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STM32F205RFT6 Datasheet(PDF) 146 Page - STMicroelectronics |
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STM32F205RFT6 Datasheet(HTML) 146 Page - STMicroelectronics |
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146 / 184 page ![]() Electrical characteristics STM32F20xxx 146/184 DocID15818 Rev 15 Figure 70. PC Card/CompactFlash controller waveforms for I/O space write access Table 80. Switching characteristics for PC Card/CF read and write cycles in attribute/common space(1)(2) 1. CL = 30 pF. 2. Guaranteed by characterization results, not tested in production. Symbol Parameter Min Max Unit tv(NCEx-A) FSMC_Ncex low to FSMC_Ay valid - 0 ns th(NCEx_AI) FSMC_NCEx high to FSMC_Ax invalid 4 - ns td(NREG-NCEx) FSMC_NCEx low to FSMC_NREG valid - 3.5 ns th(NCEx-NREG) FSMC_NCEx high to FSMC_NREG invalid THCLK+ 4 - ns td(NCEx-NWE) FSMC_NCEx low to FSMC_NWE low - 5THCLK+ 1 ns td(NCEx-NOE) FSMC_NCEx low to FSMC_NOE low - 5THCLK ns tw(NOE) FSMC_NOE low width 8THCLK– 0.5 8THCLK+ 1 ns td(NOE_NCEx) FSMC_NOE high to FSMC_NCEx high 5THCLK+ 2.5 - ns tsu (D-NOE) FSMC_D[15:0] valid data before FSMC_NOE high 4 - ns th (N0E-D) FSMC_N0E high to FSMC_D[15:0] invalid 2 - ns tw(NWE) FSMC_NWE low width 8THCLK- 1 8THCLK+ 4 ns td(NWE_NCEx) FSMC_NWE high to FSMC_NCEx high 5THCLK+ 1.5 - ns td(NCEx-NWE) FSMC_NCEx low to FSMC_NWE low - 5HCLK+ 1 ns tv (NWE-D) FSMC_NWE low to FSMC_D[15:0] valid - 0 ns th (NWE-D) FSMC_NWE high to FSMC_D[15:0] invalid 8THCLK -ns td (D-NWE) FSMC_D[15:0] valid before FSMC_NWE high 13THCLK -ns |
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