STM32F756VG Datasheet, PDF (195/228 Pages) STMicroelectronics – Up to 25 communication interfaces

STM32F756xx
Electrical characteristics
5.3.31
SD/SDIO MMC card host interface (SDMMC) characteristics
Unless otherwise specified, the parameters given in Table 110 for the SDIO/MMC interface
are derived from tests performed under the ambient temperature, f_PCLK2 frequency and V_DD
supply voltage conditions summarized in Table 17, with the following configuration:
• Output speed is set to OSPEEDRy[1:0] = 11
• Capacitive load C = 30 pF
• Measurement points are done at CMOS levels: 0.5V_DD
Refer to Section 5.3.17: I/O port characteristics for more details on the input/output
characteristics.
Figure 77. SDIO high-speed mode
TF
TR
T7#+(
#+
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OUTPUT
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INPUT
T#
T/6
T7#+,
T/(
T)35
T)(
Figure 78. SD default mode
#+
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OUTPUT
T/6$
T/($
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