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STM32F101X6 数据表(PDF) 50 Page - STMicroelectronics |
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STM32F101X6 数据表(HTML) 50 Page - STMicroelectronics |
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50 / 74 page ![]() Electrical characteristics STM32F101xx 50/74 Input/output AC characteristics The definition and values of input/output AC characteristics are given in Figure 21 and Table 35, respectively. Unless otherwise specified, the parameters given in Table 35 are derived from tests performed under ambient temperature and VDD supply voltage conditions summarized in Table 7. Table 35. I/O AC characteristics(1) 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. MODEx [1:0] bit value(1) Symbol Parameter Conditions Max Unit 10 fmax(IO)out Maximum frequency (2) 2. The maximum frequency is defined in Figure 21. CL = 50 pF, VDD = 2 V to 3.6 V 2 MHz tf(IO)out Output high to low level fall time CL = 50 pF, VDD = 2 V to 3.6 V 125(3) 3. Values based on design simulation and validated on silicon, not tested in production. ns tr(IO)out Output low to high level rise time 125(3) 01 fmax(IO)out Maximum frequency (2) CL= 50 pF, VDD = 2 V to 3.6 V 10 MHz tf(IO)out Output high to low level fall time CL= 50 pF, VDD = 2 V to 3.6 V 25(3) ns tr(IO)out Output low to high level rise time 25(3) 11 Fmax(IO)out Maximum Frequency (2) CL= 30 pF, VDD = 2.7 V to 3.6 V 50 MHz CL = 50 pF, VDD = 2.7 V to 3.6 V 30 MHz CL = 50 pF, VDD = 2 V to 2.7 V 20 MHz tf(IO)out Output high to low level fall time CL = 30 pF, VDD = 2.7 V to 3.6 V 5(3) ns 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 ns |
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