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STM32F107VC датащи(PDF) 72 Page - STMicroelectronics |
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STM32F107VC датащи(HTML) 72 Page - STMicroelectronics |
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72 / 108 page ![]() Electrical characteristics STM32F105xx, STM32F107xx 72/108 DocID15274 Rev 10 Ethernet characteristics Table 48 showns the Ethernet operating voltage. Table 49 gives the list of Ethernet MAC signals for the SMI (station management interface) and Figure 31 shows the corresponding timing diagram. Figure 31. Ethernet SMI timing diagram Table 47. USB OTG FS electrical characteristics(1) 1. Guaranteed by design, not tested in production. Driver characteristics Symbol Parameter Conditions Min Max Unit tr Rise time(2) 2. Measured from 10% to 90% of the data signal. For more detailed informations, refer to USB Specification - Chapter 7 (version 2.0). CL = 50 pF 420 ns tf Fall time(2) CL = 50 pF 4 20 ns trfm Rise/ fall time matching tr/tf 90 110 % VCRS Output signal crossover voltage - 1.3 2.0 V Table 48. Ethernet DC electrical characteristics Symbol Parameter Min.(1) 1. All the voltages are measured from the local ground potential. Max.(1) Unit Input level VDD Ethernet operating voltage 3.0 3.6 V Table 49. Dynamic characteristics: Ethernet MAC signals for SMI Symbol Rating Min Typ Max Unit tMDC MDC cycle time (1.71 MHz, AHB = 72 MHz) 583 583.5 584 ns td(MDIO) MDIO write data valid time 13.5 14.5 15.5 ns tsu(MDIO) Read data setup time 35 - - ns th(MDIO) Read data hold time 0 - - ns |
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