STM32F358XC datasheet(86/134 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F358xC

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DocID025540 Rev 4

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Figure 20 and

Table 54, respectively.

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

ambient temperature and VDD supply voltage conditions summarized in Table 24.

Table 54. I/O AC characteristics(1)

OSPEEDRy [1:0]

value(1)

Symbol

Parameter

Conditions

Min

Max

Unit

fmax(IO)out Maximum frequency(2)

CL = 50 pF, VDD = 1.65 V to 1.95 V

-1

MHz

tf(IO)out

Output high to low level

fall time

CL = 50 pF, VDD = 1.65 V to 1.95 V

125(3)

tr(IO)out

Output low to high level

rise time

125(3)

fmax(IO)out Maximum frequency(2)

CL = 50 pF, VDD = 1.65 V to 1.95 V

-4(3)

MHz

tf(IO)out

Output high to low level

fall time

CL = 50 pF, VDD = 1.65 V to 1.95 V

62.5(3)

tr(IO)out

Output low to high level

rise time

62.5(3)

fmax(IO)out Maximum frequency(2)

CL = 50 pF, VDD = 1.65 V to 1.95 V

-10(3)

MHz

tf(IO)out

Output high to low level

fall time

CL = 50 pF, VDD = 1.65 V to 1.95 V

-25(3)

tr(IO)out

Output low to high level

rise time

CL = 50 pF, VDD = 1.65 V to 1.95 V

-25(3)

FM+

configuration(4)

fmax(IO)out Maximum frequency(2)

CL = 50 pF, VDD = 1.65 V to 1.95 V

-0.5(4)(3) MHz

tf(IO)out

Output high to low level

fall time

-16(4)(3)

tr(IO)out

Output low to high level

rise time

-44(4)(3)

-tEXTIpw

Pulse width of external

signals detected by the

EXTI controller

1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the RM0316 reference manual for a description of

GPIO Port configuration register.

2. The maximum frequency is defined in Figure 20.

3. Guaranteed by design, not tested in production.

4. The I/O speed configuration is bypassed in FM+ I/O mode. Refer to the RM0316 STM32F303xx, STM32F358xC and

STM32F328x4/6/8 reference manual (RM0316) for a description of FM+ I/O mode configuration.

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