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STM32U595AI Datenblatt(PDF) 314 Page - STMicroelectronics |
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STM32U595AI Datenblatt(HTML) 314 Page - STMicroelectronics |
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314 / 377 page ![]() Electrical characteristics STM32U59xxx 314/377 DS13633 Rev 1 Figure 58. 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 129. Asynchronous multiplexed PSRAM/NOR write timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 3 × tHCLK - 1 3 × tHCLK ns tv(NWE_NE) FMC_NEx low to FMC_NWE low tHCLK - 1 tHCLK tw(NWE) FMC_NWE low time 2 × tHCLK - 0.5 2 × tHCLK + 1 th(NE_NWE) FMC_NWE high to FMC_NE high hold time tHCLK - tv(A_NE) FMC_NEx low to FMC_A valid - 1 tv(NADV_NE) FMC_NEx low to FMC_NADV low 0 2 tw(NADV) FMC_NADV low time tHCLK - 0.5 tHCLK + 1 th(AD_NADV) FMC_AD(adress) valid hold time after FMC_NADV high) tHCLK - 4.5 - th(A_NWE) Address hold time after FMC_NWE high tHCLK - 0.5 - th(BL_NWE) FMC_BL hold time after FMC_NWE high tHCLK - 0.5 - tv(BL_NE) FMC_NEx low to FMC_BL valid - 0.5 tv(Data_NADV) FMC_NADV high to Data valid - tHCLK + 2 th(Data_NWE) Data hold time after FMC_NWE high tHCLK - 1. Evaluated by characterization. Not tested in production. |
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