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STM32L4P5CEU6P 数据表(PDF) 249 Page - STMicroelectronics |
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STM32L4P5CEU6P 数据表(HTML) 249 Page - STMicroelectronics |
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249 / 311 page ![]() DS12903 Rev 2 249/311 STM32L4P5xx Electrical characteristics 277 Table 101. Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings(1) 1. Guaranteed by characterization results. Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 3THCLK-0.5 3THCLK+1 ns tv(NOE_NE) FMC_NEx low to FMC_NOE low 0 1 tw(NOE) FMC_NOE low time 2THCLK-0.5 2THCLK+1 th(NE_NOE) FMC_NOE high to FMC_NE high hold time THCLK - tv(A_NE) FMC_NEx low to FMC_A valid - 1 th(A_NOE) Address hold time after FMC_NOE high 2THCLK-1 - tsu(Data_NE) Data to FMC_NEx high setup time THCLK+14 - tsu(Data_NOE) Data to FMC_NOEx high setup time 14 - 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 - THCLK+1.5 Table 102. Asynchronous non-multiplexed SRAM/PSRAM/NOR read-NWAIT timings(1) 1. Guaranteed by characterization results. Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 8THCLK-0.5 8THCLK+1 ns tw(NOE) FMC_NWE low time 7THCLK-0.5 7THCLK+0.5 tw(NWAIT) FMC_NWAIT low time THCLK - tsu(NWAIT_NE) FMC_NWAIT valid before FMC_NEx high 5THCLK+12.5 - th(NE_NWAIT) FMC_NEx hold time after FMC_NWAIT invalid 4THCLK+12 - |
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