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STM32F722VCK7TR Datasheet(PDF) 179 Page - STMicroelectronics |
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STM32F722VCK7TR Datasheet(HTML) 179 Page - STMicroelectronics |
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179 / 229 page ![]() DS11853 Rev 6 179/229 STM32F722xx STM32F723xx Electrical characteristics 201 Table 93. Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings(1) 1. CL = 30 pF. Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 2Thclk -1 2Thclk +1 ns tv(NOE_NE) FMC_NEx low to FMC_NOE low 0 0.5 tw(NOE) FMC_NOE low time 2Thclk -1 2Thclk +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 Thclk -1.5 - tsu(Data_NOE) Data to FMC_NOEx high setup time Thclk -1.5 - 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 -0.5 Table 94. 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 7Thclk +1 7Thclk +1 ns tw(NOE) FMC_NWE low time 5Thclk -1 5Thclk +1 tw(NWAIT) FMC_NWAIT low time Thclk -0.5 - tsu(NWAIT_NE) FMC_NWAIT valid before FMC_NEx high 5Thclk +1.5 - th(NE_NWAIT) FMC_NEx hold time after FMC_NWAIT invalid 4Thclk +1 - |
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