STM32MP151D datasheet(222/253 Pages) STMICROELECTRONICS

222 / 253 page

Electrical characteristics

STM32MP151A/D

222/253

DS12500 Rev 3

Table 102. Dynamic characteristics: SD / MMC / e•MMC characteristics,

VDD = 2.7 V to 3.6 V(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPP

Clock frequency in data transfer mode

130

MHz

SDIO_CK/fpclk2 frequency ratio

8/3

tW(CKL)

Clock low time

fPP = 52 MHz

8.5

9.5

tW(CKH)

Clock high time

8.5

9.5

CMD, D inputs (referenced to CK) in MMC and SD HS/SDR(3)/DDR(3) mode

tISU

Input setup time HS

1.5

tIH

Input hold time HS

1.5

tIDW(4)

Input valid window (variable window)

2.5

CMD, D outputs (referenced to CK) in MMC and SD HS/SDR(3)/DDR(3) mode

tOV

Output valid time HS

-5

6.5

tOH

Output hold time HS

2.5

CMD, D inputs (referenced to CK) in SD default mode

tISUD

Input setup time SD

1.5

tIHD

Input hold time SD

1.5

CMD, D outputs (referenced to CK) in SD default mode

tOVD

Output valid default time SD

-0.5

1.5

tOHD

Output hold default time SD

1. Guaranteed by characterization results.

2. Above 100 MHz, CL = 20 pF.

3. For SD 1.8 V support, an external voltage converter is required.

4. The minimum window of time where the data needs to be stable for proper sampling in tuning mode.

Table 103. Dynamic characteristics: SD / MMC / e•MMC characteristics

VDD = 1.71 V to 1.9 V(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPP

Clock frequency in data transfer mode

105

MHz

SDIO_CK/fpclk2 frequency ratio

8/3

tW(CKL)

Clock low time

fPP = 52 MHz

8.5

9.5

tW(CKH)

Clock high time

8.5

9.5

CMD, D inputs (referenced to CK) in e•MMC mode

tISU

Input setup time HS

1.5

tIH

Input hold time HS

2.5

tIDW(3)

Input valid window (variable window)

CMD, D outputs (referenced to CK) in e•MMC mode

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