STM32F103xC, STM32F103xD, STM32F103xE
Table 53. SD / MMC characteristics
Electrical characteristics
Symbol
Parameter
Conditions
Min
Max
Unit
Clock frequency in data transfer
mode
fPP
CL ≤ 30 pF
0
TBD
MHz
tW(CKL)
Clock low time
Clock high time
Clock rise time
Clock fall time
CL ≤ 30 pF
CL ≤ 30 pF
CL ≤ 30 pF
CL ≤ 30 pF
TBD
TBD
tW(CKH)
ns
tr
tf
TBD
TBD
tC
CMD, D inputs (referenced to CK)
tISU
tIH
Input setup time
Input hold time
CL ≤ 30 pF
CL ≤ 30 pF
TBD
TBD
ns
ns
CMD, D outputs (referenced to CK) in MMC and SD HS mode
tOV
tOH
Output valid time
Output hold time
CL ≤ 30 pF
CL ≤ 30 pF
TBD
TBD
TBD
CMD, D outputs (referenced to CK) in SD default mode(1)
tOVD
tOHD
Output valid default time
Output hold default time
CL ≤ 30 pF
CL ≤ 30 pF
ns
TBD
1. Refer to SDIO_CLKCR, the SDI clock control register to control the CK output.
USB characteristics
The USB interface is USB-IF certified (Full Speed).
Table 54. USB startup time
Symbol
tSTARTUP
Parameter
Max
Unit
µs
USB transceiver startup time
1
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