STM32H7B3AI datasheet(179/238 Pages) STMICROELECTRONICS

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Symbol

Parameter

Conditions

Min(1)

Typ(1)

Max(1)(2)

Unit

tISU

Input setup time HS

2.5

tIH

Input hold time HS

0.5

tIDW(3)

Input valid window (variable window)

3.0

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

tOV

Output valid time HS

6.5

tOH

Output hold time HS

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

tISUD

Input setup time SD

2.5

tIHD

Input hold time SD

0.5

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

tOVD

Output valid default time SD

1.5

tOHD

Output hold default time SD

1. Guaranteed by characterization results.

2. At VOS1, these values are degraded by up to 5 %.

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

Table 123. Dynamics characteristics: eMMC characteristics VDD=1.71V to 1.9V

Above 100 MHz, CL = 20 pF.

Symbol

Parameter

Conditions

Min(1)

Typ(1)

Ma(1)(2)

Unit

fPP

Clock frequency in data transfer mode

MHz

tW(CKL)

Clock low time

fPP =52 MHz

8.5

9.5

tW(CKH)

Clock high time

fPP =52 MHz

8.5

9.5

CMD, D inputs (referenced to CK) in eMMC mode

tISU

Input setup time HS

2.5

tIH

Input hold time HS

0.5

tIDW(3)

Input valid window (variable window)

3.5

CMD, D outputs (referenced to CK) in eMMC mode

tOVD

Output valid time HS

6.5

tOHD

Output hold time HS

5.5

1. Guaranteed by characterization results.

2. At VOS1, these values are degraded by up to 5 %.

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

STM32H7B3xI

Operating conditions

DS13139 - Rev 8

page 179/238

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