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STM32F446RC 数据表(PDF) 152 Page - STMicroelectronics |
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STM32F446RC 数据表(HTML) 152 Page - STMicroelectronics |
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152 / 202 page  Electrical characteristics STM32F446xC/E 152/202 DocID027107 Rev 6 6.3.26 FMC characteristics Unless otherwise specified, the parameters given in Table 86 to Table 93 for the FMC interface are derived from tests performed under the ambient temperature, fHCLK frequency and VDD supply voltage conditions summarized in Table 15, with the following configuration: • Output speed is set to OSPEEDRy[1:0] = 10 • Capacitance load C = 30 pF • Measurement points are done at CMOS levels: 0.5VDD Refer to Section 6.3.17: I/O port characteristics for more details on the input/output characteristics. Asynchronous waveforms and timings Figure 50 through Figure 53 represent asynchronous waveforms and Table 86 through Table 93 provide the corresponding timings. The results shown in these tables are obtained with the following FMC configuration: • AddressSetupTime = 0x1 • AddressHoldTime = 0x1 • DataSetupTime = 0x1 (except for asynchronous NWAIT mode , DataSetupTime = 0x5) • BusTurnAroundDuration = 0x0 In all timing tables, the THCLK is the HCLK clock period. |
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