STM32F103XC_09 Datasheet, PDF (95/123 Pages) STMicroelectronics – High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces

STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
SD/SDIO MMC card host interface (SDIO) characteristics
Unless otherwise specified, the parameters given in Table 54 are derived from tests
performed under ambient temperature, f_PCLKx frequency and V_DD supply voltage conditions
summarized in Table 10.
Refer to Section 5.3.13: I/O port characteristics for more details on the input/output alternate
function characteristics (D[7:0], CMD, CK).
Figure 50. SDIO high-speed mode
tf
tr
tW(CKH)
CK
D, CMD
(output)
D, CMD
(input)
tC
tOV
tW(CKL)
tOH
tISU
tIH
Figure 51. SD default mode
ai14887
CK
D, CMD
(output)
tOVD
tOHD
ai14888
Doc ID 14611 Rev 7
95/123