STM32F301C6 datasheet(90/141 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F301x6 STM32F301x8

90/141

DS9895 Rev 8

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Figure 24 and

Table 55, respectively.

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

ambient temperature and VDD supply voltage conditions summarized in Table 23.

Table 55. 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 = 2 V to 3.6 V

2(3)

MHz

tf(IO)out

Output high to low level

fall time

CL = 50 pF, VDD = 2 V to 3.6 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 = 2 V to 3.6 V

10(3)

MHz

tf(IO)out

Output high to low level

fall time

CL = 50 pF, VDD = 2 V to 3.6 V

-25(3)

tr(IO)out

Output low to high level

rise time

-25(3)

fmax(IO)out Maximum frequency(2)

CL = 30 pF, VDD = 2.7 V to 3.6 V

50(3)

MHz

CL = 50 pF, VDD = 2.7 V to 3.6 V

30(3)

MHz

CL = 50 pF, VDD = 2 V to 2.7 V

20(3)

MHz

tf(IO)out

Output high to low level

fall time

CL = 30 pF, VDD = 2.7 V to 3.6 V

5(3)

CL = 50 pF, VDD = 2.7 V to 3.6 V

8(3)

CL = 50 pF, VDD = 2 V to 2.7 V

12(3)

tr(IO)out

Output low to high level

rise time

CL = 30 pF, VDD = 2.7 V to 3.6 V

5(3)

CL = 50 pF, VDD = 2.7 V to 3.6 V

8(3)

CL = 50 pF, VDD = 2 V to 2.7 V

12(3)

FM+

configuration(4)

fmax(IO)out Maximum frequency(2)

CL = 50 pF, VDD = 2 V to 3.6 V

-2(4)

MHz

tf(IO)out

Output high to low level

fall time

-12(4)

tr(IO)out

Output low to high level

rise time

-34(4)

-tEXTIpw

Pulse width of external

signals detected by the

EXTI controller

-10

-‘

1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the RM0366 reference manual for a description of

GPIO Port configuration register.

2. The maximum frequency is defined in Figure 24.

3. Guaranteed by design.

4. The I/O speed configuration is bypassed in FM+ I/O mode. Refer to the STM32F301x6 STM32F301x8 reference manual

RM0366 for a description of FM+ I/O mode configuration.

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