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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32F415VG Scheda tecnica(PDF) 140 Page - STMicroelectronics |
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STM32F415VG Scheda tecnica(HTML) 140 Page - STMicroelectronics |
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140 / 186 page  Electrical characteristics STM32F415xx, STM32F417xx 140/186 DocID022063 Rev 4 Figure 56. Asynchronous non-multiplexed SRAM/PSRAM/NOR write waveforms 1. Mode 2/B, C and D only. In Mode 1, FSMC_NADV is not used. tv(BL_NE) FSMC_NEx low to FSMC_BL valid - 1.5 ns th(BL_NOE) FSMC_BL hold time after FSMC_NOE high 0 - ns tsu(Data_NE) Data to FSMC_NEx high setup time THCLK+4 - ns tsu(Data_NOE) Data to FSMC_NOEx high setup time THCLK+4 - ns th(Data_NOE) Data hold time after FSMC_NOE high 0 - ns th(Data_NE) Data hold time after FSMC_NEx high 0 - ns tv(NADV_NE) FSMC_NEx low to FSMC_NADV low - 2 ns tw(NADV) FSMC_NADV low time - THCLK ns 1. CL = 30 pF. 2. Based on characterization, not tested in production. Table 76. Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings(1)(2) Symbol Parameter Min Max Unit tw(NE) FSMC_NE low time 3THCLK 3THCLK+ 4 ns tv(NWE_NE) FSMC_NEx low to FSMC_NWE low THCLK–0.5 THCLK+0.5 ns tw(NWE) FSMC_NWE low time THCLK–1 THCLK+2 ns th(NE_NWE) FSMC_NWE high to FSMC_NE high hold time THCLK–1 - ns tv(A_NE) FSMC_NEx low to FSMC_A valid - 0 ns Table 75. Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings(1)(2) NBL Data FSMC_NEx FSMC_NBL[1:0] FSMC_D[15:0] tv(BL_NE) th(Data_NWE) FSMC_NOE Address FSMC_A[25:0] tv(A_NE) tw(NWE) FSMC_NWE tv(NWE_NE) t h(NE_NWE) th(A_NWE) th(BL_NWE) tv(Data_NE) tw(NE) ai14990 FSMC_NADV(1) t v(NADV_NE) tw(NADV) |
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