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STM32U595AI Arkusz danych(PDF) 312 Page - STMicroelectronics |
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STM32U595AI Arkusz danych(HTML) 312 Page - STMicroelectronics |
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312 / 377 page ![]() Electrical characteristics STM32U59xxx 312/377 DS13633 Rev 1 Figure 57. Asynchronous multiplexed PSRAM/NOR read waveforms Table 126. Asynchronous non-multiplexed SRAM/PSRAM/NOR write-NWAIT timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 8 × tHCLK - 1 8 × tHCLK + 1 ns tw(NWE) FMC_NWE low time 6 × tHCLK - 1 6 × tHCLK + 1 tsu(NWAIT_NE) FMC_NWAIT(2) valid before FMC_NEx high 5 × tHCLK + 13 - th(NE_NWAIT) FMC_NEx hold time after FMC_NWAIT invalid 4 × tHCLK + 12 - 1. Evaluated by characterization. Not tested in production. 2. NWAIT pulse is equal to one HCLK cycle. NBL Data FMC_ NBL[1:0] FMC_ AD[15:0] tv(BL_NE) th(Data_NE) Address FMC_ A[25:16] tv(A_NE) FMC_NWE t v(A_NE) MS32755V1 Address FMC_NADV t v(NADV_NE) tw(NADV) tsu(Data_NE) th(AD_NADV) FMC_ NE FMC_NOE tw(NE) tw(NOE) tv(NOE_NE) t h(NE_NOE) th(A_NOE) th(BL_NOE) tsu(Data_NOE) th(Data_NOE) FMC_NWAIT tsu(NWAIT_NE) th(NE_NWAIT) |
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