Datasheet

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STM32F411xC STM32F411xE Electrical characteristics
123
6.3.24 SD/SDIO MMC/eMMC card host interface (SDIO) characteristics
Unless otherwise specified, the parameters given in Table 76 for the SDIO/MMC/eMMC
interface are derived from tests performed under the ambient temperature, f
PCLK2
frequency
and V
DD
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 (for eMMC C = 20 pF)
• Measurement points are done at CMOS levels: 0.5V
DD
Refer to Section 6.3.16: I/O port characteristics for more details on the input/output
characteristics.
Figure 44. SDIO high-speed mode
Figure 45. SD default mode
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