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STM32F427AI датащи(PDF) 196 Page - STMicroelectronics |
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STM32F427AI датащи(HTML) 196 Page - STMicroelectronics |
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196 / 239 page ![]() Electrical characteristics STM32F427xx STM32F429xx 196/238 DocID024030 Rev 9 6.3.29 SD/SDIO MMC card host interface (SDIO) characteristics Unless otherwise specified, the parameters given in Table 108 for the SDIO/MMC interface are derived from tests performed under the ambient temperature, fPCLK2 frequency and VDD supply voltage conditions summarized in Table 17, with the following configuration: • Output speed is set to OSPEEDRy[1:0] = 10 • Capacitive 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. Figure 78. SDIO high-speed mode Figure 79. SD default mode |
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