STM32U375CE datasheet(169/222 Pages) STMICROELECTRONICS

169 / 222 page

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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

tOV

Output valid default time SD

0.5

1.5

tOH

Output hold default time SD

1. With capacitive load CL = 20 pF.

2. For SD 1.8 V support, an external voltage converter is needed.

3. Minimum window of time where the data needs to be stable for proper sampling in tuning mode.

Table 115. e.MMC characteristics (VDD = 1.71 V to 1.9 V)

Evaluated by characterization. Not tested in production.

Symbol

Parameter(1)

Conditions

Min

Typ

Max

Unit

fPP

Clock frequency in data transfer mode

MHz

tW(CKL)

Clock low time

fPP = 48 MHz

9.5

10.5

tW(CKH)

Clock high time

fPP = 48 MHz

9.5

10.5

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

tISU

Input setup time HS

tIH

Input hold time HS

2.5

tIDW(2)

Input valid window (variable window)

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

tOV

Output valid time HS

7.5

tOH

Output hold time HS

1. With capacitive load CL = 20 pF.

2. Minimum window of time where the data needs to be stable for proper sampling in tuning mode.

Figure 55. SD high-speed mode

D, CMD output

D, CMD input

tOV

tOH

tISU

tIH

tC(CK)

tW(CKH)

tW(CKL)

Figure 56. SD default mode

D, CMD output

tOV

tOH

STM32U375xx

Electrical characteristics

DS14861 - Rev 2

page 169/222

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