STM32U535NET3QTR datasheet(205/278 Pages) STMICROELECTRONICS

205 / 278 page

DS14217 Rev 1

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STM32U535xx

Electrical characteristics

253

Output AC characteristics

The definition and values of output AC characteristics are given in Figure 35: Output AC

characteristics definition and in the table below respectively.

Unless otherwise specified, the parameters given are derived from tests performed under

the ambient temperature and supply voltage conditions summarized in Table 32.

Table 94. Output AC characteristics, HSLV OFF (all I/Os except FT_c,

FT_t in VBAT mode, and FT_o I/Os(1))(2)(3)(4)

Speed Symbol

Parameter

Conditions

Min

Max

Unit

Fmax

Maximum frequency

all I/Os

CL = 50 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

12.5

MHz

CL = 50 pF, 1.58 V ≤ VDDIOx < 2.7 V

CL = 50 pF, 1.08 V ≤ VDDIOx < 1.58 V

CL = 10 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

12.5

CL = 10 pF, 1.58 V ≤ VDDIOx < 2.7 V

CL = 10 pF, 1.08 V ≤ VDDIOx < 1.58 V

tr/tf

Output rise and fall time

all I/Os

CL = 50 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

CL = 50 pF, 1.58 V ≤ VDDIOx < 2.7 V

CL = 50 pF, 1.08 V ≤ VDDIOx < 1.58 V

CL = 10 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

12.5

CL = 10 pF, 1.58 V ≤ VDDIOx < 2.7 V

CL = 10 pF, 1.08 V ≤ VDDIOx < 1.58 V

Fmax

Maximum frequency

all I/Os

CL = 30 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

MHz

CL = 30 pF, 1.58 V ≤ VDDIOx < 2.7 V

12.5

CL = 30 pF, 1.08 V ≤ VDDIOx < 1.58 V

2.5

CL = 10 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

CL = 10 pF, 1.58 V ≤ VDDIOx < 2.7 V

12.5

CL = 10 pF, 1.08 V ≤ VDDIOx ≤<1.58 V

2.5

tr/tf

Output rise and fall time

all I/Os

CL = 30 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

5.8

CL = 30 pF, 1.58 V ≤ VDDIOx < 2.7 V

CL = 30 pF, 1.08 V ≤ VDDIOx < 1.58 V

CL = 10 pF, 2.7 V ≤ VDDIOx ≤ 3.6 V

4.2

CL = 10 pF, 1.58 V ≤ VDDIOx < 2.7 V

7.5

CL = 10 pF, 1.08 V ≤ VDDIOx < 1.58 V

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