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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) 146 Page - STMicroelectronics |
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STM32H753II датащи(HTML) 146 Page - STMicroelectronics |
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146 / 361 page  Electrical characteristics (rev Y) STM32H753xI 146/360 DS12117 Rev 8 Table 65. Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 2Tfmc_ker_ck − 12 Tfmc_ker_ck +1 ns tv(NOE_NE) FMC_NEx low to FMC_NOE low 0 0.5 tw(NOE) FMC_NOE low time 2Tfmc_ker_ck − 12Tfmc_ker_ck + 1 th(NE_NOE) FMC_NOE high to FMC_NE high hold time 0 - tv(A_NE) FMC_NEx low to FMC_A valid - 0.5 th(A_NOE) Address hold time after FMC_NOE high 0 - tv(BL_NE) FMC_NEx low to FMC_BL valid - 0.5 th(BL_NOE) FMC_BL hold time after FMC_NOE high 0 - tsu(Data_NE) Data to FMC_NEx high setup time 11 - tsu(Data_NOE) Data to FMC_NOEx high setup time 11 - th(Data_NOE) Data hold time after FMC_NOE high 0 - th(Data_NE) Data hold time after FMC_NEx high 0 - tv(NADV_NE) FMC_NEx low to FMC_NADV low - 0 tw(NADV) FMC_NADV low time - Tfmc_ker_ck + 1 1. Guaranteed by characterization results. Table 66. Asynchronous non-multiplexed SRAM/PSRAM/NOR read - NWAIT timings(1)(2) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 7Tfmc_ker_ck +1 7Tfmc_ker_ck +1 ns tw(NOE) FMC_NWE low time 5Tfmc_ker_ck −15Tfmc_ker_ck +1 tw(NWAIT) FMC_NWAIT low time Tfmc_ker_ck −0.5 tsu(NWAIT_NE) FMC_NWAIT valid before FMC_NEx high 4Tfmc_ker_ck +11 - th(NE_NWAIT) FMC_NEx hold time after FMC_NWAIT invalid 3Tfmc_ker_ck+11.5 - 1. Guaranteed by characterization results. 2. NWAIT pulse width is equal to 1 AHB cycle. |
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