STM32H757AI datasheet(161/251 Pages) STMICROELECTRONICS

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DS12931 Rev 1

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STM32H757xI

Electrical characteristics

230

Output buffer timing characteristics (HSLV option enabled)

Table 76. Output timing characteristics (HSLV ON)(1)

Speed

Symbol

Parameter

conditions

Min

Max

Unit

Fmax(2) Maximum frequency

C=50 pF, 1.62 V≤VDD≤2.7 V

MHz

C=30 pF, 1.62 V≤VDD≤2.7 V

C=10 pF, 1.62 V≤VDD≤2.7 V

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C=50 pF, 1.62 V≤VDD≤2.7 V

C=30 pF, 1.62 V≤VDD≤2.7 V

C=10 pF, 1.62 V≤VDD≤2.7 V

6.6

Fmax(2) Maximum frequency

C=50 pF, 1.62 V≤VDD≤2.7 V

MHz

C=30 pF, 1.62 V≤VDD≤2.7 V

C=10 pF, 1.62 V≤VDD≤2.7 V

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C=50 pF, 1.62 V≤VDD≤2.7 V

6.6

C=30 pF, 1.62 V≤VDD≤2.7 V

4.8

C=10 pF, 1.62 V≤VDD≤2.7 V

Fmax(2) Maximum frequency

C=50 pF, 1.62 V≤VDD≤2.7 V(4)

-55

MHz

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-80

C=10 pF, 1.62 V≤VDD≤2.7 V(4)

133

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-5.8

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-4

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-2.4

Fmax(2) Maximum frequency

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-60

MHz

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-90

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

175

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-5.3

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-3.6

C=30 pF, 1.62 V≤VDD≤2.7 V(4)

-1.9

1. Guaranteed by design.

2. The maximum frequency is defined with the following conditions:

(tr+tf) ≤ 2/3 T

Skew ≤ 1/20 T

45%<Duty cycle<55%

3. The fall and rise times are defined between 90% and 10% and between 10% and 90% of the output waveform, respectively.

4. Compensation system enabled.

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