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STM32F405 数据表(PDF) 162 Page - STMicroelectronics |
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STM32F405 数据表(HTML) 162 Page - STMicroelectronics |
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162 / 204 page  Electrical characteristics STM32F405xx, STM32F407xx 162/203 DS8626 Rev 9 5.3.28 SD/SDIO MMC card host interface (SDIO) characteristics Unless otherwise specified, the parameters given in Table 88 are derived from tests performed under ambient temperature, fPCLKx frequency and VDD supply voltage conditions summarized in Table 14 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 5.3.16: I/O port characteristics for more details on the input/output characteristics. Figure 73. SDIO high-speed mode tsu(DATA) Data input setup time 2.5 - ns th(DATA) Data hold time 1 - tsu(HSYNC), tsu(VSYNC) HSYNC/VSYNC input setup time 2 - th(HSYNC), th(VSYNC) HSYNC/VSYNC input hold time 0.5 - 1. Guaranteed by characterization. Table 87. DCMI characteristics(1) (continued) Symbol ParameterMin Max Unit tW(CKH) CK D, CMD (output) D, CMD (input) tC tW(CKL) tOV tOH tISU tIH tf tr ai14887 |
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