STM32F103XC datasheet(93/143 Pages) STMICROELECTRONICS

93 / 143 page

DS5792 Rev 13

93/143

STM32F103xC, STM32F103xD, STM32F103xE

Electrical characteristics

135

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Figure 46 and

Table 48, respectively.

Unless otherwise specified, the parameters given in Table 48 are derived from tests

performed under ambient temperature and VDD supply voltage conditions summarized in

Table 10.

Table 48. I/O AC characteristics(1)

MODEx[1:0]

bit value(1)

Symbol

Parameter

Conditions

Min

Max

Unit

fmax(IO)out Maximum frequency(2)

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

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

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

MHz

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

MHz

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

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)

-tEXTIpw

Pulse width of external

signals detected by the

EXTI controller

-10

1. The I/O speed is configured using the MODEx[1:0] bits. Refer to the STM32F10xxx reference manual for a description of

GPIO Port configuration register.

2. The maximum frequency is defined in Figure 46.

3. Guaranteed by design.

STM32F103XC Datasheet(PDF) 93 Page - STMicroelectronics

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