 150 Page - STMicroelectronics |
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STM32H753II датащи(HTML) 150 Page - STMicroelectronics |
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150 / 361 page  Electrical characteristics (rev Y) STM32H753xI 150/360 DS12117 Rev 8 Figure 26. Asynchronous multiplexed PSRAM/NOR write waveforms NBL Data FMC_ NEx FMC_ NBL[1:0] FMC_ AD[15:0] tv(BL_NE) th(Data_NWE) FMC_NOE Address FMC_ A[25:16] tv(A_NE) tw(NWE) FMC_NWE tv(NWE_NE) t h(NE_NWE) th(A_NWE) th(BL_NWE) t v(A_NE) tw(NE) MS32756V1 Address FMC_NADV t v(NADV_NE) tw(NADV) tv(Data_NADV) th(AD_NADV) FMC_NWAIT tsu(NWAIT_NE) th(NE_NWAIT) Table 71. Asynchronous multiplexed PSRAM/NOR write timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 4Tfmc_ker_c − 14Tfmc_ker_ck ns tv(NWE_NE) FMC_NEx low to FMC_NWE low Tfmc_ker_c − 1Tfmc_ker_ck + 0.5 tw(NWE) FMC_NWE low time 2Tfmc_ker_ck− 0.5 2Tfmc_ker_ck+ 0.5 th(NE_NWE) FMC_NWE high to FMC_NE high hold time Tfmc_ker_ck − 0.5 - tv(A_NE) FMC_NEx low to FMC_A valid - 0 tv(NADV_NE) FMC_NEx low to FMC_NADV low 0 0.5 tw(NADV) FMC_NADV low time Tfmc_ker_ck Tfmc_ker_ck+ 1 th(AD_NADV) FMC_AD(address) valid hold time after FMC_NADV high Tfmc_ker_ck+0.5 - th(A_NWE) Address hold time after FMC_NWE high Tfmc_ker_ck+0.5 - th(BL_NWE) FMC_BL hold time after FMC_NWE high Tfmc_ker_ck − 0.5 - tv(BL_NE) FMC_NEx low to FMC_BL valid - 0.5 tv(Data_NADV) FMC_NADV high to Data valid - Tfmc_ker_ck + 2 th(Data_NWE) Data hold time after FMC_NWE high Tfmc_ker_ck+0.5 - 1. Guaranteed by characterization results. |
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