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STM32F217VG データシート(PDF) 97 Page - STMicroelectronics |
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STM32F217VG データシート(HTML) 97 Page - STMicroelectronics |
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97 / 173 page  STM32F21xxx Electrical characteristics Doc ID 17050 Rev 8 97/173 Input/output AC characteristics The definition and values of input/output AC characteristics are given in Figure 35 and Table 45, respectively. Unless otherwise specified, the parameters given in Table 45 are derived from tests performed under the ambient temperature and VDD supply voltage conditions summarized in Table 11. 4. Based on characterization data, not tested in production. Table 45. I/O AC characteristics(1)(2) OSPEEDRy [1:0] bit value(1) Symbol Parameter Conditions Min Typ Max Unit 00 fmax(IO)out Maximum frequency (3) CL = 50 pF, VDD > 2.70 V - - 2 MHz CL = 50 pF, VDD > 1.8 V - - 2 CL = 10 pF, VDD > 2.70 V - - TBD CL = 10 pF, VDD > 1.8 V - - TBD tf(IO)out Output high to low level fall time CL = 50 pF, VDD = 1.8 V to 3.6 V -- TBD ns tr(IO)out Output low to high level rise time -- TBD 01 fmax(IO)out Maximum frequency (3) CL = 50 pF, VDD > 2.70 V - - 25 MHz CL = 50 pF, VDD > 1.8 V - - 12.5(4) CL = 10 pF, VDD > 2.70 V - - 50(4) CL = 10 pF, VDD > 1.8 V - - TBD tf(IO)out Output high to low level fall time CL = 50 pF, VDD < 2.7 V - - TBD ns CL = 10 pF, VDD > 2.7 V - - TBD tr(IO)out Output low to high level rise time CL = 50 pF, VDD < 2.7 V - - TBD CL = 10 pF, VDD > 2.7 V - - TBD 10 fmax(IO)out Maximum frequency (3) CL = 40 pF, VDD > 2.70 V - - 50(4) MHz CL = 40 pF, VDD > 1.8 V - - 25 CL = 10 pF, VDD > 2.70 V - - 100(4) CL = 10 pF, VDD > 1.8 V - - TBD tf(IO)out Output high to low level fall time CL = 50 pF, 2.4 < VDD < 2.7 V - - TBD ns CL = 10 pF, VDD > 2.7 V - - TBD tr(IO)out Output low to high level rise time CL = 50 pF, 2.4 < VDD < 2.7 V - - TBD CL = 10 pF, VDD > 2.7 V - - TBD |
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