STM32MP151AAB3 datasheet(167/253 Pages) STMICROELECTRONICS

167 / 253 page

DS12500 Rev 3

167/253

STM32MP151A/D

Electrical characteristics

232

Output buffer timing characteristics (IO structure with _h, HSLV option

enabled)

The HSLVEN_xx bits of SYSCFG_IOCTRLSETR register (together with OTP bit

PRODUCT_BELOW_2V5) can be used to optimize the I/O speed when the product voltage

is below 2.5 V typ. (2.7 V max.).

3. The maximum frequency is defined with the following conditions: (tr+tf) ≤ 2/3, skew ≤ 1/20 T and 45% < duty cycle < 55%.

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

respectively.

5. Compensation system enabled.

Table 54. Output timing characteristics (HSLV ON, _h IO structure)(1)

Speed

Symbol

Parameter

conditions

Min

Max

Unit

Fmax(2)

Maximum frequency

C = 50 pF, 1.71 V ≤ VDD ≤ 2.7 V

MHz

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V

C = 10 pF, 1.71 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, 1.71 V ≤ VDD ≤ 2.7 V

9.9

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V

8.1

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V

7.1

C = 10 pF, 1.71 V ≤ VDD ≤ 2.7 V

5.8

Fmax(2)

Maximum frequency

C = 50 pF, 1.71 V ≤ VDD ≤ 2.7 V

MHz

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V

C = 10 pF, 1.71 V ≤ VDD ≤ 2.7 V

100

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C = 50 pF, 1.71 V ≤ VDD ≤ 2.7 V

5.7

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V

4.2

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V

3.5

C = 10 pF, 1.71 V ≤ VDD ≤ 2.7 V

2.7

Fmax(2)

Maximum frequency

C = 50 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-71

MHz

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-101

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-126

C = 10 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-162

tr/tf(3)

Output high to low level

fall time and output low

to high level rise time

C = 50 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-4.7

C = 30 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-3.3

C = 20 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-2.7

C = 10 pF, 1.71 V ≤ VDD ≤ 2.7 V(4)

-1.9

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