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STM32F107RC 데이터시트(PDF) 66 Page - STMicroelectronics |
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STM32F107RC 데이터시트(HTML) 66 Page - STMicroelectronics |
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66 / 95 page ![]() Electrical characteristics STM32F105xx, STM32F107xx 66/95 Doc ID 15274 Rev 4 Ethernet characteristics Table 47 showns the Ethernet operating voltage. Table 48 gives the list of Ethernet MAC signals for the SMI (station management interface) and Figure 26 shows the corresponding timing diagram. Figure 26. Ethernet SMI timing diagram Table 46. 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, please 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 47. 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 48. Dynamics characteristics: Ethernet MAC signals for SMI(1) 1. TBD stands for to be determined. Symbol Rating Min Typ Max Unit tMDC MDC cycle time (1.71 MHz, AHB = 72 MHz) 582.8 583.3 584 ns td(MDIO) MDIO write data valid time 305.2 305.9 306.5 ns tsu(MDIO) Read data setup time TBD TBD TBD ns th(MDIO) Read data hold time TBD TBD TBD ns ETH_MDC ETH_MDIO(O) ETH_MDIO(I) tMDC td(MDIO) tsu(MDIO) th(MDIO) ai15666c |
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